Investigation on durability and reactivity of promising metal oxide sorbents during sulfidation and regeneration. Quarterly report, July 1 - September 30, 1995 Metadata

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Title

  • Main Title Investigation on durability and reactivity of promising metal oxide sorbents during sulfidation and regeneration. Quarterly report, July 1 - September 30, 1995

Contributor

  • Sponsor: United States. Office of the Assistant Secretary for Fossil Energy.
    Contributor Type: Organization
    Contributor Info: USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States)

Publisher

  • Name: Tuskegee Univ., AL (United States). Dept. of Chemical Engineering
    Place of Publication: United States

Date

  • Creation: 1995-12-31

Language

  • English

Description

  • Content Description: Hot-gas desulfurization for the integrated gasification combined cycle process has been investigated by many to remove effectively hydrogen sulfide with various metal oxide sorbents at high pressures and high temperatures. Metal oxides such as zinc titanate oxides, zinc ferrite oxide, copper oxide, manganese oxide and calcium oxide, were found to be promising sorbents in comparison with other removal methods such as membrane separations and reactive membrane separations. Some metal oxide sorbents exhibited the quite favorable performance in terms of attrition resistance and sulfur capacity. Removal reaction of H{sub 2}S from coal gas mixtures with ZT-4 or other promising sorbents of fine solid particles, and regeneration reaction of sulfur-loaded sorbents will be carried on in a batch reactor or a continuous differential reactor. The objectives of this project are to find intrinsic initial reaction kinetics for the metal oxide-hydrogen sulfide heterogeneous reaction system, to obtain effects of concentrations of coal gas components such as hydrogen, carbon monoxide, carbon dioxide, nitrogen and moisture on equilibrium reaction rate constants of the reaction system at various reaction temperatures and pressures, to identify regeneration kinetics of sulfur-loaded metal oxide sorbents, and to formulate promising metal oxide sorbents for the removal of sulfur from coal gas mixtures. Promising durable metal oxide sorbents of high-sulfur- absorbing capacity will be formulated by mixing active metal oxide powders with inert metal oxide powders and calcining these powder mixtures, or impregnating active metal oxide sorbents on supporting metal oxide matrixes. The Research Triangle Institute will also prepare promising metal oxide sorbents for this research project, plan experiments on removal of sulfur compounds from coal gases with metal oxide sorbents as well as regeneration of sulfur-loaded metal oxide sorbents, and review experimental results. 1 ref., 10 figs., 11 tabs.
  • Physical Description: 20 p.

Subject

  • Keyword: Manganese Oxides
  • Keyword: Ferrites
  • Keyword: Calcium Oxides
  • Keyword: Absorption
  • STI Subject Categories: 01 Coal, Lignite, And Peat
  • Keyword: Desulfurization
  • Keyword: Titanates
  • Keyword: Regeneration
  • Keyword: Progress Report
  • Keyword: Copper Oxides
  • Keyword: Chemical Reaction Kinetics
  • Keyword: Experimental Data
  • Keyword: Coal Gas
  • Keyword: Zinc Oxides
  • Keyword: Hydrogen Sulfides
  • Keyword: Adsorbents
  • Keyword: Sorptive Properties
  • Keyword: Hot Gas Cleanup

Source

  • Other Information: PBD: [1995]

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Other: DE97051618
  • Report No.: DOE/MC/31206--5359
  • Grant Number: FG21-94MC31206
  • DOI: 10.2172/469627
  • Office of Scientific & Technical Information Report Number: 469627
  • Archival Resource Key: ark:/67531/metadc683331

Note

  • Display Note: OSTI as DE97051618