Characterization and optimization of sorbents utilized for emission control during coal gasification. Final report

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To overcome the shortage of components required for high temperature operation required by current IGCC and PFBC systems, researchers recently have decided that the power systems can be optimized within an operation temperature range of 343 to 538 C. The findings of this research work support the use of iron oxides as an efficient, disposable hot gas desulfurization sorbent candidate to meet the temperature range of 343 to 538 C to further optimize its application for hot gas desulfurization. A parametric study was performed to characterize the controlling parameters dominating the absorption process of hydrogen sulfide by waste iron oxide ... continued below

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59 p.

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Huque, Z.; Mei, D. & Zhou, J. July 14, 1998.

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Description

To overcome the shortage of components required for high temperature operation required by current IGCC and PFBC systems, researchers recently have decided that the power systems can be optimized within an operation temperature range of 343 to 538 C. The findings of this research work support the use of iron oxides as an efficient, disposable hot gas desulfurization sorbent candidate to meet the temperature range of 343 to 538 C to further optimize its application for hot gas desulfurization. A parametric study was performed to characterize the controlling parameters dominating the absorption process of hydrogen sulfide by waste iron oxide as a sorbent alternative within a stringent environment with the use of simulated KRW reducing gas. The major parameters studied for hot gas desulfurization with the use of waste iron oxide; mixed in coal ash and reacted with hot sulfurized gas; in hot gas stream include (1) dust cake permeability during heavy dust loading, (2) feasibility of dust cake removal with current back pulse cleaning technology, (3) the reaction temperature, (4) the space velocity of the gas stream. Based on the parametric testing performed on hot gas desulfurization and particulate filtration, the test results of this study indicate that the simultaneous operation of hot gas desulfurization and particulate filtration is feasible. The significant savings of capital investment, system operation and maintenance justify the use of iron oxides as an excellent candidate for hot gas cleanup.

Physical Description

59 p.

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OSTI as DE98058964

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  • Other Information: PBD: 14 Jul 1998

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  • Other: DE98058964
  • Report No.: DOE/MC/31426--13
  • Grant Number: FG21-94MC31426
  • DOI: 10.2172/663477 | External Link
  • Office of Scientific & Technical Information Report Number: 663477
  • Archival Resource Key: ark:/67531/metadc706015

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Office of Scientific & Technical Information Technical Reports

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  • July 14, 1998

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • Nov. 11, 2015, 12:01 p.m.

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Huque, Z.; Mei, D. & Zhou, J. Characterization and optimization of sorbents utilized for emission control during coal gasification. Final report, report, July 14, 1998; United States. (digital.library.unt.edu/ark:/67531/metadc706015/: accessed July 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.