Transformation of Hydrolysis Lignin in an Aqueous Medium under Sub- and Supercritical Conditions

Transformation of Hydrolysis Lignin in an Aqueous Medium under Sub- and Supercritical Conditions Full article

Journal

Russian Journal of Physical Chemistry B
ISSN: 1990-7923 , E-ISSN: 1990-7931

Output data

Year: 2022, Volume: 16, Number: 7, Pages: 1200-1203 Pages count : 4 DOI: 10.1134/s199079312207003x

Authors

Bobrova N.A. ^1,2 , Mishanin I.I. ² , Koklin A.E. ² , Bogdan V.I. ²

Affiliations

1	Department of Chemistry, Moscow State University, Moscow, 119991 Russia
2	Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, 119991 Russia

Aqueous solutions of depolymerized lignin with a concentration of 12 to 15 g/L are obtained by treating an aqueous suspension of hydrolysis lignin (LG-PP) for 4 hours at 250°C and 10 MPa. The transformation of lignin in the resulting solution is studied at sub- (320°C, 30 MPa) and supercritical (400–650°C, 30 MPa) parameters in a flow-type reactor. It is shown that the degree of depolymerization of lignin increases with increasing temperature and reaches its maximum value at 650°C; the process results in the formation of hydrocarbons of various groups including derivatives of benzene and phenol. Intensive gasification of lignin with the production of gas mixtures containing up to 40 vol % hydrogen occurs at temperatures above 600°C.

Bobrova N.A. , Mishanin I.I. , Koklin A.E. , Bogdan V.I.
Transformation of Hydrolysis Lignin in an Aqueous Medium under Sub- and Supercritical Conditions
Russian Journal of Physical Chemistry B. 2022. V.16. N7. P.1200-1203. DOI: 10.1134/s199079312207003x WOS Scopus OpenAlex

Web of science:	WOS:000920094600002
Scopus:	2-s2.0-85146821799
OpenAlex:	W4320029127

DB	Citing
OpenAlex	4
Scopus	3
Web of science	4