RefDoc
Haut

Faire une nouvelle recherche
Make a new search
Lancer la recherche


Titre du document / Document title

Lignin depolymerization in hydrogen-donor solvents

Auteur(s) / Author(s)

DORRESTIJN E. (1) ; KRANENBURG M. (1) ; POINSOT D. (1) ; MULDER P. (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Leiden Institute of Chemistry, Leiden University, Leiden, PAYS-BAS

Résumé / Abstract

The conversion of different types of lignin to monophenolic compounds has been studied between 500 and 650 K, under typical coal liquefaction conditions using 9,10-dihydroanthracene (AnH2) and 7H-benz[de]anthracene (BzH) as the hydrogen-donor solvents. The yield of phenolic compounds was found to increase with the capacity of the hydrogen donor. The application of a polar cosolvent appeared to be beneficial as well. The differences in product distribution could be related to the origin of lignin. The maximum yield amounted to I I % after 4 h at 625 K using milled wood lignin in AnH2. It has been found that lignin itself is a hydrogen-donating substance and capable of cleaving aromatic ketones such as α-phenoxyacetophenone.

Revue / Journal Title

Holzforschung    ISSN  0018-3830   CODEN HOLZAZ 

Source / Source

1999, vol. 53, no6, pp. 611-616 (31 ref.)

Langue / Language

Anglais

Editeur / Publisher

de Gruyter, Berlin, ALLEMAGNE  (1947) (Revue)

Mots-clés anglais / English Keywords

Lignin

;

Depolymerization

;

Organic solvent

;

Anthracene derivatives

;

Pyrolysis

;

Liquefaction

;

Hydrogen transfer

;

Experimental study

;

Mots-clés français / French Keywords

Lignine

;

Dépolymérisation

;

Solvant organique

;

Anthracène dérivé

;

Pyrolyse

;

Liquéfaction

;

Transfert hydrogène

;

Etude expérimentale

;

Anthracène(9,10-dihydro)

;

Benzoanthracène

;

Benzo[de]anthracène

;

Mots-clés espagnols / Spanish Keywords

Lignina

;

Despolimerización

;

Solvente orgánico

;

Antraceno derivado

;

Pirólisis

;

Licuefacción

;

Transferencia hidrógeno

;

Estudio experimental

;

Localisation / Location

INIST-CNRS, Cote INIST : 5209, 35400008082357.0090

Nº notice refdoc (ud4) : 1193793



Faire une nouvelle recherche
Make a new search
Lancer la recherche
Bas