Sulfide removal process. [35 claims; 2 drawings]
Patent
·
OSTI ID:7144140
Hydrogen sulfide and its precursors can be selectively sorbed from gas streams containing them by contacting the gas stream at elevated temperatures with a regenerable sorbent comprising a supported or unsupported lanthanum or rare earth metal component. Subsequent to sorption, the sorbent may be desorbed and regenerated by treatment with steam (desorption) and an oxidizing gas (regeneration). The sorbent capacity may be increased by the use of alkali or alkaline earth metal components as promoters.
- Assignee:
- Exxon Research and Engineering Co.
- Patent Number(s):
- US 3974256
- OSTI ID:
- 7144140
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
CHALCOGENIDES
CHEMICAL REACTIONS
DESULFURIZATION
FLUIDS
GASES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
LANTHANUM COMPOUNDS
RARE EARTH COMPOUNDS
REGENERATION
REMOVAL
SORPTION
SORPTIVE PROPERTIES
STEAM
SULFIDES
SULFUR COMPOUNDS
SURFACE PROPERTIES
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
CHALCOGENIDES
CHEMICAL REACTIONS
DESULFURIZATION
FLUIDS
GASES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
LANTHANUM COMPOUNDS
RARE EARTH COMPOUNDS
REGENERATION
REMOVAL
SORPTION
SORPTIVE PROPERTIES
STEAM
SULFIDES
SULFUR COMPOUNDS
SURFACE PROPERTIES