The direct observation of alkali vapor species in biomass combustion and gasification [electronic resource].
- Published
- Washington, D.C. : United States. Dept. of Energy, 1994.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- 85 pages/2.0 Mb : digital, PDF file
- Additional Creators
- United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- This report summarizes new data from screening various feedstocks for alkali vapor release under combustion conditions. The successful development of a laboratory flow reactor and molecular beam, mass spectrometer interface is detailed. Its application to several herbaceous and woody feedstocks, as well as a fast-pyrolysis oil, under 800 and 1,100°C batch combustion, is documented. Chlorine seems to play a large role in the facile mobilization of potassium. Included in the report is a discussion of relevant literature on the alkali problem in combustors and turbines. Highlighted are the phenomena identified in studies on coal and methods that have been applied to alkali speciation. The nature of binding of alkali in coal versus biomass is discussed, together with the implications for the ease of release. Herbaceous species and many agricultural residues appear to pose significant problems in release of alkali species to the vapor at typical combustor temperatures. These problems could be especially acute in direct combustion fired turbines, but may be ameliorated in integrated gasification combined cycles.
- Report Numbers
- E 1.99:nrel/tp--430-5597
nrel/tp--430-5597 - Subject(s)
- Other Subject(s)
- Note
- Published through SciTech Connect.
01/01/1994.
"nrel/tp--430-5597"
"DE94000262"
French, R J; Dayton, D C; Milne, T A.
National Renewable Energy Lab., Golden, CO (United States) - Type of Report and Period Covered Note
- Topical; 01/01/1994 - 01/01/1994
- Funding Information
- AC02-83CH10093
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