Kinetic study of the drying step of supported catalysts by reversed-flow gas chromatography

1982 ◽  
Vol 15 (6) ◽  
pp. 351-354 ◽  
Author(s):  
G. Karaiskakis ◽  
A. Lycourghiotis ◽  
N. A. Katsanos
Keyword(s):  
Gas Chromatography ◽  
Kinetic Study ◽  
Supported Catalysts ◽  
Reversed Flow

A Plant Kinetic Study of Alcoholic Fermentation Using Reversed-Flow Gas Chromatography

1992 ◽  
Vol 27 (15) ◽  
pp. 2055-2070 ◽  
Author(s):  
N. Economopoulos ◽  
N. Athanassopoulos ◽  
N. A. Katsanos ◽  
G. Karaiskakis ◽  
P. Agathonos ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Kinetic Study ◽  
Alcoholic Fermentation ◽  
Reversed Flow

Ring opening of cyclohexane over ZSM-zeolites followed by reversed-flow gas chromatography

1995 ◽  
Vol 41 (3-4) ◽  
pp. 227-235
Author(s):  
I. Topalova ◽  
A. Niotis ◽  
N. A. Katsanos ◽  
V. Sotiropoulou
Keyword(s):  
Gas Chromatography ◽  
Ring Opening ◽  
Reversed Flow

A kinetic study of the thermally induced isomerization reactions of 9 c ,12 c linoleic acid triacylglycerol using gas chromatography

Food Control ◽  
2016 ◽  
Vol 67 ◽  
pp. 255-264 ◽  
Author(s):  
Qin Guo ◽  
Fan He ◽  
Qingpeng Li ◽  
Zhaoxuan Deng ◽  
Jing Jin ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Linoleic Acid ◽  
Kinetic Study ◽  
Thermally Induced

Catalytic Performance of SO2 by Colloidal Gold Supported on Nano γ-Fe2O3

2010 ◽  
Vol 178 ◽  
pp. 65-70 ◽  
Author(s):  
Sheng Rui Xu ◽  
Qin Shuai ◽  
Jin Hua Cheng ◽  
Xiao Ge Wang
Keyword(s):  
Gas Chromatography ◽  
Gold Nanoparticles ◽  
Catalytic Activity ◽  
Metal Oxides ◽  
Water Vapour ◽  
Colloidal Gold ◽  
Supported Catalysts ◽  
Catalytic Performance ◽  
Precipitation Method ◽  
Sulfate Species

A new catalyst of gold supported on nanometal oxide for oxidation of SO2 was developed. Deposition-precipitation method was used to prepare gold-based catalysts. The catalytic activity of the catalysts was evaluated by determining the concentration of SO2 with gas chromatography under reaction temperature from 100 to 700°C. The results showed that there was an enhancement of catalytic activity when gold nanoparticles were dispersed on the surface of nano-metal oxides, furthermore, γ-Fe2O3 showed the highest activity as the support of the colloidal gold supported catalysts among the nanometal oxides including γ-Fe2O3, Fe2O3, ZnO, and Al2O3. It was also found that water vapour in the reaction enhanced the catalytic activity of Au/γ-Fe2O3. The Au/γ-Fe2O3 was characterized by XRD and FTIR methods, which indicated that the gold nanoparticles were dispersed on the γ-Fe2O3 support and sulfate species were formed on the surface of catalysts.

scholarly journals Transport Phenomena and Evaporation on Interface of Gas-Liquid by Reversed-Flow Gas Chromatography

2014 ◽  
Vol 26 (23) ◽  
pp. 7871-7876 ◽  
Author(s):  
H.H. Mohammad ◽  
Khalisanni Khalid ◽  
Sharifuddin Mohd. Zain
Keyword(s):  
Gas Chromatography ◽  
Transport Phenomena ◽  
Reversed Flow

scholarly journals Vanadium-Substituted Phosphomolybdic Acids for the Aerobic Cleavage of Lignin Models—Mechanistic Aspect and Extension to Lignin

Materials ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 812
Author(s):  
Louay Al-Hussaini ◽  
Franck Launay ◽  
Elena Galvez
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Kinetic Study ◽  
Wheat Straw ◽  
High Performance ◽  
Vanadium Content ◽  
Gas Chromatography Mass Spectrometry ◽  
Mechanistic Aspect

This work deals with the aerobic oxidative cleavage of C-C and C-O bonds catalyzed by the Keggin-type phosphovanadomolybdic acid (H6[PMo9V3O40], noted H6PV3). The latter was synthesized by an adapted hydrothermal procedure classically used for lower vanadium content and was tested as a catalyst for the aerobic cleavage of 2-phenoxyacetophenone (noted K1HH) and 1-phenyl-2-phenoxyethanol (A1HH) used as two lignin models. The operative conditions (solvent, catalytic loading, etc.) were adjusted on K1HH and extrapolated to A1HH. The cleavage of the alcohol model required more drastic conditions and therefore further optimization. Preliminary attempts on an Organosolv wheat straw lignin were performed too. From the kinetic study, high performance liquid chromatography (HPLC) and gas chromatography–mass spectrometry (GC-MS) data, a mechanism of the cleavage of both models was proposed.

Sign in / Sign up

Export Citation Format

Share Document