Lignin Conversion in Supercritical Ethanol in the Presence of Solid Acid Catalysts | Sciact - CRIS-system of Boreskov Institute of Catalysis

Lignin Conversion in Supercritical Ethanol in the Presence of Solid Acid Catalysts Full article

Journal

Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210

Output data

Year: 2015, Volume: 56, Number: 4, Pages: 434-441 Pages count : 8 DOI: 10.1134/S0023158415040114

Tags

alkali lignin, thermal conversion, zeolite catalysts, zirconia, liquid products

Authors

Kuznetsov B.N. ^1,2 , Sharypov V.I. ^1,2 , Chesnokov N.V. ^1,2 , Beregovtsova N.G. ¹ , Baryshnikov S.V. ¹ , Lavrenov A.V. ³ , Vosmerikov A.V. ⁴ , Agabekov V.E. ⁵

Affiliations

1	Institute of Chemistry and Chemical Technology, Siberian Branch Russian Academy of Sciences, Krasnoyarsk, Russia
2	Siberian Federal University, Krasnoyarsk, Russia
3	Institute of Hydrocarbons Processing, Siberian Branch Russian Academy of Sciences, Omsk, Russia
4	Institute of Petroleum Chemistry, Siberian Branch Russian Academy of Sciences, Tomsk, Russia
5	Institute of Chemistry of New Materials National Academy of Sciences of Belarus, Minsk, Belarus

Funding (1)

The Ministry of Education and Science of the Russian Federation

14.607.21.0031 (RFMEFI60714X0031) (114100940042)

The effects of sulfated ZrO2 and ZrO2–Al2O3 catalysts and acidic zeolite catalysts with various Si/Al ratios on the thermal conversion of alkali lignin in supercritical ethanol at 300–400°C and on the composition of the resulting products have been investigated. All of the catalysts enhance lignin conversion into liquid products. The strongest effect with the catalysts based on sulfated ZrO2 is attained at 400°C; with the zeolites, at 350°C. The catalysts diminish the concentration of phenol and its derivatives and increase the concentration of ethers (mainly the 1,1-diethoxyethane concentration) in the liquid products. The zeolite catalysts are preferable, since the reaction over the ZrO2containing catalysts produces gaseous compounds in higher yields. The maximum lignin conversion and a high yield of low-boiling liquid products are achieved at 350°C with the zeolite catalyst with Si/Al = 30, which contains a high concentration of acid sites that are stable at elevated temperatures. The most abundant phenolic liquid products of lignin conversion over the zeolite catalysts at 350°C are methoxyphenols and their methylated and ethylated derivatives.

Kuznetsov B.N. , Sharypov V.I. , Chesnokov N.V. , Beregovtsova N.G. , Baryshnikov S.V. , Lavrenov A.V. , Vosmerikov A.V. , Agabekov V.E.
Lignin Conversion in Supercritical Ethanol in the Presence of Solid Acid Catalysts
Kinetics and Catalysis. 2015. V.56. N4. P.434-441. DOI: 10.1134/S0023158415040114 WOS Scopus РИНЦ ANCAN OpenAlex

Кузнецов Б.Н. , Шарыпов В.И. , Чесноков Н.В. , Береговцова Н.Г. , Барышников С.В. , Лавренов А.В. , Восмериков А.В. , Агабеков В.Е.
Конверсия лигнина в среде сверхкритического этанола в присутствии твердых кислотных катализаторов
Кинетика и катализ. 2015. Т.56. №4. С.436-444. DOI: 10.7868/S0453881115040115 РИНЦ OpenAlex

Submitted:	Sep 19, 2014
Published print:	Jul 1, 2015
Published online:	Jul 25, 2015

Web of science:	WOS:000358408700005
Scopus:	2-s2.0-84937934920
Elibrary:	23993174
Chemical Abstracts:	2015:1234218
Chemical Abstracts (print):	164:304134
OpenAlex:	W1172368559

DB	Citing
Elibrary	17
Scopus	16
Web of science	19
OpenAlex	24