Insights into membrane fouling implicated by physical adsorption of soluble microbial products onto D3520 resin
In this study, membrane fouling caused by membrane rejection and adsorption were study. Filtration tests indicated that membrane rejected SMP, causing membrane pore blockage and then forming a gel layer. Batch adsorption experiments showed that adsorption of SMP onto PVDF membrane was a spontaneous physical adsorption process.Meanwhile, the absolute value ΔG of adsorption of SMP onto D3520 was higher than that of adsorption of SMP onto PVDF membrane, so SMP preferentially adsorbed onto D3520 rather than PVDF membrane. Thus, the effect of ARs on reducing the SMP concentration was investigated. It was found that, 6 g...
Source: Chinese Journal of Chemical Engineering - August 7, 2019 Category: Chemistry Source Type: research

A study on periodic boundary condition in direct numerical simulation for gas–solid flow
In this study, a novel two-region periodic boundary condition (TPBC) is presented to remedy this problem, with the flow driven in the region with body force and freely evolving in the other region. With simulation cases for simple circulating fluidized bed risers, the validity and advantages of TPBC are demonstrated with more reasonable heterogeneity of the particle distribution as compared to the corresponding case with FPBC.Graphical abstract (Source: Chinese Journal of Chemical Engineering)
Source: Chinese Journal of Chemical Engineering - August 4, 2019 Category: Chemistry Source Type: research

Improving physicochemical characteristics and anaerobic digestion performance of rice straw via ammonia pretreatment at varying concentrations and moisture levels
Publication date: Available online 31 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Hairong Yuan, Ruolin Guan, Akiber Chufo Wachemo, Yatian Zhang, Xiaoyu Zuo, Xiujin LiAbstractRice straw physicochemical characteristics and anaerobic digestion (AD) performance via ammonia pretreatment at varying ammonia concentrations (2%, 4%, and 6%) and moisture contents (30%, 50%, 70%, and 90%) under a mild condition were investigated. The results showed that the ammonia pretreatment effectively damaged the rice straw structure, increased the soluble organics concentration, and improved rice straw hydrolysis and AD p...
Source: Chinese Journal of Chemical Engineering - August 1, 2019 Category: Chemistry Source Type: research

Influence of bio-inspired flow channel designs on the performance of a PEM fuel cell
Publication date: Available online 31 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Srinivasa Reddy Badduri, G. Naga Srinivasulu, S. Srinivasa RaoAbstractPerformance of the Proton exchange Membrane Fuel Cell (PEMFC) is appreciably affected by the channel geometry. The branching structure of a plant leaf and human lung have efficient network to distribute the nutrients in the respective systems. The same nutrient transport system can be mimicked in the flow channel design of a PEMFC, to aid even reactant distribution and better water management. In this work, the effect of bio-inspired flow field design...
Source: Chinese Journal of Chemical Engineering - August 1, 2019 Category: Chemistry Source Type: research

Performance comparison of heat exchangers using sextant/trisection helical baffles and segmental ones
Publication date: Available online 31 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Chen Yaping, Tang Hongling, Wu Jiafeng, Gu Huaduo, Yang ShifanAbstractThe shell side flow fields of both sextant and trisection helical baffle heat exchangers are presented on meridian and multilayer hexagon slices. It verifies that the performance of sextant schemes is better than those of the other kinds of helical baffle heat exchangers. The main mechanisms are due to the restricted leakage flow in the minimized gaps with increased baffle number and by one row of tubes dampens the leakage flow in the circumferential ...
Source: Chinese Journal of Chemical Engineering - August 1, 2019 Category: Chemistry Source Type: research

Development of index system for inherently safer process design using an integrated approach
This study developed a safety index to evaluate existing technologies for their safety levels and guide inherently safer design. The Integrated Risk-based Safety Index (IRSI) was developed based on a comprehensive review of petrochemical processes, incident cases from Sinopec and US Chemical Safety Board, and existing safety index systems. The IRSI included all major hazards, including fire, explosion, toxic release, dust explosion, physical explosion, and runaway. Also, the integrated life cycle approach considered chemical hazards, equipment failure rates and safety measures in this risk-based index. Advanced modeling te...
Source: Chinese Journal of Chemical Engineering - July 31, 2019 Category: Chemistry Source Type: research

Transformation of phthalic acid diesters in an anaerobic/anoxic/oxic leachate treatment process
Publication date: Available online 30 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Qun Wang, Lanhui Jiang, Chengran Fang, Hongzhi Mao, Haifeng ZhuangAbstractTransformations of di-n-butyl phthalate (DBP) and di(2-ethylhexyl) phthalate (DEHP) have been investigated in anaerobic/anoxic/oxic (A/A/O) leachate treatment processes. Although the DBP removal processes are different when the DBP initial concentration is different, the overall system DBP removal efficiencies are high (> 94%). DEHP is much more difficult to remove than DBP. The removal efficiency of DEHP is approximately 75–78%. The...
Source: Chinese Journal of Chemical Engineering - July 31, 2019 Category: Chemistry Source Type: research

Editorial Board
Publication date: June 2019Source: Chinese Journal of Chemical Engineering, Volume 27, Issue 6Author(s): (Source: Chinese Journal of Chemical Engineering)
Source: Chinese Journal of Chemical Engineering - July 27, 2019 Category: Chemistry Source Type: research

Magnetically responsive porous materials for efficient adsorption and desorption processes
Publication date: June 2019Source: Chinese Journal of Chemical Engineering, Volume 27, Issue 6Author(s): Peng Tan, Yao Jiang, Xiaoqin Liu, Linbing SunAbstractMagnetically responsive porous materials possess unique properties in adsorption processes such as magnetic-induced separation and heat generation in alternating magnetic fields, which greatly facilitates recycling procedures, favors long-term operation, and improves desorption rate, making conventional adsorption processes highly efficient. With increasing interest in magnetic adsorbents, great progress has been made in designing and understanding of magnetically res...
Source: Chinese Journal of Chemical Engineering - July 27, 2019 Category: Chemistry Source Type: research

Parametric optimization of packed bed for activated coal Fly ash waste heat recovery using CFD techniques
Publication date: Available online 26 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Kai Liang, Saimeng Jin, Hengzhi Chen, Jingzheng Ren, Weifeng Shen, Shun'an WeiAbstractCoal fly ash is an industrial solid waste generated from coal preparation during the processing and cleaning of coal for electric power generation. Comprehensive investigation on the reutilization of waste heat of activated coal fly ash is of great economic significance. The method of recovering the waste heat, proposed in this study, is the transfer of heat from activated coal fly ash to gas with the movement of air using the packed b...
Source: Chinese Journal of Chemical Engineering - July 27, 2019 Category: Chemistry Source Type: research

A comprehensive study of two-phase flow and heat transfer of water/ag nanofluid in an elliptical curved minichannel
Publication date: Available online 24 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Sajad Mir, Omid Ali Akbari, Davood Toghraie, Ghanbarali Sheikhzadeh, Ali Marzban, Saeid Mir, Pouyan TalebizadehsardariAbstractIn this research, laminar flow and heat transfer of two-phase water/Ag nanofluid with 0–6% volume fraction of nanoparticles at Re = 150–700 in a curved geometry are simulated using finite volume method. Studied geometry is an elliptical curved minichannel with curvature angle of 180o. Forced and natural flow of two-phase nanofluid is simulated at Gr = 15,000, 35,000 and 75,000...
Source: Chinese Journal of Chemical Engineering - July 25, 2019 Category: Chemistry Source Type: research

A DFT and TD-DFT Study on Electronic Structures and UV-spectra Properties of Octaethyl-porphyrin with Different Central Metals (Ni, V, Cu, Co)
Publication date: Available online 24 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Xiaoqin Wang, Shiyi Li, Liang Zhao, Chunming Xu, Jinsen GaoAbstractIn this work, the octaethyl-porphyrins with different central metal (M-OEP, M = Ni, VO, Cu, Co) were used to investigate the ground-state molecular structure, electron distribution and UV-spectra properties on molecular level by Density functional theory (DFT). The results showed that the calculation structure parameters of metalloporphyrins agreed well with the experimental value. According to the Natural Bond Orbital (NBO) analysis, the charg...
Source: Chinese Journal of Chemical Engineering - July 25, 2019 Category: Chemistry Source Type: research

Remediation of diesel oil contaminated sand by micro-emulsion
Publication date: Available online 19 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Yinglu Gu, Shuang Chen, Hui’e Liu, Yutong Liu, Long WangAbstractMicro-emulsion has unique advantages in repairing diesel oil contaminated sand due to its low interfacial tension and strong solubility. By Winsor phase diagram, it was found that with the increase of salinity, the phase of micro-emulsion transformed from Winsor I to Winsor III to Winsor II. Under cryogenic electron microscope, it was observed that Winsor I was O/W type, Winsor II was W/O type, and Winsor III type was bi-continuous type. The effect of...
Source: Chinese Journal of Chemical Engineering - July 19, 2019 Category: Chemistry Source Type: research

Lysozyme adsorption to cation exchanger derivatized by sequential modification of poly(ethylenimine)-Sepharose with succinic anhydride and ethanolamine: Effect of pH and ionic strength
Publication date: Available online 17 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Yangyang Zhao, Xianxiu Li, Linling Yu, Xiaoyan Dong, Yan SunAbstractIn our previous work, a series of polyethylenimine (PEI)-derived cation exchangers were synthesized using PEI-grafted resin FF-PEI-L740 (ionic capacity, 740 mmol·L−1) as the basic resin to study lysozyme adsorption and chromatographic behavior. It was found that the resin with an ionic capacity of 630 mmol·L−1 (FF-PEI-CR630) possessed high adsorption performance towards lysozyme at 0–100 mmol·L−1 NaCl. ...
Source: Chinese Journal of Chemical Engineering - July 19, 2019 Category: Chemistry Source Type: research

Synthesis and characterization of hybrid graphene nanocoolant for heat transfer dissipation in microchannel heat sinks
Publication date: Available online 18 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): G. Sudha, R. ParthibanAbstractAn attempt is made to examine the effect of hybrid nanocoolant in microchannel heat sink for computer cooling. Two-hybrid coolants with graphene as one of the prime components are synthesized and images of the particles are shown using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Heat transfer Properties like thermal conductivity of the hybrid fluid, specific heat, density, and viscosity are evaluated experimentally and theoretically. The heat transfer char...
Source: Chinese Journal of Chemical Engineering - July 19, 2019 Category: Chemistry Source Type: research

Acid precipitation coupled Electrodialysis to improve separation of chloride and organics in pulping crystallization mother liquor
Publication date: Available online 18 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Zhaoyang Li, Rongzong Li, Zhaoxiang Zhong, Ming Zhou, Min Chen, Weihong XingAbstractInefficient separation of inorganic salts and organic matters in crystallization mother liquor is still a problem to industrial wastewater treatment since the high salinity significantly impedes organic pollutants degradation by oxidation or incineration. In the study, acidification combined electrodialysis (ED) was attempted to effectively separate Cl− ions from organics in concentrate pulping wastewater. Membrane's rejection rate...
Source: Chinese Journal of Chemical Engineering - July 19, 2019 Category: Chemistry Source Type: research

Effect of imidazole based polymer blend electrolytes for dye-sensitized solar cells in energy harvesting window glass applications
Publication date: Available online 15 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): K.M. Manikandan, A. Yelilarasi, S.S. Saravanakumar, P. Senthamaraikannan, Anish Khan, Abdullah M. AsiriAbstractThe exploration of polymer electrolyte in the field of dye sensitized solar cell (DSSC) can contribute to increase the invention of renewable energy applications. In the present work, the influence of imidazole on the poly (vinylidene fluoride) (PVDF)- poly (methyl methacrylate) (PMMA)-Ethylene carbonate (EC)-KI-I2 polymer blend electrolytes have been prepared. The different weight percentage of imidazole added...
Source: Chinese Journal of Chemical Engineering - July 16, 2019 Category: Chemistry Source Type: research

Simulated biomass tar removal mechanism by a quench coupled with ADsorption technology (QCADT)
Publication date: Available online 15 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): XiaoSong Zhang, JiaWei Pan, Liang Wang, HongQi Sun, YueZhao Zhu, HaiJun ChenAbstractTar removal is a bottleneck in the smooth commercialization of biomass gasification technology. Based on introducing adsorption process into Quench Coupled with ABsorption Technology (QCABT) previously proposed by the author's group, Quench Coupled with ADsorption Technology (QCADT) has been developed to narrow this gap. Additionally, benzene and naphthalene, which are more similar to the real tar for containing aromatic ring structures,...
Source: Chinese Journal of Chemical Engineering - July 16, 2019 Category: Chemistry Source Type: research

Decomposition of carbon dioxide hydrate in the samples of natural coal with different degrees of metamorphism
Publication date: Available online 15 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Vyacheslav G. Smirnov, Valeriy V. Dyrdin, Andrey Yu. Manakov, Zinfer R. IsmagilovAbstractMethane and carbon dioxide hydrates are one of the possible forms in which these gases exist in natural coal. In this work, the decomposition of carbon dioxide hydrate in five samples of natural coal differing from each other in metamorphism degree was investigated experimentally. Carbon dioxide hydrate dispersed in coals was sinthesized from water adsorbed in these coals. During a linear temperature rise in an autoclave with the co...
Source: Chinese Journal of Chemical Engineering - July 16, 2019 Category: Chemistry Source Type: research

Nanohybrid membrane in algal-membrane Photoreactor: Microalgae cultivation and wastewater polishing
In this study, Chlorella vulgaris microalgae was cultivated in synthetic wastewater in an A-MPR for ammoniacal-nitrogen and phosphorus recovery and the wastewater was further filtered using Ag/GO-PVDF and com-PVDF membranes to obtain high quality water. Spectrophotometer was used to analyze the chemical oxidation demand (COD), ammoniacal nitrogen (NH3-N) and phosphate (PO43−). The concentration of proteins and carbohydrates were measured using Bradford method and phenol-sulfuric acid method, respectively. The COD of the synthetic wastewater was reduced from 180.5 ± 5.6 ppm to 82 ± 2.6 ppm du...
Source: Chinese Journal of Chemical Engineering - July 16, 2019 Category: Chemistry Source Type: research

Stochastic optimization based on a novel scenario generation method for midstream and downstream petrochemical supply chain
Publication date: Available online 15 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Peixian Zang, Guoming Sun, Yongming Zhao, Yiqing Luo, Xigang YuanAbstractA two-stage mixed integer linear programming model (MILP) incorporating a novel method of stochastic scenario generation was proposed in order to optimize the economic performance of the synergistic combination of midstream and downstream petrochemical supply chain. The uncertainty nature of the problem intrigued the parameter estimation, which was conducted through discretizing the assumed probability distribution of the stochastic parameters. The...
Source: Chinese Journal of Chemical Engineering - July 16, 2019 Category: Chemistry Source Type: research

Potential Use of Nanofiltration Like-Forward Osmosis Membranes for Copper Ion Removal
Publication date: Available online 15 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Wan Nur Ain Shuhada Abdullah, Sirinan Tiandee, Woei-Jye Lau, Farhana Aziz, Ahmad Fauzi IsmailAbstractThe discharge of industrial effluent containing heavy metal ions would cause water pollution if such effluent is not properly treated. In this work, the performance of emerging nanofiltration (NF) like-forward osmosis (FO) membrane was evaluated for its efficiency to remove copper ion from water. Conventionally, copper ion is removed from aqueous solution via adsorption and/or ion-exchange method. The engineered osmosis ...
Source: Chinese Journal of Chemical Engineering - July 16, 2019 Category: Chemistry Source Type: research

Investigation of Liquid − liquid Equilibrium of the Ternary System (Water + 1,6-Diaminohexane + 2-Methyl-1-propanol or 3-Methyl-1-butanol) at Different Temperatures
In this study, the LLE data of ternary system (water + 1,6-diaminohexane + 2-methyl-1-propanol) and (water + 1,6-diaminohexane + 3-methyl-1-butanol) were measured at (293.15, 303.15 and 313.15) K under atmospheric pressure. Reliability of the experimental tie-line data was checked by empirical Hand, Othmer − Tobias and Bachman equations. Distribution coefficient (D) and selectivity (S) were calculated in order to investigate capability of the studied organic solvents for 1,6-diaminohexane extraction. The high values of separation factors demonstrated that 2-methyl-1-propanol and 3-methyl...
Source: Chinese Journal of Chemical Engineering - July 16, 2019 Category: Chemistry Source Type: research

Superior liquid fuel desulfurization through emulsification solvent extraction using polymeric-based eutectic solvents
Publication date: Available online 15 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Farouq S. Mjalli, Walaa S. Ahmed Rahma, Talal Al-Wahaibi, Abdul Aziz Al-HashmiAbstractThe addition of surfactants to solvents results in the formation of well-defined assemblies which contribute to increasing contact area available for mass transfer. In this work, the idea of emulsification solvent extraction was exploited for fuel desulfurization. The extractive desulfurization of two sulfuric compounds was investigated using deep eutectic solvents comprising the quaternary ammonium salt tetrabutylammonium bromide (TBA...
Source: Chinese Journal of Chemical Engineering - July 16, 2019 Category: Chemistry Source Type: research

Interaction of two in-line bubbles of equal size rising in viscous liquid
Publication date: Available online 15 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Zhen Tian, Xi Li, Youwei Cheng, Lijun WangAbstractThe interaction of bubbles is the key to understand gas liquid bubbling flow. Two-dimensional axis-symmetry computational fluid dynamics simulations on the interactive bubbles were performed with VOF method, which was validated by experimental work. It is testified that several different bubble interactive behaviors could be acquired under different conditions. Firstly, for large bubbles (d: 4, 6, 8, 10 mm), the trailing bubble rising velocity and aspect ratio have negat...
Source: Chinese Journal of Chemical Engineering - July 15, 2019 Category: Chemistry Source Type: research

Effective adsorptive denitrogenation from model fuels over Yttrium ion-exchanged Y zeolite
Publication date: Available online 15 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Fuping Tian, Xin Sun, Xinyi Liu, Hongluan Zhang, Jiaxu Liu, Hongchen Guo, Yifu Zhang, Changgong MengAbstractThe adsorption removal of indole and quinoline in octane with and without toluene over zeolites NaY and Yttrium Ion-exchanged Y (YY) using batch adsorption experiments was studied at 25 oC and 1 atm. YY was prepared by treating NaY with Y(NO3)3 solution twice via liquid ion-exchange method. NaY and YY were both characterized by XRD, SEM, N2 adsorption, XRF, NH3-TPD, and pyridine-FTIR techniques. Adsorption isother...
Source: Chinese Journal of Chemical Engineering - July 15, 2019 Category: Chemistry Source Type: research

Influence of temperature and Ca(OH)2 on releasing tar and coal gas during lignite coal pyrolysis and char gasification
Publication date: Available online 15 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Sunel Kumar, Zhihua Wang, Zhang Kang, Jun Xia, Ronald Whiddon, Yong He, Jaffri Gul-e-Rana, Zain Ali Saleh Bairq, Kefa CenAbstractThe yield of tar and syngas has been investigated by catalytic pyrolysis of Pingzhuang lignite (PZL) over Ca(OH)2 catalyst in temperature range of 600 °C-1000 °C in a tube furnace. The results show that the yield of volatile pyrolysis increases and char decreases with rising temperature for both raw and catalyzed Pingzhuang lignite. The hydrogen fraction (H2) increased from 20% to 40% ...
Source: Chinese Journal of Chemical Engineering - July 15, 2019 Category: Chemistry Source Type: research

Effects of Internals on Phase Holdup and Backmixing in a Slightly-Expanded-Bed Reactor with Gas-Liquid Concurrent Upflow
Publication date: Available online 15 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Kang Yu, Weijie Wang, Tao Zhang, Yumei Yong, Chao YangAbstractFive different internals were designed and their effects on phase holdup and backmixing were investigated in a gas-liquid concurrent upflow reactor where the spherical alumina packing particles of three diameters (3.0, 4.5 and 6.0 mm) were slightly expanded under the conditions of varied superficial gas velocities (6.77 × 10-2 ~ 3.61 × 10-1 m·s-1) and superficial liquid velocities (9.47 × 10-4 ~ 2.17 ...
Source: Chinese Journal of Chemical Engineering - July 15, 2019 Category: Chemistry Source Type: research

Spongy acetylenic carbon material prepared by ball milling CaC2 and chlorinated rubber — Its mercury adsorption and electrochemical property
Publication date: Available online 29 May 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Xuebing Xu, Wenfeng Li, Luyan Xia, Yingzhou Lu, Hong Meng, Chunxi LiAbstractDesign and preparation of novel advanced carbon materials with unique architecture and functional groups is of great significance. Herein, a spongy acetylenic carbon material (SACM) was prepared through mechanochemical reaction of CaC2 and chlorinated rubber in a planetary ball mill at ambient temperature. Its composition and structure were characterized, and its electrochemical properties and adsorption performance for Hg2+ were studied. The SAC...
Source: Chinese Journal of Chemical Engineering - July 15, 2019 Category: Chemistry Source Type: research

Advances of Macroalgae Biomass for the Third Generation of Bioethanol Production
Publication date: Available online 13 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Inn Shi Tan, Man Kee Lam, Henry Chee Yew Foo, Steven Lim, Keat Teong LeeAbstractIn recent years, utilization of renewable sources for biofuel production is gaining popularity due to growing greenhouse gases (GHG) emissions which causes global warming. There has been a great effort in exploring alternative feedstock for bioethanol production. In this context, the production of third-generation bioethanol from macroalgae has emerged as an alternative feedstock to food crop-based starch and lignocellulosic biomass. This is...
Source: Chinese Journal of Chemical Engineering - July 15, 2019 Category: Chemistry Source Type: research

Enhancement of Carbon Dioxide Absorption using Nanofluids in Hollow Fiber Membrane Contactor
Publication date: Available online 11 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Zia Ur Rehman, Nayef Ghasem, Mohamed Al-Marzouqi, Nadia AbdullatifAbstractIn this work, CO2 gas was absorbed from a gas mixture in a custom made Polyvinylidene fluoride (PVDF) hollow fiber membrane contactors by using a variety of Methyl Diethanolamine (MDEA) aqueous solutions and nanofluids. An ultrasonic dispersion method was used to prepare nanofluids. SiO2 nanoparticles and carbon nanotubes (CNTs) were dispersed in deionized (DI) water and MDEA without adding any surfactant. The prepared solvents were fed into the t...
Source: Chinese Journal of Chemical Engineering - July 12, 2019 Category: Chemistry Source Type: research

Characterization of nitrogen-containing aromatics in Baiyinhua lignite and its soluble portions from thermal dissolution
Publication date: Available online 10 July 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Yang-Yang Zhang, Xian-Yong Wei, Jing-Hui Lv, Hao Jiang, Fang-Jing Liu, Guang-Hui Liu, Zhi-Min ZongAbstractSoluble portions (SPs) 1–4 (SP1-SP4) were afforded from sequentially dissolution and alkanolyses of Baiyinhua lignite (BL) in cyclohexane, CH3OH, CH3CH2OH, and (CH3)2CHOH at 300 °C. They were analyzed with a gas chromatograph/mass spectrometer and quadrupole exactive orbitrap mass spectrometer (QEOTMS) with an atmosphere pressure chemical ionization source in positive-ion mode, while BL was characterized...
Source: Chinese Journal of Chemical Engineering - July 11, 2019 Category: Chemistry Source Type: research

Editorial Board
Publication date: May 2019Source: Chinese Journal of Chemical Engineering, Volume 27, Issue 5Author(s): (Source: Chinese Journal of Chemical Engineering)
Source: Chinese Journal of Chemical Engineering - June 21, 2019 Category: Chemistry Source Type: research

Highly efficient [C8mim][Cl] ionic liquid accompanied with magnetite nanoparticles and different salts for interfacial tension reduction
Publication date: Available online 4 April 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Sajjad Hashemi, Javad SaienAbstractThe 1-octyl-3-methylimidazolium chloride, [C8mim][Cl] ionic liquid (IL) was used as a novel surfactant in n-heptane/water system. The interfacial tensions (IFT) were measured and corresponding variations were investigated. An IFT reduction of 80.8% was appropriate under the IL CMC of about 0.1 mol·L−1 and stronger effects were achieved when magnetite nanoparticles and salts were present profoundly under alkaline pHs. The equilibrium IFT data were accurately simulated wit...
Source: Chinese Journal of Chemical Engineering - June 9, 2019 Category: Chemistry Source Type: research

Light olefin production by catalytic co-cracking of Fischer–Tropsch distillate with methanol and the reaction kinetics investigation
Publication date: Available online 18 April 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Hui Zou, Teng Pan, Yanwen Shi, Youwei Cheng, Lijun Wang, Yu Zhang, Xi LiAbstractCatalytic co-cracking of Fischer–Tropsch (FT) light distillate and methanol combines highly endothermic olefin cracking reaction with exothermic methanol conversion over ZSM-5 catalyst to produce light olefins through a nearly thermoneutral process. The kinetic behavior of co-cracking reactions was investigated by different feed conditions: methanol feed only, olefin feed only and co-feed of methanol with olefins or F–T distilla...
Source: Chinese Journal of Chemical Engineering - June 9, 2019 Category: Chemistry Source Type: research

Solubility and mass transfer of H2, CH4, and their mixtures in vacuum gas oil: An experimental and modeling study
Publication date: Available online 6 June 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Zhigang Lei, Yifan Jiang, Yao Liu, Yichun Dong, Gangqiang Yu, Yanyong Sun, Ruili GuoAbstractIn this work, the solubility data and liquid-phase mass transfer coefficients of hydrogen (H2), methane (CH4) and their mixtures in vacuum gas oil (VGO) at temperatures (353.15–453.15 K) and pressures (1–7 MPa) were measured, which are necessary for catalytic cracking process simulation and design. The solubility of H2 and CH4 in VGO increases with the increase of pressure, but decreases with the increase of temper...
Source: Chinese Journal of Chemical Engineering - June 7, 2019 Category: Chemistry Source Type: research

Distribution performance of gas–liquid mixture in the shell side of spiral-wound heat exchangers
Publication date: Available online 4 June 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Wenke Zheng, Weihua Cai, Yiqiang JiangAbstractThe non-uniformity of gas–liquid mixture is critical issue which leads to the heat transfer deterioration of spiral-wound heat exchangers (SWHEs). Two-phase mass flow rate and the content of gas are important parameters as well as structural parameters which have prominent influences on flow distribution uniformity of SWHEs shell side. In order to investigate the influences of these parameters, an experimental test system was built using water and air as mediums and a n...
Source: Chinese Journal of Chemical Engineering - June 5, 2019 Category: Chemistry Source Type: research

Chlorine-free emission disposal of spent acid etchant in a three-compartment ceramic membrane reactor
Publication date: Available online 4 June 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Fanglu Yuan, Lele Cui, Peipei Ding, Wenheng JingAbstractElectrochemical technologies for the on-site treatment of spent acid etchant have received great attention due their ease of operation and economic benefits. On the other hand, a large amount of Cl2 is generated during the electrolysis process, which leads to potential environmental risks. In the present work, a novel three-compartment ceramic membrane flow reactor, including a cathode chamber, an anode chamber, and a gas absorption chamber was developed. The three ...
Source: Chinese Journal of Chemical Engineering - June 5, 2019 Category: Chemistry Source Type: research

Concentration-induced structural diversity and catalytic activity of BF3/n-BuOH complexes for n-decene polymerization
Publication date: Available online 28 May 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Jun Wang, Hongpeng Li, Xi Chen, Weiguang Shi, Na Zhang, Fuquan Bai, Xiao-feng Wang, Sihan Wang, Xianming Xu, Libo WangAbstractThe BF3/n-BuOH complexes were investigated as active specie in catalyzing n-decene polymerization reaction. The structures of BF3/n-BuOH complexes were characterized not only by modern spectrum but also by calculation at theoretical level. The results confirmed that BF3/n-BuOH complexes changed from BF3•(n-BuOH)2 complexes to BF3•n-BuOH complexes with the mass fraction of BF3 increasing....
Source: Chinese Journal of Chemical Engineering - May 30, 2019 Category: Chemistry Source Type: research

Stochastic modeling of subgrid-scale effects on particle motion in forced isotropic turbulence
Publication date: Available online 29 May 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Haoshu Shen, Yuxin Wu, Minmin Zhou, Hai Zhang, Guangxi YueAbstractThe subgrid-scale effects on particle motion were investigated in forced isotropic turbulence by DNS and prior-LES methods. In the DNS field, the importance of Kolmogorov scaling to preferential accumulation was validated by comparing the radial distribution functions under various particle Stokes numbers. The prior-LES fields were generated by filtering the DNS data. The subgrid-scale Stokes number (StSGS) is a useful tool for determining the effects of s...
Source: Chinese Journal of Chemical Engineering - May 30, 2019 Category: Chemistry Source Type: research

Spongy acetylenic carbon material prepared by ball milling CaC2 and chlorinated rubber- its mercury adsorption and electrochemical property
Publication date: Available online 29 May 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Xuebing Xu, Wenfeng Li, Luyan Xia, Yingzhou Lu, Hong Meng, Chunxi LiAbstractDesign and preparation of novel advanced carbon materials with unique architecture and functional groups is of great significance. Herein, a spongy acetylenic carbon material (SACM) was prepared through mechanochemical reaction of CaC2 and chlorinated rubber in a planetary ball mill at ambient temperature. Its composition and structure was characterized, and its electrochemical properties and adsorption performance for Hg2+ was studied. The SACM ...
Source: Chinese Journal of Chemical Engineering - May 30, 2019 Category: Chemistry Source Type: research

Synthesis plasmonic Bi/BiVO4 photocatalysts with enhanced photocatalytic activity for degradation of tetracycline (TC)
Publication date: Available online 29 May 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Nianjun Kang, Dongbo Xu, Weidong ShiAbstractIn recent years, the excessive use of antibiotics has become a serious problem for human health. BiVO4 regarded as one of the most promising visible-light-driven photocatalyst was used to degrade the antibiotics. In this paper, we fabricated Bi/BiVO4 plasmonic photocatalysts which enhanced the photocatalytic activity of BiVO4 for degradation of tetracycline (TC) antibiotic. The Bi/BiVO4 photocatalysts were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, sc...
Source: Chinese Journal of Chemical Engineering - May 30, 2019 Category: Chemistry Source Type: research

Structure and Synthesis of Graphene Oxide
Publication date: Available online 27 May 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Sun LingAbstractGraphene oxide (GO) is one typical two-dimension structured and oxygenated planar molecular material. Researchers across multiple disciplines have paid enormous attention to it due to the unique physiochemical properties. However, models used to describe the structure of GO are still in dispute and ongoing to update. And currently, synthesis methods for mass production are seemingly abundant but in fact, dominated by a few core methodologies. To update with the state-of-art opinions and progresses, herein...
Source: Chinese Journal of Chemical Engineering - May 29, 2019 Category: Chemistry Source Type: research

Effect of wall temperature modulation on the heat transfer characteristics of droplet-train flow inside a rectangular microchannel
Publication date: Available online 26 May 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): S.V.B. Vivekanand, V.R.K. RajuAbstractThe numerical studies of water-oil two-phase slug flow inside a two-dimensional vertical microchannel subjected to modulated wall temperature boundary conditions have been discussed in the present paper. Many researchers have contributed their efforts in exploring the characteristics of Taylor flows inside microchannel under constant wall heat flux or isothermal wall conditions. However, there is no study available in the literature which discusses the impact of modulated thermal wal...
Source: Chinese Journal of Chemical Engineering - May 27, 2019 Category: Chemistry Source Type: research

Removal of lead and cadmium ions by single and binary systems using phytogenic magnetic nanoparticles functionalized by 3-marcaptopropanic acid
Publication date: April 2019Source: Chinese Journal of Chemical Engineering, Volume 27, Issue 4Author(s): Imran Ali, Changsheng Peng, Iffat NazAbstractThe present research study is focused on green fabrication of superparamagnetic Phytogenic Magnetic Nanoparticles (PMNPs), and then its surface functionalization with 3-Mercaptopropionic acid (3-MPA). The resulting material (i.e. 3-MPA@PMNPs) characterized by FTIR, powder XRD, SEM, TEM, EDX, VSM, BET and TGA techniques and then further employed for the investigation of the adsorptive removal of lead (Pb2 +) and cadmium (Cd2 +) ions from aqueous solutions in single ...
Source: Chinese Journal of Chemical Engineering - May 25, 2019 Category: Chemistry Source Type: research

Editorial Board
Publication date: April 2019Source: Chinese Journal of Chemical Engineering, Volume 27, Issue 4Author(s): (Source: Chinese Journal of Chemical Engineering)
Source: Chinese Journal of Chemical Engineering - May 25, 2019 Category: Chemistry Source Type: research

Contents
Publication date: April 2019Source: Chinese Journal of Chemical Engineering, Volume 27, Issue 4Author(s): (Source: Chinese Journal of Chemical Engineering)
Source: Chinese Journal of Chemical Engineering - May 25, 2019 Category: Chemistry Source Type: research

Recent advances in acid-resistant zeolite T membranes for dehydration of organics
Publication date: Available online 23 May 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Yiwei Luo, Waseem Raza, Jianhua Yang, Liangqing Li, Ying LuAbstractZeolite membranes offer outstanding potentials in separation of many molecular mixtures due to their molecular sieving selectivity and the high thermal and mechanical stability that allow them to operate at harsh conditions. Development of durable and high separation performance membranes with lower fabrication and operation cost are highly demanded for industrial applications. Zeolite T membrane possesses good acid-resistance with excellent hydrophilic p...
Source: Chinese Journal of Chemical Engineering - May 25, 2019 Category: Chemistry Source Type: research

Preparation of hollow B–SiO2@TiO2 composites and their photocatalytic performances for degradation of ammonia-nitrogen and green algae in aqueous solution
Publication date: Available online 19 March 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Qin Zhou, Hengbo Yin, Aili Wang, Yang SiAbstractHollow B–SiO2@TiO2 composites were prepared by the wet chemical deposition method starting from TiCl4 and hollow B–SiO2 microspheres. TiO2 layers composed of anatase TiO2 nanoparticles were coated on the surfaces of the hollow B–SiO2 microspheres probably through the formation of TiOSi and TiOB bonds. A great number of OH groups were also present at the TiO2 coating layers. The presence of TiOSi bonds and TiOB bonds resulted in the formation of defects i...
Source: Chinese Journal of Chemical Engineering - May 22, 2019 Category: Chemistry Source Type: research

Hydrolysis of mechanically pre-treated cellulose catalyzed by solid acid SO42−-TiO2 in water–ethanol solvent
Publication date: Available online 20 March 2019Source: Chinese Journal of Chemical EngineeringAuthor(s): Xingyilong Zhang, Houfang Lu, Kejing Wu, Yingying Liu, Changjun Liu, Yingming Zhu, Bin LiangAbstractAn efficient catalyst SO42−-TiO2 (ST) from industrial metatitanic acid has been successfully prepared to catalyze hydrolysis of ball-milling cellulose. The results show that the highest catalytic efficiency is obtained for ST calcined at 450 °C (ST-450) with the yield of 21.8% glucose, 13.0% 5-HMF and 4.2% furfural at 200 °C for 30 min. The ball milling of cellulose and solid acid catalyst significant...
Source: Chinese Journal of Chemical Engineering - May 19, 2019 Category: Chemistry Source Type: research