Process for removing sulfur oxides from a gas

Patent · Tue Jun 06 04:00:00 EDT 1989

OSTI ID:5509498

Bertolacini, R J; Hirschberg, E H; Modica, F S

This patent describes a process for removing sulfur oxides from a gas. It comprises: absorbing sulfur oxides from the gas with an absorbent which comprises an inorganic oxide composition in association with at least one free or combined rare earth metal selected from the group consisting of lanthanum, cerium, praseodymium, samarium and dysprosium at a temperature in the range from about 100{sup 0} to about 900{sup 0}C, wherein the inorganic oxide composition comprises at least one member selected from the group consisting of MgAl/sub 2/O/sub 4/, and mixtures of alumina with magnesium oxide and the ratio by weight or inorganic oxide composition to rare earth metal or metals is from about 1.0 to about 1,000; and removing absorbed sulfur oxides from the absorbent as a sulfur containing gas by contacting the absorbent with a hydrocarbon in the presence of a hydrocarbon cracking catalyst at a temperature in the range from about 375{sup 0} to about 900{sup 0}C.

• Assignee: Amoco Corp., Chicago, IL
• Patent Number(s): US 4836993
• Application Number: PPN: US 6536247A
• OSTI ID: 5509498
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020800* -- Petroleum-- Waste Management
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ABSORPTION
ADSORBENTS
AIR POLLUTION CONTROL
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSTS
CERIUM
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
CRACKING
DECOMPOSITION
DESULFURIZATION
DYSPROSIUM
ELEMENTS
GASEOUS WASTES
HYDROCRACKING
LANTHANUM
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
METALS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
PRASEODYMIUM
PYROLYSIS
RARE EARTHS
REMOVAL
SAMARIUM
SULFUR COMPOUNDS
SULFUR OXIDES
THERMOCHEMICAL PROCESSES
WASTES