scholarly journals Catalytic Depolymerization of Lignin and Woody Biomass in Supercritical Ethanol: Influence of Reaction Temperature and Feedstock

2017 ◽  
Vol 5 (11) ◽  
pp. 10864-10874 ◽  
Author(s):  
Xiaoming Huang ◽  
Ceylanpinar Atay ◽  
Jiadong Zhu ◽  
Sanne W. L. Palstra ◽  
Tamás I. Korányi ◽  
...  
Keyword(s):  
Reaction Temperature ◽  
Woody Biomass ◽  
Supercritical Ethanol

Catalytic in Situ Hydrogenolysis of Lignin in Supercritical Ethanol: Effect of Phenol, Catalysts, and Reaction Temperature

2018 ◽  
Vol 6 (5) ◽  
pp. 6867-6875 ◽  
Author(s):  
Minghao Zhou ◽  
Brajendra K Sharma ◽  
Peng Liu ◽  
Jun Ye ◽  
Junming Xu ◽  
...  
Keyword(s):  
Reaction Temperature ◽  
Ethanol Effect ◽  
Supercritical Ethanol

Conversion of phenylacetonitrile in supercritical alcohols within a system containing small volume of water

2015 ◽  
Vol 69 (3) ◽  
Author(s):  
Zhi-Qiang Hou ◽  
Rui-Zhe Zhang ◽  
Li-Gang Luo ◽  
Jing Yang ◽  
Chun-Ze Liu ◽  
...  
Keyword(s):  
Reaction Time ◽  
Reaction Temperature ◽  
Small Volume ◽  
Product Yield ◽  
Operating Conditions ◽  
Temperature Reaction ◽  
Supercritical Methanol ◽  
Supercritical Ethanol ◽  
Methyl Phenylacetate ◽  
Ethyl Phenylacetate

AbstractThe reaction of phenylacetonitrile in supercritical methanol and ethanol in a system containing a small volume of water was studied. The effects of various operating conditions, such as reaction temperature, reaction time, the mole ratio of phenylacetonitrile/water/methanol or ethanol on the product yield were systematically investigated. The optimal yield of methyl phenylacetate for phenylacetonitrile in supercritical methanol in a system containing a small volume of water was 70 % at 583 K and 2.5 h. The optimal yield of ethyl phenylacetate for phenylacetonitrile in supercritical ethanol with a small volume of water was 80 % at 583 K and 1.0 h. At the same time, a feasible mechanism was proposed for phenylacetonitrile in supercritical methanol and ethanol in a system containing a small volume of water.

Coke formation on HFAU and HEMT zeolites. Influence of the reaction temperature and propene pressure

1999 ◽  
Vol 96 (2) ◽  
pp. 303-318 ◽  
Author(s):  
G. A. Doka Nassionou ◽  
P. Magnoux ◽  
M. Guisnet
Keyword(s):  
Reaction Temperature ◽  
Coke Formation

Adjuvant therapeutic use of supercritical-ethanol extracts of Curcuma species with cancer drugs in rhabdomycosarcoma cell lines

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
C Ramachandran ◽  
SM Nair ◽  
KW Quirrin ◽  
EA Escalon ◽  
SJ Melnick
Keyword(s):  
Cell Lines ◽  
Therapeutic Use ◽  
Cancer Drugs ◽  
Supercritical Ethanol ◽  
Ethanol Extracts

WOODY BIOMASS FOR EASTERN U.S. FORESTS, 1983-1996

2003 ◽  
Author(s):  
S. L. BROWN ◽  
J. S. KERN ◽  
P. E. SCHROEDER
Keyword(s):  
Woody Biomass

The Influence of Reaction Temperature on the Size of the Catalyst Nano-particle and the Carbon Nanotube Diameter Distributions

2008 ◽  
Author(s):  
Enkeleda Dervishi ◽  
Zhongrui Li ◽  
Fumiya Watanabe ◽  
Yang Xu ◽  
Viney Saini ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Reaction Temperature ◽  
Nano Particle ◽  
Diameter Distributions

PEMBUATAN SURFAKTAN DARI ASAM OLEAT

2019 ◽  
Vol 1 (3) ◽  
pp. 68
Author(s):  
Puguh Setyopratomo ◽  
Edy Purwanto ◽  
H. Yefrico ◽  
H. Yefrico
Keyword(s):  
Oleic Acid ◽  
Optimum Condition ◽  
Reaction Temperature ◽  
Catalyst Concentration ◽  
Acid Number ◽  
Esterification Reaction ◽  
Number Density ◽  
Sample Analysis ◽  
Reaction Conversion ◽  
Glycerol Mono

The synthesis of glycerol mono oleic from oleic acid and glycerol is classified as an esterification reaction. This research is aimed to study the influent of reaction temperature and catalyst concentration on reaction conversion. During the experiment the temperature of reaction mixture was varied as 110 oC, 130 oC, and 150 oC, while the catalyst concentration of 1%, 3 %, and 5% was used. The batch experiment was conducted in a glass reactor equipped with termometer, agitator, and reflux condensor. The oleic acid – glycerol mol ratio of 1 : 2 was used as a mixture feed. To maintain the reaction temperature at certain level, the oil bath was used. After the temperature of reaction mixture was reached the expected value, then H2SO4 catalyst was added to the reactor.  To measure the extent of the reaction, every 30 minutes the sample was drawn out from the reactor vessel. The sample analysis include acid number, density, and viscosity measurement. From this research the optimum condition which is the temperature of reaction of 150 oC and 1% catalyst concentration was obtained. At this optimum condition the convertion reach 86% and the analysis of other physical properties of the product show the acid number of 24.12, the density of 0.922 g/cc, and the viscosity of 118.4 cp.

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