Investigation of the Etching of Silicon under Subcritical Water Conditions

2013 ◽  
Vol 53 (1) ◽  
pp. 173-181 ◽  
Author(s):  
Néstor G. González-Pereyra ◽  
William Glasgow ◽  
Alexander Parenzan ◽  
Julia L. Sharp ◽  
O. Thompson Mefford
Keyword(s):  
Subcritical Water ◽  
Water Conditions

Production of phenolic compounds from rice bran biomass under subcritical water conditions

2010 ◽  
Vol 160 (1) ◽  
pp. 259-266 ◽  
Author(s):  
Omid Pourali ◽  
Feridoun Salak Asghari ◽  
Hiroyuki Yoshida
Keyword(s):  
Phenolic Compounds ◽  
Rice Bran ◽  
Subcritical Water ◽  
Water Conditions

scholarly journals Life cycle assessment of biodiesel production from algal bio-crude oils extracted under subcritical water conditions

2014 ◽  
Vol 170 ◽  
pp. 454-461 ◽  
Author(s):  
Sundaravadivelnathan Ponnusamy ◽  
Harvind Kumar Reddy ◽  
Tapaswy Muppaneni ◽  
Cara Meghan Downes ◽  
Shuguang Deng
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Subcritical Water ◽  
Biodiesel Production ◽  
Crude Oils ◽  
Water Conditions

Hydrolysis kinetics of sunflower oil under subcritical water conditions

2009 ◽  
Vol 87 (6) ◽  
pp. 867-873 ◽  
Author(s):  
R. Alenezi ◽  
G.A. Leeke ◽  
R.C.D. Santos ◽  
A.R. Khan
Keyword(s):  
Sunflower Oil ◽  
Subcritical Water ◽  
Hydrolysis Kinetics ◽  
Water Conditions ◽  
Kinetics Of

Bio oil production from microalgae via hydrothermal liquefaction technology under subcritical water conditions

2018 ◽  
Vol 153 ◽  
pp. 108-117 ◽  
Author(s):  
P. Kiran Kumar ◽  
S. Vijaya Krishna ◽  
Kavita Verma ◽  
K. Pooja ◽  
D. Bhagawan ◽  
...  
Keyword(s):  
Subcritical Water ◽  
Oil Production ◽  
Hydrothermal Liquefaction ◽  
Bio Oil ◽  
Water Conditions

scholarly journals Stability and Extraction of Vanillin and Coumarin under Subcritical Water Conditions

Molecules ◽  
2020 ◽  
Vol 25 (5) ◽  
pp. 1061 ◽  
Author(s):  
Ninad Doctor ◽  
Grayson Parker ◽  
Katie Vang ◽  
Melanie Smith ◽  
Berkant Kayan ◽  
...  
Keyword(s):  
Natural Products ◽  
Chromatographic Separation ◽  
Extraction Efficiency ◽  
Subcritical Water ◽  
Stability Study ◽  
Water Conditions ◽  
Study Support ◽  
Partial Degradation ◽  
The Stability ◽  
Increasing Temperature

In order to facilitate the development of the green subcritical water chromatography technique for vanillin and coumarin, the stability of the compounds under subcritical water conditions was investigated in this work. In addition, their extraction from natural products was also studied. The stability experiments were carried out by heating the mixtures of vanillin and water or coumarin and water at temperatures ranging from 100 °C to 250 °C, while subcritical water extractions (SBWE) of both analytes from vanilla beans and whole tonka beans were conducted at 100 °C to 200 °C. Analyte quantification for both stability and extraction studies was carried out by HPLC. After heating for 60 min, vanillin was found to be stable in water at temperatures up to 250 °C. While coumarin is also stable at lower temperatures such as 100 °C and 150 °C, it undergoes partial degradation after heating for 60 min at 200 °C and higher. The results of this stability study support green subcritical water chromatographic separation and extraction of vanillin and coumarin at temperatures up to 150 °C. The SBWE results revealed that the extraction efficiency of both analytes from vanilla beans and tonka beans is significantly improved with increasing temperature.

Degradation of textile dyes under subcritical water conditions in the presence of hydrogen peroxide

2013 ◽  
Vol 92 (4) ◽  
pp. 615-622 ◽  
Author(s):  
Somayeh Daneshvar ◽  
Nakamura Hidemi ◽  
Feridoun Salak ◽  
Nader Mahinpey
Keyword(s):  
Hydrogen Peroxide ◽  
Subcritical Water ◽  
Textile Dyes ◽  
Water Conditions

Studies on the stability of preservatives under subcritical water conditions

2015 ◽  
Vol 37 (3) ◽  
pp. 306-311 ◽  
Author(s):  
B. Kapalavavi ◽  
R. Marple ◽  
C. Gamsky ◽  
Y. Yang
Keyword(s):  
Subcritical Water ◽  
Water Conditions ◽  
The Stability
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