DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Durable zinc oxide-containing sorbents for coal gas desulfurization

Abstract

Durable zinc-oxide containing sorbent pellets for removing hydrogen sulfide from a gas stream at an elevated temperature are made up to contain titania as a diluent, high-surface-area silica gel, and a binder. These materials are mixed, moistened, and formed into pellets, which are then dried and calcined. The resulting pellets undergo repeated cycles of sulfidation and regeneration without loss of reactivity and without mechanical degradation. Regeneration of the pellets is carried out by contacting the bed with an oxidizing gas mixture.

Inventors:
 [1]
  1. Morgantown, WV
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
OSTI Identifier:
870318
Patent Number(s):
5494880
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
durable; zinc; oxide-containing; sorbents; coal; gas; desulfurization; zinc-oxide; containing; sorbent; pellets; removing; hydrogen; sulfide; stream; elevated; temperature; contain; titania; diluent; high-surface-area; silica; binder; materials; mixed; moistened; formed; dried; calcined; resulting; undergo; repeated; cycles; sulfidation; regeneration; loss; reactivity; mechanical; degradation; carried; contacting; bed; oxidizing; mixture; repeated cycles; oxide containing; sorbent pellets; gas desulfurization; oxidizing gas; zinc oxide; gas stream; elevated temperature; hydrogen sulfide; gas mixture; removing hydrogen; coal gas; durable zinc; containing sorbent; /502/

Citation Formats

Siriwardane, Ranjani V. Durable zinc oxide-containing sorbents for coal gas desulfurization. United States: N. p., 1996. Web.
Siriwardane, Ranjani V. Durable zinc oxide-containing sorbents for coal gas desulfurization. United States.
Siriwardane, Ranjani V. Mon . "Durable zinc oxide-containing sorbents for coal gas desulfurization". United States. https://www.osti.gov/servlets/purl/870318.
@article{osti_870318,
title = {Durable zinc oxide-containing sorbents for coal gas desulfurization},
author = {Siriwardane, Ranjani V},
abstractNote = {Durable zinc-oxide containing sorbent pellets for removing hydrogen sulfide from a gas stream at an elevated temperature are made up to contain titania as a diluent, high-surface-area silica gel, and a binder. These materials are mixed, moistened, and formed into pellets, which are then dried and calcined. The resulting pellets undergo repeated cycles of sulfidation and regeneration without loss of reactivity and without mechanical degradation. Regeneration of the pellets is carried out by contacting the bed with an oxidizing gas mixture.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {1}
}