Method of removing sulfur emissions from a fluidized-bed combustion process

Patent · Tue May 23 00:00:00 EDT 1978

OSTI ID:6729159

Vogel, G J; Jonke, A A; Snyder, R B

Alkali metal or alkaline earth metal oxides are impregnated within refractory support material such as alumina and introduced into a fluidized-bed process for the combustion of coal. Sulfur dioxide produced during combustion reacts with the metal oxide to form metal sulfates within the porous support material. The support material is removed from the process and the metal sulfate regenerated to metal oxide by chemical reduction. Suitable pore sizes are originally developed within the support material by heat-treating to accommodate both the sulfation and regeneration while still maintaining good particle strength.

• Assignee: Dept. of Energy
• Patent Number(s): US 4091076
• OSTI ID: 6729159
• Resource Relation: Patent File Date: Filed date 7 May 1976; Other Information: PAT-APPL-684,419
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
FLUE GAS
DESULFURIZATION
FLUIDIZED-BED COMBUSTORS
SULFUR OXIDES
AIR POLLUTION CONTROL
FLUIDIZED-BED COMBUSTION
FOSSIL FUELS
BURNERS
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION
COMBUSTORS
ENERGY SOURCES
FUELS
GASEOUS WASTES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
WASTES
421000* - Engineering- Combustion Systems