Reduction of spalling in mixed metal oxide desulfurization sorbents by addition of a large promoter metal oxide
Patent
·
OSTI ID:563655
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.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- US 5,693,588/A/
- Application Number:
- PAN: 8-689,634
- OSTI ID:
- 563655
- Country of Publication:
- United States
- Language:
- English
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