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:
-
- Star City, WV
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- OSTI Identifier:
- 871259
- Patent Number(s):
- 5693588
- Assignee:
- United States of America as represented by Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
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:
- reduction; spalling; mixed; metal; oxide; desulfurization; sorbents; addition; promoter; pellets; removing; hydrogen; sulfide; fuel; gas; mixes; derived; coal; stabilized; operation; repeated; cycles; regeneration; reactions; lanthanum; trioxide; principally; zinc; titanate; exhibit; physical; stability; lack; decrepitation; loss; reactivity; pellet-forming; components; amount; 10; weight; percent; repeated cycles; zinc titanate; mixed metal; fuel gas; weight percent; metal oxide; hydrogen sulfide; removing hydrogen; promoter metal; regeneration reaction; lanthanum oxide; generation reaction; gas mixes; desulfurization sorbents; /502/423/
Citation Formats
Poston, James 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, James A. Reduction of spalling in mixed metal oxide desulfurization sorbents by addition of a large promoter metal oxide. United States.
Poston, James A. Wed .
"Reduction of spalling in mixed metal oxide desulfurization sorbents by addition of a large promoter metal oxide". United States. https://www.osti.gov/servlets/purl/871259.
@article{osti_871259,
title = {Reduction of spalling in mixed metal oxide desulfurization sorbents by addition of a large promoter metal oxide},
author = {Poston, James 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 = {1}
}