Influence of potassium on the performance of nickel-based catalyst in the steam gasification of cellulose

Zhi Wei Zeng, Jun Zou, Hai Ping Yang*, Xian Hua Wang, Chun Fei Wu, P. T. William, Han Ping Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The influence of alkali metal volatilization on the performance of nickel-based catalyst in the steam gasification of cellulose biomass was investigated in a two-stage fixed bed reactor. The results show that potassium is deposited on the catalyst surface with the volatilization of potassium salt during the catalytic steam reforming of potassium-loaded cellulose. The existence and deposition of proper amount of potassium may suppress the coke deposition and enhance the activity of nickel-based catalyst, which is of benefit to producing more hydrogen in the steam gasification of biomass. However, excessive amount of potassium loaded in cellulose may reduce the activity of nickel-based catalyst; moreover, with the repetitious operations, potassium is accumulated on the catalyst surface, which may lead to an obvious inhibitory effect on the activity and stability of nickel-based catalyst in the steam gasification of biomass.

Original languageEnglish
Pages (from-to)1433-1438
Number of pages6
JournalRanliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology
Volume43
Issue number12
Publication statusPublished - 01 Dec 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015, Science Press. All right reserved.

Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.

Keywords

  • Alkali metals
  • Cellulose
  • Nickel-based catalyst
  • Steam gasification

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Physical and Theoretical Chemistry

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