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Continuous bench-scale tests to assess METHOXYCOAL process performance. Final technical report, September 1, 1991--August 31, 1992 [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
38 pages : digital, PDF file
Additional Creators
United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Laboratory-scale research conducted at Southern Illinois University at Carbondale (SIUC) has shown that coal pyrolysis in the presence of CH₄/O₂ in a 97:3 mole ratio (the METHOXYCOAL process) can produce high yields of liquids and valuable chemical feedstocks, particularly phenols, cresols, and xylenols (PCX). The addition of magnesia, coal ash, or clays have been shown to further enhance coal conversion to these chemicals. The goal of this two-year project was to build upon that laboratory research by conducting continuous bench-scale tests at IGT. Tests were conducted with IBC-101 and IBC-105 coals under N₂, CH₄, and CH₄/O₂ blends, with and without mineral additives, at temperatures and pressures up to 1000°F and 200 psig. These tests have provided data valuable to further development efforts on the process. In the first year, fluidized-bed tests were conducted using inert bed diluents (coke and sand) to retard agglomeration. PCX yields of 0.99 wt% maf coal were achieved in CH₄ atmosphere, tripling the yield in N, atmosphere, while overall liquid yields were 18--20 wt% maf in either atmosphere. However, control of caking was difficult in spite of a very high bed dilution ratio of 4.5:1. During the second year, agglomeration was controlled by slurry impregnation of the coal with coal ash, magnesia, or montmorillonite at levels as low as 10 wt%. Thirteen continuous tests were conducted in 2-inch fluidized-bed and moving-bed reactors at test conditions of 900°--1000°F and 120 psig.
Report Numbers
E 1.99:doe/pc/91334--t112
doe/pc/91334--t112
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
12/31/1992.
"doe/pc/91334--t112"
"DE94005713"
"AV0100000"
Knight, R.A.; Carty, R.H.
Illinois Dept. of Energy and Natural Resources, Springfield, IL (United States)
Type of Report and Period Covered Note
Final; 01/01/1991 - 12/31/1992
Funding Information
FG22-91PC91334
View MARC record | catkey: 13835942