Indexed by:期刊论文

Date of Publication:2012-11-01

Journal:JOURNAL OF NATURAL GAS CHEMISTRY

Included Journals:SCIE、EI、ISTIC、CSCD、Scopus

Volume:21

Issue:6

Page Number:759-766

ISSN No.:1003-9953

Key Words:mesoporous activated carbon; KOH; methane decomposition; coal liquefaction residue; hydrogen

Abstract:Mesoporous activated carbons were prepared from direct coal liquefaction residue (CLR) by KOH activation method, and the experiments were carried out to investigate the effects of KOH/CLR ratio, solvent for mixing the CLR and KOH, and carbonization procedure on the resultant carbon texture and catalytic activity for catalytic methane decomposition (CMD). The results showed that optimal KOH/CLR ratio of 2: 1; solvent with higher solubility to KOH or the CLR, and an appropriate carbonization procedure are conductive to improving the carbon pore structure and catalytic activity for CMD. The resultant mesoporous carbons show higher and more stable activity than microporous carbons. Additionally, the relationship between the carbon textural properties and the catalytic activity for CMD was also discussed.