Steam reforming of gasification gas tar over dolomite with benzene as a model compound

Pekka Simell (Corresponding Author), E. Hirvensalo, V. Smolander, A. Krause

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Abstract

Tar decomposition over a dolomite catalyst in gasification conditions was modeled using benzene as a tar model compound. The reactions of the gas main components were included in the models studied. Kinetic studies were carried out at 750−925 °C and under ambient pressure in a plug flow reactor using a mixture of simulated gasification gas. Operation conditions without external or internal mass-transfer limitations were applied. Mechanistic models of the Langmuir−Hinshelwood type describing benzene decomposition were developed and tested. Experimental results could be best described by a kinetic rate equation based on the assumption that single-site adsorption of benzene was the rate-determining step and that adsorption of hydrogen inhibited benzene decomposition.
Original languageEnglish
Pages (from-to)1250-1257
Number of pages8
JournalIndustrial & Engineering Chemistry Research
Volume38
Issue number4
DOIs
Publication statusPublished - 1999
MoE publication typeA1 Journal article-refereed

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Keywords

  • gasification

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