Effect of Acetic Acid Addition on Decomposition of Xylose in Supercritical Water

2018 ◽  
Vol 32 (2) ◽  
pp. 1754-1760 ◽  
Author(s):  
Tanawan Chalermsaktrakul ◽  
Yukihiko Matsumura
Keyword(s):  
Acetic Acid ◽  
Supercritical Water ◽  
Acid Addition

scholarly journals Aromatic glyoxalimines in criss-cross cycloaddition reactions

2004 ◽  
Vol 2 (1) ◽  
pp. 220-233 ◽  
Author(s):  
Jiří Verner ◽  
Milan Potáček
Keyword(s):  
Acetic Acid ◽  
Glacial Acetic Acid ◽  
Cycloaddition Reactions ◽  
Acid Addition

AbstractAromatic 1,4-diazabuta-1,3-dienes in glacial acetic acid with thiocyanates produce via criss-cross cycloaddition reactions the corresponding perhydroimidazo[4,5-d]imidazole-2,5-dithiones. When a mixture of thiocyanate and cyanate in a proper ratio was reacted together, nonsymmetrical 5-thioxo-perhydroimidazo[4,5-d]imidazole-2-ones were isolated. With cyanates substituted aromatic 1,4-diazabuta-1,3-dienes afforded product of acetic acid addition to primary formed 1,3-dipole intermediate 5-(4-substituted phenylamino)-3-(4-substituted phenyl)-2-oxoimidazolidin-4-yl acetate.

Supercritical Water Oxidation – Wastewaters and Sludges

1991 ◽  
Vol 23 (1-3) ◽  
pp. 389-398 ◽  
Author(s):  
Abdullah Shanableh ◽  
Earnest F. Gloyna
Keyword(s):  
Acetic Acid ◽  
Supercritical Water ◽  
Water Oxidation ◽  
Biological Treatment ◽  
Treatment Plant ◽  
Transformation Products ◽  
Pilot Scale ◽  
Supercritical Water Oxidation ◽  
Temperature And Pressure ◽  
Dimethyl Phenol

Environmental contaminants can be eliminated through the use of SCWO techniques. A comprehensive supercritical oxidation (SCWO) research laboratory, including bench and pilot-scale facilities has been developed. High temperature and pressure systems slightly less than and greater than supercritical water conditions can be used for the efficient destruction of waste biological treatment plant sludges, acetic acid, 2-nitro phenol, 2,4-dimethyl phenol, phenol, and 2,4-dinitro toluene. Above 400 °C, near complete destruction of sludge and transformation compounds such as acetic acid can be achieved with relatively short residence times. Ammonia and acetic acid are transformation products in the SCWO of biological treatment plant sludges. Acetic acid produced from the oxidation of sludge is oxidized rapidly at supercritical temperatures, 400 °C to 450 °C.

Catalytic oxidation of acetic acid over sodium titanate synthesized hydrothermally in supercritical water

2011 ◽  
Author(s):  
Fumitake Takahashi ◽  
Zhirong Sun ◽  
Kensuke Fukushi ◽  
Yoshito Oshima ◽  
Kazuo Yamamoto
Keyword(s):  
Acetic Acid ◽  
Catalytic Oxidation ◽  
Supercritical Water ◽  
Sodium Titanate
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