A simple method for the selective quantification of polyethylene, polypropylene, and polystyrene plastic debris in soil by pyrolysis-gas chromatography/mass spectrometry
Publication date: Available online 26 February 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): Zacharias Steinmetz, Aaron Kintzi, Katherine Muñoz, Gabriele E. Schaumann (Source: Journal of Analytical and Applied Pyrolysis)
Source: Journal of Analytical and Applied Pyrolysis - February 27, 2020 Category: Chemistry Source Type: research

PAH sampling and quantification from woody biomass fast pyrolysis in a pyroprobe reactor with a modified tar sampling system
Publication date: Available online 26 February 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): C. Tsekos, K. Anastasakis, P.L. Schoenmakers, W. de Jong (Source: Journal of Analytical and Applied Pyrolysis)
Source: Journal of Analytical and Applied Pyrolysis - February 27, 2020 Category: Chemistry Source Type: research

A Study on Potential Recovery of Energy and Value-added Chemicals from in-situ Pyrolysis of Bambusa balcooa over Basic Metal Oxides
Publication date: Available online 25 February 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): Raj Kumar Dahal, Omid Norouzi, Jesse Cameron, Arun Pandian, Ankita Shrestha, Bishnu Acharya, Srividya PK, Animesh Dutta (Source: Journal of Analytical and Applied Pyrolysis)
Source: Journal of Analytical and Applied Pyrolysis - February 27, 2020 Category: Chemistry Source Type: research

Classification of lignocellulosic matrix of spines in Cactaceae by Py-GC/MS combined with omic tools and multivariate analysis: a chemotaxonomic approach
Publication date: Available online 20 February 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): Jorge Reyes-Rivera, Eloy Solano, Teresa Terrazas, Marcos Soto-Hernández, Salvador Arias, Yara C. Almanza-Arjona, Luis A. Polindara-GarcíaABSTRACTPyrolysis coupled to gas chromatography and mass spectrometry (Py-GC/MS) is a fast analytical technique used to characterize different lignocellulosic materials. Additionally, cheminformatics allows processing the vast amount of information obtained from Py-GC/MS for the classification of such materials. Here we characterized the lignocellulosic matrix of ...
Source: Journal of Analytical and Applied Pyrolysis - February 21, 2020 Category: Chemistry Source Type: research

Catalytic pyrolysis and bio-products upgrading derived from Chlorella vulgaris over its biochar and activated biochar-supported Fe catalysts
Publication date: Available online 21 February 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): Behnam Nejati, Parisa Adami, Ali Bozorg, Ahmad Tavasoli, Alireza Hajiseyed MirzahosseiniAbstractCatalytic and non-catalytic pyrolysis of Chlorella vulgaris microalgae was studied and the temperature, as the primary variable, was assessed to optimize the process. By changing the temperature from 450 to 850 °C, the highest performance of 58.51% was achieved in terms of energy recovery (ER) at the optimal temperature of 650 °C. Although known as a useless pyrolysis by-product, the remaining bi...
Source: Journal of Analytical and Applied Pyrolysis - February 21, 2020 Category: Chemistry Source Type: research

Aromatic hydrocarbons production and synergistic effect of plastics and biomass via one-pot catalytic co-hydropyrolysis on HZSM-5
Publication date: Available online 19 February 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): Wenjun Chen, Jifu Lu, Changsen Zhang, Yunyun Xie, Yuhang Wang, Jie Wang, Ruiqin ZhangAbstractThe catalytic co-hydropyrolysis of pine sawdust (PW) and high density polyethylene (HDPE) to selectively produce aromatic hydrocarbons was studied by optimizing reaction parameters (feedstock composition, reaction temperature, residue time, initial hydrogen pressure and catalyst to reactant ratio). The composition of feedstocks, reaction temperature and the ratio of catalyst to reactant all had significant effects on the...
Source: Journal of Analytical and Applied Pyrolysis - February 20, 2020 Category: Chemistry Source Type: research

Deoxygenation of Triolein to Green Diesel in the H2-free condition: Effect of Transition Metal Oxide Supported on Zeolite Y
In this study, TMO supported on zeolite Y catalysts (Ni-, Cu-, Co-, Zn- and Mn-Y) are prepared via wet-impregnation for deoxygenation of triolein, a model compound of non-edible oil under H2-free condition. The deoxygenation activity of TMO supported on zeolite Y is following the order of Ni-Y > Co-Y > Cu-Y > Mn-Y > Zn-Y. The nickel oxide supported on zeolite-Y (Ni-Y) shows the highest conversion up to 76.21% with 84.28% hydrocarbon selectivity after reacted at 380 °C for 2 h. Besides, the selectivity toward diesel range hydrocarbon is 92...
Source: Journal of Analytical and Applied Pyrolysis - February 15, 2020 Category: Chemistry Source Type: research

The Influence of Lipids on the Fate of Nitrogen during Hydrothermal Liquefaction of Protein-containing Biomass
Publication date: Available online 15 February 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): Y. Fan, U. Hornung, K. Raffelt, N. DahmenAbstractHydrothermal liquefaction (HTL) of carbohydrate (lactose), protein (lysine), and lipid (palmitic acid) surrogates was carried out in batch reactors for 20 min in a temperature range of 250 to 350 °C in order to understand interactions in hydrothermal reactions. A binary mixture of lysine and lactose leads to a higher bio-oil yield when compared to experiments made with isolated compounds, indicating a relevant contribution by Maillard reactions (...
Source: Journal of Analytical and Applied Pyrolysis - February 15, 2020 Category: Chemistry Source Type: research

Recycling of product gas does not affect fast pyrolysis oil yield and composition
Publication date: Available online 11 February 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): Mehmet Pala, Pushkar S. Marathe, Xun Hu, Frederik Ronsse, Wolter Prins, Sascha R.A. Kersten, Jean-Paul Lange, Roel J.M. WesterhofAbstractIt has been reported that a deoxygenated bio-oil (ca. 0.12 kg kg-1 O on bio-oil basis) can be obtained simply by recycling the non-condensable gases (NCG) of biomass fast pyrolysis to a fluidized-bed reactor operated at atmospheric pressure [Mullen et al., 2013, Energy Fuels, 27, 3867–3874]. Such an unprecedented effect would (i) complicate the use of lab-scale res...
Source: Journal of Analytical and Applied Pyrolysis - February 13, 2020 Category: Chemistry Source Type: research

Experimental and theoretical studies on the thermal stability and decomposition mechanism of HFO-1336mzz(Z) with POE lubricant
Publication date: Available online 11 February 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): Erguang Huo, Qibin Li, Chao Liu, Zhengyong Huang, Liyong XinABSTRACTThermal stability and decomposition mechanism of HFO-1336mzz(Z) with polyol ester (POE) lubricant were experimentally and theoretically investigated. The experimental results showed that the dissociation temperature range of HFO-1336mzz(Z) with lubricant at 4 MPa was 250-270℃. ReaxFF force field was carried out to investigate the thermal decomposition mechanism of HFO-1336mzz(Z) with lubricant (PEC4). The breakage of C-O bond in PEC4 mo...
Source: Journal of Analytical and Applied Pyrolysis - February 13, 2020 Category: Chemistry Source Type: research

Editorial Board
Publication date: March 2020Source: Journal of Analytical and Applied Pyrolysis, Volume 146Author(s): (Source: Journal of Analytical and Applied Pyrolysis)
Source: Journal of Analytical and Applied Pyrolysis - February 13, 2020 Category: Chemistry Source Type: research

Influence of Temperature and Time on Initial Pyrolysis of Cellulose and Xylan
In this study, possible reaction routes during biomass primary pyrolysis are also suggested based on the product distribution from the thermal decomposition of cellulose and xylan. (Source: Journal of Analytical and Applied Pyrolysis)
Source: Journal of Analytical and Applied Pyrolysis - February 8, 2020 Category: Chemistry Source Type: research

Impact of Feedstock Composition on Pyrolysis of Low-Cost, Protein- and Lignin-Rich Biomass: A Review
Publication date: Available online 3 February 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): Feng Cheng, Hengameh Bayat, Umakanta Jena, Catherine E. BrewerAbstractBio-energy is a major component of the global renewable energy market due to the low requirement for energy infrastructure modification and the high bio-energy productivity. Bio-ethanol production from sugar-rich biomass, biodiesel production from lipid-rich biomass, and biogas production from volatile-matter-dense feedstock have been commercialized. A substantial fraction of biomass waste, however, is still discarded due to high processing cos...
Source: Journal of Analytical and Applied Pyrolysis - February 4, 2020 Category: Chemistry Source Type: research

Thermogravimetric-mass spectrometric characterization of thermal decomposition of lignite with attention to the evolutions of small molecular weight oxygenates
Publication date: Available online 31 January 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): Haibo Yan, Feng Mao, Jie WangAbstractThermogravimetry coupled with electron impact mass spectrometry (TG-EI MS) was used to investigate the evolutions of gases and small molecular weight oxygenates during the pyrolysis of a raw lignite and a potassium (K)-impregnated lignite. By clarifying the effects of ionization on the fragmentations of various compounds, it was found that a low ionizing energy of 20 eV was better for detecting oxygenates. The study further proposed a unique approach of the installment ...
Source: Journal of Analytical and Applied Pyrolysis - February 1, 2020 Category: Chemistry Source Type: research

Flash Vacuum Pyrolysis of Acetylenic Esters: A Mechanistic Study
Publication date: Available online 30 January 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): Nouria A. Al-Awadi, Asaad S. Mohamed, Osama M. Habib, Fatma H. Al-Awadhi, Nader A. Al-Jalal, Yehia A. IbrahimAbstractProducts from flash vacuum pyrolysis of eleven acetylenic esters are reported in this study. The mechanism of their pyrolysis is proposed based on the products isolated. These reveal a combination of two main mechanistic approaches. Esters with β-hydrogens favor a retro-ene reaction via a six-membered transition state, the absence of such β-hydrogen leads to a carbene intermediate followe...
Source: Journal of Analytical and Applied Pyrolysis - January 30, 2020 Category: Chemistry Source Type: research

Low-pressure Two-stage Catalytic Hydropyrolysis of Lignin and Lignin-derived Phenolic Monomers using Zeolite-based Bifunctional Catalysts
In this study, reaction pathways of lignin-derived pyrolysis vapor during catalytic hydropyrolysis were further studied using phenol, guaiacol, and syringol as the model compounds. Results suggest that demethoxylation followed by the hydrodeoxygenation of methoxyl radicals and subsequent alkylation of the phenolic ring to produce cresol, and dimethyl phenol as intermediates prior to the intermediate phenolics were further hydrodeoxygenated to produce benzene and alkylated benzene. MoO3/ZSM-5 showed strong ability for both demethoxylation and hydrodeoxygenation. In comparison, the ability of Ni/ZSM-5 for phenolic-hydroxyl r...
Source: Journal of Analytical and Applied Pyrolysis - January 30, 2020 Category: Chemistry Source Type: research

Elucidation of the decomposition reactions of low-fluorine YBa2Cu3O7-x precursors during film pyrolysis
Publication date: Available online 30 January 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): L. Piperno, S. Rasi, S. De Santis, A. Masi, A. Santoni, A. Mancini, A. Angrisani Armenio, V. Pinto, J. Farjas, G. Sotgiu, G. CelentanoABSTRACTChemical solution deposition methods such as low-fluorine metal organic decomposition, are nowadays widely employed in the production of YBa2Cu3O7-x superconducting films. The investigation of the chemical reactions that convert the organic precursors into the pyrolysis product is essential for the optimization of the pyrolysis step, and, ultimately, for the comprehension o...
Source: Journal of Analytical and Applied Pyrolysis - January 30, 2020 Category: Chemistry Source Type: research

Effects of added salts on sewage sludge char characteristics and heavy metal behaviors
Publication date: Available online 23 January 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): Tian Tian, Qing-Song LiuAbstractThe pyrolytic conversion of sewage sludge to char is a promising way for its utilization. To explore their effects, inorganic salts containing Ca, Al, chlorine, sulfate and phosphate were added into sewage sludge prior to pyrolysis at 500 °C. The ash content, yield and pH changed depending on salt species. Salt-addition catalyzed the decomposition of organic matters and decreased the contents of C, H, N and S. Some of the intrinsic minerals were lost or converted while new mine...
Source: Journal of Analytical and Applied Pyrolysis - January 24, 2020 Category: Chemistry Source Type: research

Multi-objective optimization of the preparation parameters of the powdered activated coke for SO2 adsorption using response surface methodology
In this study, for the rapid preparation of PAC from pulverized coal, response surface methodology (RSM) based on central composite design (CCD) was used to develop the second order quadratic models of SO2 adsorption capacity and burn-off. Analysis of variance (ANOVA) was used to determine the effective parameters of the two models, and to explain the accuracy and fitness of them. In addition, the 3D response surface plots illustrated the influencing rules of the variables and their interactions. Further, multi-objective optimization was performed to maximize SO2 adsorption capacity and minimize burn-off using the desirabi...
Source: Journal of Analytical and Applied Pyrolysis - January 22, 2020 Category: Chemistry Source Type: research

Improving the steam-cracking efficiency of naphtha feedstocks by mixed/separate processing
This study aims at evaluation of the potential yield improvement, which could be obtained by separate steam-cracking of light and heavy sub-streams using tailored process parameters for each of the sub-streams. Laboratory pyrolysis reactor was used for both separate and blend processing of the naphtha feedstocks in the temperature range of 760-810 C, and different blending ratios. At maximum temperature, pyrolysis of light naphtha provides ethylene yield 24.1 wt. %, while only 13.6 wt. % of ethylene was obtained from heavy naphtha. Both, ethylene and propylene yield express decreasing trend with increasing co...
Source: Journal of Analytical and Applied Pyrolysis - January 20, 2020 Category: Chemistry Source Type: research

Changes in wood smoke volatile composition by manipulating the smoke generation conditions
The objective of this study was to characterize the volatile organic compounds (VOCs) in Kānuka (Kunzea ericoides) wood smoke. Smoke was generated at four temperatures (180-480 °C) under either air or nitrogen using a lab-scale smoke generator. VOCs were extracted in-line by stir bar sorptive extraction (SBSE) and analyzed by gas chromatography mass spectrometry (GC-MS). More than three hundred compounds were detected, of which phenols were the dominant class, followed by ketones and aldehydes. Temperature had a greater impact than either air or nitrogen on the VOC profile, however some large compound specific ...
Source: Journal of Analytical and Applied Pyrolysis - January 17, 2020 Category: Chemistry Source Type: research

Effects of NaOH on the catalytic pyrolysis of lignin/HZSM-5 to prepare aromatic hydrocarbons
Publication date: Available online 16 January 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): Wu Jilai, Guozhang Chang, Xiao Li, Jinshuai Li, Qingjie GuoAbstractThe pyrolysis of alkali lignin in black liquor to prepare bio-chemical is attracting increasing attention. In addition to alkali lignin, black liquor also contains a large amount of sodium salts (e.g., NaOH and Na2CO3). In the present study, the fast pyrolysis of lignin was carried out in a fixed bed reactor. The effect of NaOH on the preparation of aromatic hydrocarbons by catalytic pyrolysis of lignin/HZSM-5 was investigated; the effect of pyrol...
Source: Journal of Analytical and Applied Pyrolysis - January 17, 2020 Category: Chemistry Source Type: research

Enhanced hydrogenation of aromatic rings and hydrocracking of >CarO bridged bonds in the extraction residue from Piliqing subbituminous coal over a magnetic difunctional solid superbase
Publication date: Available online 21 September 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Mei-Ling Xu, Xian-Yong Wei, Qi-Cong Wu, Yun-Peng Zhao, Feng-Hai Li, Guang-Hui Liu, Fang-Jing Liu, Zhi-Min Zong, Min Zhang, Sheng Li, Xing Fan, Wei Zhao, Feng-Yun Ma, Wen-Long Mo, Jing-Mei LiuAbstractNi-Mg2Si/attapulgite powder (AP) was prepared by thermally decomposing nickel tetracarbonyl onto the as-synthesized Mg2Si/AP by impregnating Mg2Si onto AP in CCl4. Its catalytic performance was evaluated by the catalytic hydroconversion (CHC) of oxydibenzene (ODB) in n-hexane under different reaction conditions. Bot...
Source: Journal of Analytical and Applied Pyrolysis - January 15, 2020 Category: Chemistry Source Type: research

Demonstration of Catalytic Properties of De-inking Sludge Char as a Carbon Based Sacrificial Catalyst
Publication date: Available online 13 January 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): Antzela Fivga, Hessam Jahangiri, Muhammad Asif Bashir, Artur J. Majewski, Andreas Hornung, Miloud OuadiAbstractDe-inking sludge (DIS) is generated as a waste stream from secondary fibre paper mills during the de-inking stage of the paper pulping process; in order to ensure end of waste to landfill an alternative valorisation route is required for this waste. At the same time, an inexpensive sacrificial catalyst is essential to achieve the techno-economic feasibility of biomass gasification and pyrolysis. The pres...
Source: Journal of Analytical and Applied Pyrolysis - January 14, 2020 Category: Chemistry Source Type: research

Study on carbon nanotubes and activated carbon hybrids by pyrolysis of coal
Publication date: Available online 25 October 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Xuemei Lv, Tiankai Zhang, Yunhuan Luo, Yongfa Zhang, Ying Wang, Guojie ZhangAbstractCarbon nanotubes (CNTs) and activated carbon (AC) hybrids were obtained by co-pyrolysis of potassium hydroxide and bituminous coal. Scanning electron microscopy (SEM), thermogravimetric analysis (TGA), Raman spectroscopy, X-ray Diffraction (XRD), and nitrogen adsorption measurements were used to investigate the characteristics of the samples and the effects of the final pyrolysis temperature and time on the structure of the carbon...
Source: Journal of Analytical and Applied Pyrolysis - January 10, 2020 Category: Chemistry Source Type: research

Pyrolysis Behavior of Hydrochar from Hydrothermal Carbonization of Pinewood Sawdust
Publication date: Available online 9 January 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): Jiawe Li, Peitao Zhao, Tian Li, Meng Lei, Weijie Yan, Shifu GeAbstractThis work intends to reveal the pyrolysis behavior of hydrochar from hydrothermal carbonization (HTC) of pinewood sawdust. The elemental analysis and pyrolysis test were performed to study the effect of HTC on hydrochar performance. The elemental analysis indicates that the fuel properties could be highly upgraded by the HTC process. Compared with raw biomass (48.10% and 19.12 MJ/kg), the carbon content and heating value was improved to 69.05% a...
Source: Journal of Analytical and Applied Pyrolysis - January 10, 2020 Category: Chemistry Source Type: research

Pyrolysis behavior of xylan-based hemicellulose in a fixed bed reactor
Publication date: Available online 8 January 2020Source: Journal of Analytical and Applied PyrolysisAuthor(s): Zixiang Gao, Ning Li, Yiqing Wang, Weisheng Niu, Weiming YiAbstractInvestigation on the biomass components pyrolysis behaviors in a lab-scale reactor is a necessary step before its industrialization due to the poor transportability of the findings obtained from the micro-scale pyrolyzer which often neglects the heat and mass transfer effect. In present study, the pyrolysis behavior of xylan-based hemicellulose in a fixed bed reactor was investigated. The residue evolution and bio-oil composition of xylan, xylose, ...
Source: Journal of Analytical and Applied Pyrolysis - January 8, 2020 Category: Chemistry Source Type: research

Investigation of Hot Char Catalytic Role in the Pyrolysis of Waste Tires in a Two-step Process
This study pursues the valorization of waste tires by pyrolysis using a different approach for tire parts, specifically, the tire tread rubber and side wall rubber. Tire tread rubber was used to produce hot char with the purpose of using it as cracking catalyst. Side wall rubber was valorized by pyrolysis and online catalytic pyrolysis over tire tread rubber derived hot char in two fixed bed reactor. This work aims to improve the quality of pyrolysis products using tire tread rubber derived hot char as catalyst. The thermal decomposition behavior and products characteristics were tested by means of TG-FTIR, GC, GC-MS, nitr...
Source: Journal of Analytical and Applied Pyrolysis - December 31, 2019 Category: Chemistry Source Type: research

Analytical Fast Pyrolysis of Nitrogen-Rich Mosquito Species via Pyrolysis-FTIR and Pyrolysis-GC/MS
This study presents a thorough thermal analysis of the dead remains of mosquitoes, in order to unravel the composition of vapors evolved from the bug zappers decimating them. Analytical pyrolysis-gas chromatograph/mass spectrometry (Py-GC/MS) and pyrolysis-Fourier transform infrared (Py-FTIR) spectrometric techniques were used to understand the pyrolysate composition and their time evolution from mosquitoes. Thermogravimetric mass loss data obtained at different heating rates (5–30 °C min-1) were used to determine the variation of apparent activation energy with conversion using isoconversional methods of ...
Source: Journal of Analytical and Applied Pyrolysis - December 30, 2019 Category: Chemistry Source Type: research

Experiments and modeling of octanoic acid pyrolysis in a plug flow reactor
Publication date: Available online 27 December 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Julien Gornay, Pierre-Alexandre Glaude, Francis Billaud, Lucie ConiglioAbstractPyrolysis of carboxylic acids plays a key role in various industrial applications (production of bio-energy vectors from waste cooking oil reforming or of biosourced chemicals from lignocellulosic biomass pyrolysis, or even combustion of ethyl biodiesel). In this work, pyrolysis of octanoic acid selected as departure model compound was carried out in a plug flow reactor. Profiles of the reactant, stable intermediates, and final produc...
Source: Journal of Analytical and Applied Pyrolysis - December 29, 2019 Category: Chemistry Source Type: research

Editorial Board
Publication date: January 2020Source: Journal of Analytical and Applied Pyrolysis, Volume 145Author(s): (Source: Journal of Analytical and Applied Pyrolysis)
Source: Journal of Analytical and Applied Pyrolysis - December 26, 2019 Category: Chemistry Source Type: research

The effect of moisture on hydrocarbon-based solvent liquefaction of pine, cellulose and lignin
Publication date: Available online 23 December 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Martin R. Haverly, Arpa Ghosh, Robert C. BrownAbstractIn this paper we examined the effect of moisture on the solvent liquefaction of loblolly pine, cellulose, and lignin in tetralin at 280 °C and pressures ranging from 15 to 70 bar. Solvent liquefaction experiments were conducted in a quasi-batch reactor capable of continuous pressure control and external vapor condensation. Moisture was varied by the controlled addition of de-ionized water. Control over the system pressure subsequently impact...
Source: Journal of Analytical and Applied Pyrolysis - December 24, 2019 Category: Chemistry Source Type: research

Characteristics of low temperature co-current oxidizing pyrolysis of Huadian oil shale
Publication date: Available online 17 December 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Wei Guo, Qinchuan Yang, Youhong Sun, Shaotao Xu, Shijie Kang, Cheng Lai, Mingyi GuoAbstractThe co-current oxidizing pyrolysis behavior of Huadian oil shale with pure oxygen at low temperature was demonstrated in this study for the first time. The characteristics of semi-coke and shale oil obtained under various pyrolysis parameters have been investigated to further clarify the mechanism of co-current oxidizing pyrolysis of oil shale. The results show that high oil recovery of 16.76% (about 90% compared to Fische...
Source: Journal of Analytical and Applied Pyrolysis - December 18, 2019 Category: Chemistry Source Type: research

Pyrolysis profile of a rectangular kiln – natural scientific investigation of a traditional charcoal production process
Publication date: Available online 16 December 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): J. Tintner, C. Preimesberger, C. Pfeifer, J. Theiner, F. Ottner, K. Wriessnig, M. Puchberger, E. SmidtAbstractRectangular kilns are a traditional technique in charcoal production in the second half of Modern Period in Middle Europe. Only in Austria there is still an active tradition that is of broader interest in an archaeological context. One of these kilns in Rohr im Gebirge, Lower Austria, was equipped with thermocouples to record pyrolysis temperature during the whole process. The removal of ready charcoal w...
Source: Journal of Analytical and Applied Pyrolysis - December 17, 2019 Category: Chemistry Source Type: research

Fast pyrolysis with fractional condensation of lignin-rich digested stillage from second-generation bioethanol production
Publication date: Available online 14 December 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Neil Priharto, Frederik Ronsse, Güray Yildiz, Hero Jan Heeres, Peter J. Deuss, Wolter PrinsAbstractPoplar-derived lignin-rich feedstock (i.e. stillage) obtained from bioethanol production was subjected to fast pyrolysis in a modified fluidised bed reactor at 430 °C, 480 °C, and 530 °C. The stillage was pretreated by enzymatic digestion prior to fast pyrolysis. Pyrolysis vapors were collected by fractional condensation to separate the heavy organic and aqueous phase liquids. The intention of this...
Source: Journal of Analytical and Applied Pyrolysis - December 15, 2019 Category: Chemistry Source Type: research

Catalytic cracking of polypropylene by using Fe-SBA-15 synthesized in an acid-free medium for production of light hydrocarbon oils
Publication date: Available online 14 December 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Yuzheng Zhao, Wei Wang, Xiaodong Jing, Xuzhong Gong, Hao Wen, Yanxi DengAbstractCatalytic cracking recovery of polyolefins is a research hotspot at present. The addition of catalyst also increases the operation cost. So, the product selectivity and stability of catalysts are very important. In this paper, the synthesis and properties of ordered mesoporous Fe-SBA-15and their applications in PP catalytic cracking have been studied. The ordered mesoporous Fe-SBA-15 has been successfully synthesized by the ac...
Source: Journal of Analytical and Applied Pyrolysis - December 15, 2019 Category: Chemistry Source Type: research

Temperature-dependent pyrolysis behavior of polyurethane elastomers with different hard- and soft-segment compositions
Publication date: Available online 13 December 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Yuya Nishiyama, Shogo Kumagai, Suguru Motokucho, Tomohito Kameda, Yuko Saito, Atsushi Watanabe, Hisayuki Nakatani, Toshiaki YoshiokaAbstractThe pyrolysis behaviors of seven kinds of polyurethane elastomers (PUEs) with different ratios between the hard segment (HS) and soft segment (SS) were investigated for both fast pyrolysis (300, 350, 450, 850 °C) and slow pyrolysis at the heating rate of 10 °C min–1 by thermogravimetric analysis (TG), pyrolysis-gas chromatography/mass spect...
Source: Journal of Analytical and Applied Pyrolysis - December 13, 2019 Category: Chemistry Source Type: research

Pyrolysis-Catalytic Hydrogenation of Cellulose-Hemicellulose-Lignin and Biomass Agricultural Wastes for Synthetic Natural Gas Production
Publication date: Available online 9 December 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Mohammad M. Jaffar, Mohamad A. Nahil, Paul T. WilliamsAbstractThe production of methane from the biopolymers; cellulose, hemicellulose and lignin, and also four different agricultural waste biomass samples was investigated using a two-stage pyrolysis-catalytic hydrogenation reactor. The biomass agricultural waste samples were rice straw, willow, sugar cane bagasse and ugu plant. Pyrolysis of the biomass samples was carried out in a 1st stage reactor while the catalytic hydrogenation was carried out the 2nd stage ...
Source: Journal of Analytical and Applied Pyrolysis - December 10, 2019 Category: Chemistry Source Type: research

Acidic ionic liquid catalyzed liquefactions of corn cobs and switchgrass in acetone: Analysis of bio-oils using LC-MS and GC-MS
Publication date: Available online 9 December 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Ananda S. Amarasekara, Cristian D. Gutierrez ReyesAbstractThe liquefaction of corn cobs and switchgrass was studied using 1-(3-propylsulfonic)-3-methylimidazolium chloride and 1-(4-butylsulfonic)-3-methylimidazolium chloride Brønsted acidic ionic liquids as catalysts in acetone at 120 °C for 5 h. The highest biomass conversions to liquefied bio-oil for corn cobs and switchgrass are 63.4 ± 0.9 and 56.4 ± 0.9 % (w/w) respectively. The liquefied products were fractionated to polar and non-po...
Source: Journal of Analytical and Applied Pyrolysis - December 10, 2019 Category: Chemistry Source Type: research

Production of an upgraded bio-oil with minimal water content by catalytic pyrolysis: Optimisation and comparison of CaO and MgO performances
Publication date: Available online 9 December 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Farai Chireshe, François-Xavier Collard, Johann F. GörgensAbstractPyrolysis of forest residues using CaO and MgO catalysts was carried out in an induction heating reactor, to produce an upgraded bio-oil with increased higher heating value (HHV). Optimisation with central composite design (CCD) included temperature (444-656 °C) and catalyst concentration (1.7-58.3 wt.%). A fractional condensation system with the first condenser heated to 40 °C was used to collect an organic...
Source: Journal of Analytical and Applied Pyrolysis - December 10, 2019 Category: Chemistry Source Type: research

Catalytic pyrolysis of wasted fishing net over calcined scallop shells: Analytical Py-GC/MS study
Publication date: Available online 6 December 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Nichaboon Chaihad, Irwan Kurnia, Akihiro Yoshida, Chuichi Watanabe, Koji Tei, Prasert Reubroycharoen, Yutaka Kasai, Abuliti Abudula, Guoqing GuanAbstractActivity of calcined scallop shell (CSS) for the catalytic pyrolysis of wasted fishing net (WFN) to the ε-caprolactam monomer was investigated in a micro-furnace type temperature programmable pyrolyzer combined with a gas chromatography/mass spectrometry (Py-GC/MS) analysis system. Evolved gas analysis (EGA/MS) indicates that the peak temperature for the ...
Source: Journal of Analytical and Applied Pyrolysis - December 7, 2019 Category: Chemistry Source Type: research

Identification of organic materials in historical stringed instruments by off-line analytical pyrolysis solid-phase microextraction with on-fiber silylation and gas chromatography-mass spectrometry
Publication date: Available online 18 November 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Lisa Kasprzok, Daniele Fabbri, Alessandro G. Rombolà, Tommaso Rovetta, Marco MalagodiAbstractHistorical stringed musical instruments are a unique class of cultural heritage objects. Crafted during the 16th-18th centuries, these instruments remain somewhat mysterious. Due to the absence of written historical documents of traditional varnish recipes, their chemical characterization is the only way to recover the lost ‘secret’ of the Cremonese stringed instrument maker Antonio Stradivari and his ...
Source: Journal of Analytical and Applied Pyrolysis - December 7, 2019 Category: Chemistry Source Type: research

Pyrolytic Oils from Amphipterygium Adstringens Bark Inhibit IL-8 Production of IL-17-stimulated HaCaT Keratinocytes
Publication date: Available online 5 December 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Roberto Esquivel-García, Michael Ayiania, Nehal Abu-Lail, Joel E. López-Meza, Rosa E. del Río, Manuel García-Pérez, Alejandra Ochoa-Zarzosa, Martha-Estrella García-PérezAbstractPyrolytic products have been historically used as a therapeutic treatment for psoriasis, a dermatological inflammatory disease. However, little is known about the mechanisms involved in their pharmacological activity. The main goals of this work were to characterize pyrolytic fractions deriv...
Source: Journal of Analytical and Applied Pyrolysis - December 7, 2019 Category: Chemistry Source Type: research

Pyrolysate composition and silylation efficiency in analytical pyrolysis of glucans as a function of pyrolysis time
Publication date: Available online 30 November 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Marco Mattonai, Erika RibechiniAbstractThe pyrolytic behaviour of two oligosaccharides – cellobiose and cellohexose – was studied using reactive pyrolysis-GC/MS with in situ hexamethyldisilazane derivatisation. Pyrolysis was conducted in a sealed vessel at various times ranging from 0.2 to 60 min. Semi-quantitative calculations were carried out on integrated peak areas to obtain information on derivatisation efficiency and composition of the pyrolysate as a function of pyrolysis time. The resu...
Source: Journal of Analytical and Applied Pyrolysis - December 1, 2019 Category: Chemistry Source Type: research

Catalytic conversion of hard plastics to valuable carbon nanotubes
Publication date: Available online 30 November 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Xiang Gou, Dong Zhao, Chunfei WuAbstractThe management of waste hard plastics is a big challenge in the world. Conventional pyrolysis and gasification of hard plastics have been extensively reported. However, producing high values carbon nanotubes as the main product or byproduct from hard plastics has been rarely reported. In this work, we studied and reported this work by using pyrolysis of phenolic formaldehyde resin producing high value carbon nanotubes to promote the economic competitiveness of the technolo...
Source: Journal of Analytical and Applied Pyrolysis - December 1, 2019 Category: Chemistry Source Type: research

Pitch derived graphene oxides: characterization and effect on pyrolysis and carbonization of coal tar pitch
Publication date: Available online 29 November 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Shizhe Liu, Jilai Xue, Xuan Liu, Hao Chen, Xiang LiAbstractIn this work, the coal tar pitch (CTP) is modified by the pitch derived graphene oxide (pGO) prepared from the same CTP using ZnO template and in-situ KOH activation technique. The results indicate that the prepared pGO has the oxygen-containing functional groups with a high specific surface area up to 1937 m2/g. The mass ratio of ZnO to pitch is crucial to adjust the surface area of pGO. The pGO modified CTP have more condensed structures of pyro...
Source: Journal of Analytical and Applied Pyrolysis - December 1, 2019 Category: Chemistry Source Type: research

Catalytic pyrolysis of Napier grass with nickel-copper core-shell bi-functional catalyst
Publication date: Available online 29 November 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Sang Dinh Ngo, Thi Tuong Vi Tran, Suwadee Kongparakul, Prasert Reubroycharoen, Pinit Kidkhuntod, Narong Chanlek, Jing Wang, Guoqing Guan, Chanatip SamartAbstractNickel-copper (Ni-Cu) core-shell catalysts supported on phosphorus-modified carbon microspheres (mCMs) were prepared at three Ni/Cu mass ratios, and applied to the catalytic pyrolysis of Napier grass (Pennisetum purpureum) under atmospheric pressure. The catalytic pyrolysis was carried out inside a custom-built one-shot two-stage fixed-bed reactor. The c...
Source: Journal of Analytical and Applied Pyrolysis - November 29, 2019 Category: Chemistry Source Type: research

In-situ decoupling effect of H2O on the whole process of coal gasification in MFBRA and TG-FTIR-MS
Publication date: Available online 27 November 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Dongdong Feng, Dawei Guo, Yijun Zhao, Yu Zhang, Kai Geng, Guozhang Chang, Shaozeng SunAbstractO2/H2O oxy-fuel combustion, as one of the most promising combustion technologies for CO2 reduction, has become a hot spot around the world. In oxyfuel combustion, H2O gasification has an important effect on the overall reaction process. This paper used Chinese Shenhua coal as raw material to decouple the effect of H2O on the whole process of raw coal-H2O gasification reaction. At 800 °C in 15 vol.% H2O, the c...
Source: Journal of Analytical and Applied Pyrolysis - November 29, 2019 Category: Chemistry Source Type: research

Effect of decomposition of oxygen-containing structures on the conversion of lignite in the presence of hydrogen donor solvent
Publication date: Available online 24 November 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Runze Zhao, Youqing Wu, Sheng Huang, Shiyong Wu, Jinsheng GaoAbstractIn this paper, pyrolysis behaviors of oxygen-containing structures of Xilinhaote (XLHT) lignite in hydrogen donor solvent (HDS) were investigated to reveal the effect of HDS on the pyrolysis sequence characteristics of XLHT and the difference of the pyrolysis behaviors of oxygen-containing structures in the presence or absence of HDS. Results showed that coal conversion was closely associated to the decomposition of oxygen-containing structures...
Source: Journal of Analytical and Applied Pyrolysis - November 26, 2019 Category: Chemistry Source Type: research

Towards understanding the interactions between mild liquefaction solid product and Hami sub-bituminous coal during their co-pyrolysis
Publication date: Available online 22 November 2019Source: Journal of Analytical and Applied PyrolysisAuthor(s): Zhihao Feng, Zongqing Bai, Hongyan Zheng, Zhenxing Guo, Lingxue Kong, Jin Bai, Wen LiAbstractCo-pyrolysis behaviors of MLS with Hami sub-bituminous coal (HM) were examined by a thermogravimetric analyzer coupled with a mass spectrometer and the kinetic characteristics were interpreted with simplified distributed activation energy model, aiming at understanding the co-pyrolysis characteristics and interactions between MLS and coal, and providing some useful guidance for the efficient utilize of MLS. Two special c...
Source: Journal of Analytical and Applied Pyrolysis - November 23, 2019 Category: Chemistry Source Type: research