Catalytic pyrolysis of N-hexane for ethylene production over mordenite zeolites modified by metal oxides

Jian Zheng, Jialu Dong, Weifeng Zhang, Qinhua Xu, Chunshan Song

Research output: Contribution to journalConference article

Abstract

The acid-base and catalytic properties of a series of Mordenite zeolites for the pyrolysis of n-hexane, and modified the least acidic Na type Mordenite by supporting basic metal (alkali, alkaline earth) and reductive transition metal oxides were studied. With the increase of zeolite acidity, the activity increased while both the selectivity of ethylene and the ratio of (C1 + C2)/C3 decreased. This was due to the cracking reaction on acidic catalysts. Secondary undersirable reaction, e.g., aromatization, might occur between the olefin product and the carbenium ion intermediates, and coke formation became severe with the increase of strong acidity. The metaloxides that is easier to reduce (except MnO) showed approximately higher catalytic activity and yields to alkenes including ethylene. In the presence of steam, the catalytic activity and ethylene selectivity decreased significantly.

Original languageEnglish (US)
Pages (from-to)181-182
Number of pages2
JournalACS Division of Fuel Chemistry, Preprints
Volume47
Issue number1
StatePublished - Mar 1 2002
Event224th ACS National Meeting - Orlando, FL, United States
Duration: Apr 7 2002Apr 11 2002

All Science Journal Classification (ASJC) codes

  • Energy(all)

Fingerprint Dive into the research topics of 'Catalytic pyrolysis of N-hexane for ethylene production over mordenite zeolites modified by metal oxides'. Together they form a unique fingerprint.

  • Cite this