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Characterization of porosity via secondary reactions

Author: Lilly, W.D.; Calo, J.M.; Brown University. Division of Engineering.; United States. Department of Energy.; National Energy Technology Laboratory (U.S.); United States. Department of Energy. Office of Scientific and Technical Information.
Publisher: Washington, D.C. : United States. Dept. of Energy ; Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1991.
Edition/Format:   eBook : Document : National government publication : EnglishView all editions and formats
Database:WorldCat
Summary:
During the course of recent work applying temperature programmed desorption (TPD) to the determination of energetic distributions of oxygen complexes on the surfaces of oxidized coal chars, we discovered that secondary interactions occurring within the char structure during TPD produce characteristic features in the resultant spectra that appear to be quite sensitive to char porosity. The relative and absolute  Read more...
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Material Type: Document, Government publication, National government publication, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: Lilly, W.D.; Calo, J.M.; Brown University. Division of Engineering.; United States. Department of Energy.; National Energy Technology Laboratory (U.S.); United States. Department of Energy. Office of Scientific and Technical Information.
OCLC Number: 727272108
Notes: Published through the Information Bridge: DOE Scientific and Technical Information.
01/01/1991.
"Doe/pc/91305-1."
"DE92013026."
Lilly, W.D.; Calo, J.M.
Description: pages (28 pages) : digital, PDF file

Abstract:

During the course of recent work applying temperature programmed desorption (TPD) to the determination of energetic distributions of oxygen complexes on the surfaces of oxidized coal chars, we discovered that secondary interactions occurring within the char structure during TPD produce characteristic features in the resultant spectra that appear to be quite sensitive to char porosity. The relative and absolute extents of these secondary interactions from the basis of a potential characterization technique. The use of such a method to characterize coal char porosity is potentially attractive because the requisite spectra can be obtained in a single TPD experiment -- a very facile experimental procedure. However, the unambiguous and quantitative interpretation of such data in terms of parameters that can be used to characterize coal char porosity still requires development and an improved understanding of the controlling phenomena. These issues define the primary focus of the current proposal.

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