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Catalytic hot gas cleaning

Abstract

Gasification gas that contains particulates can be purified from tars and ammonia by using nickel monolith catalysts. Temperatures over 900 deg C are required at 20 bar pressure to avoid deactivation by H{sub 2}S and carbon. Dolomites and limestones are effective tar decomposing catalysts only when calcined. Tar decomposition in gasification conditions can take place by steam or dry (CO{sub 2}) reforming reactions. These reactions follow apparent first order kinetics with respect to hydrocarbons in gasification conditions. (author) (16 refs.)
Authors:
Simell, P [1] 
  1. VTT Energy, Espoo (Finland)
Publication Date:
Dec 31, 1996
Product Type:
Conference
Report Number:
VTT-SYMP-163; CONF-9601128-
Reference Number:
SCA: 010800; 098000; 010404; PA: FI-97:003262; EDB-97:059477; SN: 97001773129
Resource Relation:
Conference: 2. symposium of the VTT research programme on chemical reaction mechanisms, Espoo (Finland), 29-30 Jan 1996; Other Information: PBD: 1996; Related Information: Is Part Of New catalysts for clean environment; Maijanen, A.; Hase, A. [eds.] [VTT Chemical Technology, Espoo (Finland)]; PB: 264 p.
Subject:
01 COAL, LIGNITE, AND PEAT; 09 BIOMASS FUELS; CATALYSTS; GASIFICATION; HOT GAS CLEANUP; BIOMASS; PEAT; COMBINED-CYCLE POWER PLANTS; AIR POLLUTION ABATEMENT
OSTI ID:
464533
Research Organizations:
Technical Research Centre of Finland, Espoo (Finland)
Country of Origin:
Finland
Language:
English
Other Identifying Numbers:
Other: ON: DE97740080; ISBN 951-38-4554-0; TRN: FI9703262
Availability:
OSTI as DE97740080
Submitting Site:
FI
Size:
pp. 123-129
Announcement Date:

Citation Formats

Simell, P. Catalytic hot gas cleaning. Finland: N. p., 1996. Web.
Simell, P. Catalytic hot gas cleaning. Finland.
Simell, P. 1996. "Catalytic hot gas cleaning." Finland.
@misc{etde_464533,
title = {Catalytic hot gas cleaning}
author = {Simell, P}
abstractNote = {Gasification gas that contains particulates can be purified from tars and ammonia by using nickel monolith catalysts. Temperatures over 900 deg C are required at 20 bar pressure to avoid deactivation by H{sub 2}S and carbon. Dolomites and limestones are effective tar decomposing catalysts only when calcined. Tar decomposition in gasification conditions can take place by steam or dry (CO{sub 2}) reforming reactions. These reactions follow apparent first order kinetics with respect to hydrocarbons in gasification conditions. (author) (16 refs.)}
place = {Finland}
year = {1996}
month = {Dec}
}