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Title: Reduction of spalling in mixed metal oxide desulfurization sorbents by addition of a large promoter metal oxide

Abstract

Mixed metal oxide pellets for removing hydrogen sulfide from fuel gas mixes derived from coal are stabilized for operation over repeated cycles of desulfurization and regeneration reactions by addition of a large promoter metal oxide such as lanthanum trioxide. The pellets, which may be principally made up of a mixed metal oxide such as zinc titanate, exhibit physical stability and lack of spalling or decrepitation over repeated cycles without loss of reactivity. The lanthanum oxide is mixed with pellet-forming components in an amount of 1 to 10 weight percent.

Inventors:
Issue Date:
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
563655
Patent Number(s):
5,693,588
Application Number:
PAN: 8-689,634
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; SCA: 010402; PA: EDB-98:013048; SN: 98001896328
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 2 Dec 1997
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; HOT GAS CLEANUP; ADSORBENTS; HYDROGEN SULFIDES; FUEL GAS; DESULFURIZATION; REGENERATION; PROMOTERS; LANTHANUM OXIDES; FRAGMENTATION; MITIGATION; ZINC OXIDES; TITANIUM OXIDES

Citation Formats

Poston, J.A. Reduction of spalling in mixed metal oxide desulfurization sorbents by addition of a large promoter metal oxide. United States: N. p., 1997. Web.
Poston, J.A. Reduction of spalling in mixed metal oxide desulfurization sorbents by addition of a large promoter metal oxide. United States.
Poston, J.A. Tue . "Reduction of spalling in mixed metal oxide desulfurization sorbents by addition of a large promoter metal oxide". United States.
@article{osti_563655,
title = {Reduction of spalling in mixed metal oxide desulfurization sorbents by addition of a large promoter metal oxide},
author = {Poston, J.A.},
abstractNote = {Mixed metal oxide pellets for removing hydrogen sulfide from fuel gas mixes derived from coal are stabilized for operation over repeated cycles of desulfurization and regeneration reactions by addition of a large promoter metal oxide such as lanthanum trioxide. The pellets, which may be principally made up of a mixed metal oxide such as zinc titanate, exhibit physical stability and lack of spalling or decrepitation over repeated cycles without loss of reactivity. The lanthanum oxide is mixed with pellet-forming components in an amount of 1 to 10 weight percent.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {12}
}