FUNDAMENTAL STUDY OF LOW-NOx COMBUSTION FLY ASH UTILIZATION

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This study is principally concerned with characterizing the organic part of coal combustion fly ashes. High carbon fly ashes are becoming more common as by-products of low-NOx combustion technology, and there is need to learn more about this fraction of the fly ash. The project team consists of two universities, Brown and Princeton, and an electrical utility, New England Power. A sample suite of over fifty fly ashes has been gathered from utilities across the United States, and includes ashes from a coals ranging in rank from bituminous to lignite. The characterizations of these ashes include standard tests (LOI, Foam ... continued below

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SUUBERG, ERIC M. & HURT, ROBERT H. October 19, 1998.

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Description

This study is principally concerned with characterizing the organic part of coal combustion fly ashes. High carbon fly ashes are becoming more common as by-products of low-NOx combustion technology, and there is need to learn more about this fraction of the fly ash. The project team consists of two universities, Brown and Princeton, and an electrical utility, New England Power. A sample suite of over fifty fly ashes has been gathered from utilities across the United States, and includes ashes from a coals ranging in rank from bituminous to lignite. The characterizations of these ashes include standard tests (LOI, Foam Index), as well as more detailed characterizations of their surface areas, porosity, extractability and adsorption behavior. The ultimate goal is, by better characterizing the material, to enable broadening the range of applications for coal fly ash re-use beyond the current main market as a pozzolanic agent for concretes. The potential for high carbon-content fly ashes to substitute for activated carbons is receiving particular attention. The work performed to date has already revealed how very different the surfaces of different ashes produced by the same utility can be, with respect to polarity of the residual carbon. This can help explain the large variations in acceptability of these ashes as concrete additives.

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  • Other: DE00007782
  • Report No.: DE-FG22-96PC96213--03
  • Grant Number: FG22-96PC96213
  • DOI: 10.2172/7782 | External Link
  • Office of Scientific & Technical Information Report Number: 7782
  • Archival Resource Key: ark:/67531/metadc716875

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  • October 19, 1998

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  • Sept. 29, 2015, 5:31 a.m.

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  • April 8, 2016, 1:54 p.m.

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SUUBERG, ERIC M. & HURT, ROBERT H. FUNDAMENTAL STUDY OF LOW-NOx COMBUSTION FLY ASH UTILIZATION, report, October 19, 1998; Morgantown, West Virginia. (digital.library.unt.edu/ark:/67531/metadc716875/: accessed September 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.