C2-C4 light olefins from bioethanol catalyzed by Ce-modified nanocrystalline HZSM-5 zeolite catalysts

Jiandong Bi, Min Liu, Chunsan Song, Xiangsheng Wang, Xinwen Guo

Research output: Contribution to journalArticle

50 Scopus citations

Abstract

Conversion of bioethanol into bulk chemicals besides ethylene is a promising process in which the stability of catalyst and the selectivity of products are important. In this study, a series of Ce-modified nanocrystalline HZSM-5 catalysts were prepared and their catalytic performance in the conversion of bioethanol into C2-C4 light olefins was investigated in a fixed-bed reactor at 400°C under atmospheric pressure. The results show that the stability of catalyst and the distribution of products depend strongly on the content of cerium and the calcination temperature; both cerium content and calcination temperature affect not only the acid properties of the tested catalyst samples but also the composition of cerium species (Ce3+/Ce4+) as revealed by XPS. Among the tested catalyst samples, the catalyst with 5wt% cerium loading and 520°C calcination temperature exhibits the best stability and selectivity to C3-C4 light olefins.

Original languageEnglish (US)
Pages (from-to)68-76
Number of pages9
JournalApplied Catalysis B: Environmental
Volume107
Issue number1-2
DOIs
StatePublished - Aug 31 2011

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Environmental Science(all)
  • Process Chemistry and Technology

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