Hot gas desulfurization by zinc oxide-titanium dioxide regenerable sorbents

Conference · Sun Dec 31 23:00:00 EST 1989 · Preprints of Papers, American Chemical Society, Division of Fuel Chemistry; (USA)

OSTI ID:6764080

Flytzani-Stephanopoulos, M; Lew, S; Sarofim, A F ^[1]

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1. Massachusetts Institute of Technology, Cambridge (USA)

Comparative kinetic of reduction and sulfidation of zinc oxide and zinc titanate materials were carried out in a thermogravimetric apparatus over the temperature range of 600-1,000{degree}C (reduction) and 500-700{degree}C (sulfidation). both dry as well as wet (H{sub 2}O) reactant gas mixtures of H{sub 2}-N{sub 2} were used in reduction. For sulfidation, gas mixtures of H{sub 2}-H{sub 2}-S-N{sub 2} where tested. Sulfidation reactivity and reduction stability were correlated with active sorbent crystal phase, e.g. ZnO, Zn{sub 2}TiO{sub 4}, ZnTiO{sub 3}, and Zn{sub 2}Ti{sub 3}O{sub 8}. TiO{sub 2} addition into ZnO retarded reduction rate.

• OSTI ID: 6764080
• Report Number(s): CONF-900402--
• Journal Information: Preprints of Papers, American Chemical Society, Division of Fuel Chemistry; (USA), Journal Name: Preprints of Papers, American Chemical Society, Division of Fuel Chemistry; (USA) Vol. 35:1; ISSN 0569-3772; ISSN ACFPA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DATA
DATA ANALYSIS
DESULFURIZATION
DOCUMENT TYPES
EXPERIMENTAL DATA
HOT GAS CLEANUP
INFORMATION
KINETICS
MEASURING INSTRUMENTS
MEASURING METHODS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PROCEEDINGS
PURIFICATION
REACTION KINETICS
SORBENT RECOVERY SYSTEMS
SULFIDATION
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZINC COMPOUNDS
ZINC OXIDES