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

Journal Article · Thu Apr 01 04:00:00 EST 1999 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie980646o· OSTI ID:345333

Simell, P A; Hirvensalo, E K; Smolander, V T ^[1]; Krause, A O.I. ^[2]

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1. VTT Energy (Finland)
2. Helsinki Univ. of Technology (Finland). Dept. of Chemical Technology

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.

• OSTI ID: 345333
• Journal Information: Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 4 Vol. 38; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
BIOMASS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
DOLOMITE
GASIFICATION
MATHEMATICAL MODELS
STEAM REFORMER PROCESSES
TAR