Highly active and reusable palladium nanoparticle catalyst stabilized by polydimethylsiloxane for hydrogenation of aromatic compounds in supercritical carbon dioxide

2012 ◽  
Vol 111-112 ◽  
pp. 402-408 ◽  
Author(s):  
Hsing-Jung Chen ◽  
Hsin-Wang Liu ◽  
Weisheng Liao ◽  
Horng-Bin Pan ◽  
Chien M. Wai ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Aromatic Compounds ◽  
Palladium Nanoparticle ◽  
Highly Active ◽  
Nanoparticle Catalyst ◽  
Supercritical Carbon

Carboxylation of aromatic compounds in a supercritical carbon dioxide medium

2012 ◽  
Vol 6 (7) ◽  
pp. 818-826 ◽  
Author(s):  
A. V. Shlyakhtin ◽  
S. Z. Vatsadze ◽  
D. P. Krut’ko ◽  
D. A. Lemenovskii ◽  
M. V. Zabalov
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Aromatic Compounds ◽  
Supercritical Carbon

scholarly journals Calculations of solubilities of aromatic compounds in supercritical carbon dioxide

1992 ◽  
Vol 31 (3) ◽  
pp. 967-973 ◽  
Author(s):  
Yu Jane Sheng ◽  
Ping Chin Chen ◽  
Yan Ping Chen ◽  
David Shan Hill Wong
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Aromatic Compounds ◽  
Supercritical Carbon

Obtaining of highly-active catalysts of unsaturated compounds hydrogenation by using supercritical carbon dioxide

2018 ◽  
Vol 140 ◽  
pp. 387-393
Author(s):  
Oleg P. Parenago ◽  
Peter S. Timashev ◽  
Eduard A. Karakhanov ◽  
Anton L. Maximov ◽  
Aleksei E. Lazhko ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Unsaturated Compounds ◽  
Highly Active ◽  
Supercritical Carbon

scholarly journals Effect of pressure on the Maillard reaction between ribose and cysteine in supercritical carbon dioxide

2010 ◽  
Vol 28 (No. 3) ◽  
pp. 192-201 ◽  
Author(s):  
H. Xu ◽  
W. He ◽  
K. Liu ◽  
Y. Gao
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Aromatic Compounds ◽  
Model System ◽  
Base Catalysis ◽  
Reaction Products ◽  
Acid Base ◽  
Ph Decrease ◽  
The Individual ◽  
Supercritical Carbon

An aqueous ribose-cysteine model system, heated at 140&deg;C under supercritical carbon dioxide (SC-CO<sub>2</sub>) and supercritical nitrogen (SC-N<sub>2</sub>), was investigated with emphasis on the formation of volatile compounds. In general, SC-CO<sub>2</sub> facilitated the overall intermediates accumulation while suppressing the advanced stage of browning. 3-Methyl-1, 2-dithian-4-one increased with increasing SC-CO<sub>2</sub> pressure, and was always more concentrated than in the case of SC-N<sub>2</sub>-treatment. The formation of thiols, disulfides, and formyl substituted thiophenes was also promoted in SC-CO<sub>2</sub>-treated reaction products, while the effect of high pressure on the individual components followed different patterns. The reversible pH decrease and reinforced acid-base catalysis of 2, 3-enolisation by SC-CO<sub>2</sub> could attribute to the decreased browning and higher amounts of most intense meaty aromatic compounds. &nbsp;

Solid - Gas Equilibrium in Systems Containing Aromatic Compounds and Supercritical Carbon Dioxide

2009 ◽  
Vol 59 (12) ◽  
Author(s):  
Viorel Feroiu ◽  
Dan Geana ◽  
Octavian Partenie
Keyword(s):  
Experimental Data ◽  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Aromatic Compounds ◽  
Binary Interaction ◽  
Mixing Rules ◽  
Cubic Equation ◽  
Binary Interaction Parameters ◽  
Good Agreement ◽  
Supercritical Carbon

A cubic equation of state, GEOS, with quadratic mixing rules and two adjustable parameters was used to calculate the solid � gas equilibrium in aromatic compounds + supercritical carbon dioxide systems. The results are in good agreement with the experimental data for temperatures between 308 K and 343 K and pressures up to 360 bar. The adjustable parameters kij and lij used in the mixing rules vary linearly with the temperature or remain constant for the investigated systems. Based on this observation, the binary interaction parameters and hence, the solubilities of the studied solid aromatic compounds in supercritical carbon dioxide can be predicted.

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