Production and use of activated char for combined SO{sub 2}/NO{sub x} removal. Technical report, September 1--November 30, 1993 [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 1993.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: 19 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:

Carbon adsorbents have been shown to remove sulfur oxides from flue gas, and also serve as a catalyst for reduction of nitrogen oxides at temperatures between 80 and 150°C. The overall objective of this project is to determine whether Illinois coal is a suitable feed stock for the production of activated char which could be used as a catalyst for removal of SO₂/NOₓ from combustion flue gas, and to evaluate the potential application of the products in flue gas cleanup. Key production variables will be identified to help design and engineer activated char with the proper pore structure and surface chemistry. During this reporting period, a series of chats was prepared from an Illinois coal (IBC-102). A 48×100 mesh size fraction of IBC-102 coal was physically cleaned to reduce its ash content from 5.5 to 3.6%. The clean coal was pyrolyzed in a fluidized-bed reactor at 500, 700 and 900°C. The surface area and oxygen content of the char was varied either by oxidation in 10% O₂ or by nitric acid treatment. Steam activation or chemical activation using potassium hydroxide was employed to enhance surface area development. Nitrogen BET surface areas of the chars ranged from 1 to 800 M²/g.

Report Numbers:

E 1.99:doe/pc/92521--t113
doe/pc/92521--t113

Subject(s):

Fossil-Fueled Power Plants

Other Subject(s):

Note:

Published through SciTech Connect.
12/31/1993.
"doe/pc/92521--t113"
"DE94008407"
"AV0100000/AV0102000"
Rostam-Abadi, M.; Lizzio, A.A.; DeBarr, J.A.
Illinois Dept. of Energy and Natural Resources, Springfield, IL (United States)

Type of Report and Period Covered Note:

Quarterly; 10/01/1993 - 12/31/1993

Funding Information:

FC22-92PC92521

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