Hydrocarbon formation from methane by a low-temperature 2-step reaction sequence

T. Koerts, M.J.A.G. Deelen, R.A. Santen, van

Research output: Contribution to journalArticleAcademicpeer-review

209 Citations (Scopus)
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Abstract

At atmospheric pressure thermodynamics limits direct conversion of methane to higher hydrocarbons to temperatures above 1200 K. Converting methane at lower temperatures requires at least two steps occurring under different conditions. This paper reports such a low-temperature conversion route toward ethane, propane, butane, and pentane without using oxygen. The overall reaction consists of two steps. Methane is dissociatively adsorbed on a Group VIII transition-metal catalyst at a temperature around 700 K, resulting in surface carbonaceous species and hydrogen. In the second step a particular carbonaceous intermediate is able to produce small alkanes upon hydrogenation around 373 K. The maximum yield to CnH2n+2 (n > 1) obtained on a Ru catalyst is 13%.
Original languageEnglish
Pages (from-to)101-114
Number of pages14
JournalJournal of Catalysis
Volume138
Issue number1
DOIs
Publication statusPublished - 1992

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