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Cheap carbon sorbents produced from lignite by catalytic pyrolysis [electronic resource].

Published
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1995.
Physical Description
pages 511-519 : digital, PDF file
Additional Creators
United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Some data are presented describing the new technology of carbon sorbent production from powdered lignite in the installation with fluidized bed of catalyst. It was shown the different types of char products with extended pore structure and high sorption ability can be produced from cheap and accessible lignite of Kansk-Achinsk coal pit in pilot installation with fluidized bed of Al-Cu-Cr oxide catalyst or catalytically active slag materials. In comparison with the conventional technologies of pyrolysis the catalytic pyrolysis allows to increase by 3-5 times the process productivity and to decrease significantly the formation of harmful compounds. The latter is accomplished by complete oxidation of gaseous pyrolysis products in the presence of catalysts and by avoiding the formation of pyrolysis tars - the source of cancerogenic compounds. The technology of cheap powdered sorbent production from lignites makes possible to obtain from lignite during the time of pyrolysis only a few seconds char products with porosity up to 0.6 cm³ /g, and specific surface area more than 400 m³ /g. Some methods of powdered chars molding into carbon materials with the different shape were proved for producing of firmness sorbents. Cheap carbon sorbents obtained by thermocatalytic pyrolysis can be successfully used in purification of different industrial pollutants as one-time sorbent or as adsorbents of long-term application with periodic regeneration.
Report Numbers
E 1.99:doe/mc/30097--5161-pt.2
E 1.99: conf-9410458--pt.2
conf-9410458--pt.2
doe/mc/30097--5161-pt.2
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Note
Published through SciTech Connect.
12/01/1995.
"doe/mc/30097--5161-pt.2"
" conf-9410458--pt.2"
"DE96011553"
2. international conference on energy and environment: transitions in East Central Europe, Prague (Czech Republic), 31 Oct - 1 Nov 1994.
Kuznetsov, B.N.; Schchipko, M.L.
North Dakota Univ., Grand Forks, ND (United States)
View MARC record | catkey: 13836304