NiFe2O4 Nanocatalyst for Heavy Crude Oil Upgrading in Low Hydrogen/Feedstock Ratio

Publication date: Available online 19 October 2019Source: Catalysis TodayAuthor(s): O. Morelos-Santos, A.I. Reyes de la Torre, P. Schacht-Hernández, B. Portales-Martínez, I. Soto-Escalante, A.M. Mendoza-Martínez, R. Mendoza-Cruz, J. Jesús Velázquez-Salazar, M. José-YacamánAbstractIn this work, we probe the effect of NiFe2O4 nanoparticles (NPs) as catalysts in heavy crude oil upgrading in low hydrogen/feedstock ratio, that can occur in places where the conditions cannot be controlled, such as inside oil reservoir. The NPs were synthesized by the thermal decomposition method of metal precursors. In order to obtain the NPs, the decomposition of nickel and iron acetylacetonate was done in presence of oleic acid and oleylamine, which worked as solvents, and stabilizing and reducing agents (the solution was heated to 200 °C for 2 h and then, heated to reflux to 300 °C for 30 min).The produced NPs were characterized by UHR-FE-SEM and spherical aberration-corrected STEM. These techniques revealed the formation of nanoparticles with an average size of 10 ± 1.7 nm and the determination of the crystalline arrangement of the nanomaterials. Additionally, XRD confirmed that nanoparticles corresponded to the crystallographic phase (NiFe2O4). The experiments were performed in a batch reactor at an initial 100% H2 pressure of 45 Kgf. cm-2 and 380 °C, during 1&thin...
Source: Catalysis Today - Category: Chemistry Source Type: research

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Source: Journal of Pediatric Gastroenterology and Nutrition - Category: Gastroenterology Tags: Original Articles: Nutrition Source Type: research
Condition:   Gastroesophageal Reflux Intervention:   Procedure: Laparoscopic sleeve gastrectomy Sponsor:   Chinese University of Hong Kong Not yet recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
This study explicates the preparation of ethyl acetate (EtOAc) via esterification of acetic acid and ethanol over brønsted acid ionic liquid (1-Butyl-3-methylimidazolium hydrogen sulfate, [BMIM]HSO4) as catalyst. The ideal homogeneous (IH) and non-ideal homogeneous (NIH) models were applied to describe reaction kinetics and the model parameters were obtained by data fitting, where NIH model showed higher accuracy and confirmed the higher catalytic efficiency of [BMIM]HSO4 than Amberlyst 15. A novel reactive distillation (RD) flow-sheet for EtOAc production using [BMIM]HSO4 was designed and performed by Aspen Plus, i...
Source: Chemical Engineering Research and Design - Category: Chemistry Source Type: research
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Source: MDDI - Category: Medical Devices Authors: Tags: Digital Health Electronics Source Type: news
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Source: Endoscopy International Open - Category: Gastroenterology Authors: Tags: Original article Source Type: research
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Source: Endoscopy International Open - Category: Gastroenterology Authors: Tags: Original article Source Type: research
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Source: Gastrointestinal Endoscopy Clinics of North America - Category: Gastroenterology Authors: Source Type: research
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Source: Gastrointestinal Endoscopy Clinics of North America - Category: Gastroenterology Authors: Source Type: research
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Source: Gastrointestinal Endoscopy Clinics of North America - Category: Gastroenterology Authors: Source Type: research
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Source: Esophagus - Category: Gastroenterology Source Type: research
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