Kinetic Study on the Selective Production of 2-(Hydroxybenzyl)-4-methylphenol from Organosolv Lignin in a Mixture of Supercritical Water and p-Cresol

Autor:	Xin Man, Kazuhide Okuda, Mitsuo Umetsu, Satoshi Ohara, Seiichi Takami, Tadafumi Adschiri
Rok vydání:	2012
Předmět:	Depolymerization General Chemical Engineering Organosolv General Chemistry Decomposition Industrial and Manufacturing Engineering Supercritical fluid Reaction rate chemistry.chemical_compound chemistry Yield (chemistry) Lignin Organic chemistry Char
Zdroj:	Industrial & Engineering Chemistry Research. 51:4804-4808
ISSN:	1520-5045 0888-5885
DOI:	10.1021/ie200211n
Popis:	We have realized chemical recovery of a phenolic compound, 2-(hydroxy-benzyl)-4-methyl-phenol (BMP), from organosolv lignin without forming char in a mixture of supercritical water and p-cresol (Okuda, K.; et al. J. Phys.: Condens. Matter2004, 16, S1325). In this paper, we evaluated the reaction rate constants of the depolymerization process of organosolv lignin using Monte Carlo simulation. We also evaluated the formation and decomposition rate of BMP based on the proposed reaction scheme. The obtained reaction rate constants gave insight into the mechanism why the mixture of supercritical water and p-cresol suppressed the formation of char. They also suggested the reaction path for the formation of BMP. In addition, these reaction rate constants enable the design and optimization of the chemical recovery processes to realize the highest yield.
Databáze:	OpenAIRE
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