Selective catalytic synthesis of short chain oxymethylene ethers by a heteropoly acid – a reaction parameter and kinetic study

2021 ◽  
Author(s):  
Daniel Huth ◽  
Marcus Rose
Keyword(s):  
Kinetic Study ◽  
Diesel Fuel ◽  
Heteropoly Acid ◽  
Catalytic Synthesis ◽  
Short Chain ◽  
Oxidation States ◽  
Reaction Parameter ◽  
Platform Chemicals ◽  
Low Emission

Oxymethylene ethers (OME) are considered as low-emission additive or replacement to diesel fuel. They can be synthesized by different routes based on C1 platform chemicals in different oxidation states. The...

Ultrasound-Assisted Oxidative Desulfurization of Diesel Fuel in H2O2/Heteropoly Acid/Solvent System

2014 ◽  
Vol 1033-1034 ◽  
pp. 85-89 ◽  
Author(s):  
Guo Xian Yu ◽  
Qian Zhong ◽  
Mei Jin ◽  
Ping Lu
Keyword(s):  
Sulfur Content ◽  
Ultrasonic Irradiation ◽  
Diesel Fuel ◽  
Oxidation Reaction ◽  
Heteropoly Acid ◽  
Oxidative Desulfurization ◽  
Solvent System ◽  
Oxidative Reaction ◽  
Solvent Systems ◽  
Ultrasound Assisted

Ultrasound-assisted oxidative desulfurization (UAODS) of diesel fuel in H2O2/Heteropoly acid/Solvent systems, was investigated. Effects of solvent, catalyst, ultrasound and reaction temperature on the oxidation desulfurization of diesel fuel were investigated. When MPA/oil was 2%wt, methanol/diesel fuel was 20%wt, ultrasound power was 400 W and ultrasound time was 10 min, the sulfur content of diesel fuel was decreased from 211 ppm to 19 ppm. The use of ultrasonic irradiation in H2O2/Heteropoly acid/Solvent system significantly improved the efficiency of the oxidation reaction, and solvent was helpful to make the oxidative reaction happen in the same one phase.

One-Pot Synthesis of 1-Benzoylpyrene over Heteropoly Acid Catalysts

2012 ◽  
Vol 560-561 ◽  
pp. 294-299
Author(s):  
Xiao Qing Lu ◽  
Min Xing ◽  
Ai Xia Pan ◽  
Yin Yin Wu ◽  
Ji Min Xie ◽  
...  
Keyword(s):  
Benzoyl Chloride ◽  
Heteropoly Acid ◽  
Active Catalyst ◽  
Catalytic Synthesis ◽  
Acid Catalysts ◽  
Acylation Reaction ◽  
One Pot ◽  
Experimental Parameters ◽  
Product Separation ◽  
Ft Ir

A novel one-pot catalytic synthesis of 1-benzoylpyrene through acylation of pyrene with benzoyl chloride catalyzed by various Keggin type heteropoly acids (salts) was investigated. Pure 1-benzoylpyrene was obtained and the structure of 1-benzoylpyrene was identified by GC/MS, FT-IR and 1H NMR spectra. H3PW12O40 (PW) was found to be the most active catalyst in the acylation. The yield and the selectivity of 1-benzoylpyrene were up to 97.6 % and 100 %, respectively. The effects of experimental parameters on the catalytic acylation reaction and the recycling performance of PW catalyst were studied. PW catalyst shows well catalytic activity after running for 5 times. The facile product separation and the recycling performance of PW catalyst is expected to contribute to the development of clean and environmentally friendly strategy for the synthesis of 1-benzoylpyrene.

scholarly journals A kinetic study of the lipase-catalyzed ethanolysis of two short-chain triradylglycerols: Alkylglycerols vs. triacylglycerols

2010 ◽  
Vol 64 (1-2) ◽  
pp. 101-106 ◽  
Author(s):  
Luis Vázquez ◽  
Oscar Fernandez ◽  
Rosa M. Blanco ◽  
F. Javier Señoráns ◽  
Guillermo Reglero ◽  
...  
Keyword(s):  
Kinetic Study ◽  
Short Chain

Preparation of H5PMo10V2O40 /SBA-15 Catalyst and Application in Synthesis of Tributyl Citrate

2011 ◽  
Vol 236-238 ◽  
pp. 1019-1022
Author(s):  
Bing Hu ◽  
Chuan Qun Hu ◽  
Long Hui Nie ◽  
Ming Xia Fan
Keyword(s):  
Catalytic Activity ◽  
Structural Stability ◽  
Heteropoly Acid ◽  
Acid Catalyst ◽  
Catalytic Synthesis ◽  
High Catalytic Activity ◽  
Impregnation Method ◽  
Dispersion Characteristics ◽  
Fine Dispersion ◽  
Ft Ir

The heteropoly acid catalyst of H5PMo10V2O40 supported on SBA-15 mesoporous mole-cular sieve was prepared by an impregnation method and characterized by nitrogen physisorption, FT-IR,SEM, and used in catalytic synthesis of tributyl citrate. The results show that the heteropoly acid catalyst has fine dispersion characteristics, structural stability, high catalytic activity and better reusability.

Enzymatic synthesis of short-chain diacylated alkylglycerols: A kinetic study

2009 ◽  
Vol 44 (9) ◽  
pp. 1025-1031 ◽  
Author(s):  
Carlos F. Torres ◽  
Luis Vázquez ◽  
Francisco J. Señoráns ◽  
Guillermo Reglero
Keyword(s):  
Kinetic Study ◽  
Enzymatic Synthesis ◽  
Short Chain

Coordination Chemistry of Ruthenium

2021 ◽  
Vol 25 (9) ◽  
pp. 103-106
Author(s):  
Rahul Kanaoujiya ◽  
Shekhar Srivastava
Keyword(s):  
General Chemistry ◽  
Coordination Chemistry ◽  
Review Article ◽  
Catalytic Synthesis ◽  
Platinum Group Metals ◽  
Oxidation States ◽  
Coordination Numbers ◽  
Rare Elements ◽  
Ruthenium Compounds ◽  
Low Toxicity

Ruthenium is one of the rare elements that belongs to the platinum group metals. Ruthenium is very effective hardener for platinum and palladium. Well studied coordination and organometallic chemistry of ruthenium results in a various varieties of compounds. There are various features of ruthenium such as oxidation states, coordination numbers and geometries. Ruthenium compounds have various applications and also have low toxicity and they are ideal for the catalytic synthesis of drugs. The field of ruthenium chemistry is very broad and is extremely diverse in the field of catalysis and medicinal chemistry. This review article shows a classical general chemistry of ruthenium compounds.

Gasification of Diesel Fuel for a Low-Emission, High-Efficiency Engine System

1980 ◽  
Author(s):  
G. P. Purohit ◽  
John Houseman
Keyword(s):  
Diesel Fuel ◽  
High Efficiency ◽  
Low Emission ◽  
Engine System ◽  
Efficiency Engine
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