Gas desulfurization. [17 claims]

Patent · Tue Jan 11 04:00:00 EST 1977

OSTI ID:7228477

Wheelock, K S; Say, G R

Hydrogen sulfide and its precursors can be selectively sorbed from gas streams containing the same by contacting the gas stream at elevated temperatures with a regenerable sorbent comprising a steam-treated support composited with a rare earth metal component. Presteaming the support lowers the amount of rare earth metal component needed to achieve a given activity level for hydrogen sulfide removal. Subsequent to sorption, the sorbent composite 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. A preferred sorbent comprises lanthanum composited with presteamed alumina. 17 claims, 1 drawing figure.

• Assignee: Exxon Research and Engineering Co.
• Patent Number(s): US 4002720
• OSTI ID: 7228477
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
ALKALI METALS
ALKALINE EARTH METALS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
DESULFURIZATION
ELEMENTS
ENERGY SOURCES
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
LANTHANUM
METALS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
RARE EARTHS
REGENERATION
SORPTION
SORPTIVE PROPERTIES
STEAM
SULFIDES
SULFUR COMPOUNDS
SURFACE PROPERTIES