Economic recovery and utilization of boiler flue gas pollutants
This patent describes an article of manufacture for removing SO{sub 2}, NO{sub x} and other pollutants from a flue gas stream containing these pollutants. It comprises: a horizontal housing defining a duct for flow of flue gas therethrough; at least three vertical beds of particulates disposed in succession transversely in the duct, whereby the flue gas flows in succession through each of the beds; means for supplying a particulate material for removing entrained fly ash from the flue gas stream to a first one of the beds; means for supplying a particulate material for removing sulfuric acid from flue gas stream to a second one of the beds; a third one of the beds comprising a regenerable particulate catalyst for carrying an alkali reactant thereon for reacting with sulfur dioxide in the flue stream; means for injecting an alkali material into the flue gas stream upstream of the third bed; and means for inducing high velocity turbulent flow of the flue gas through the at least three beds.
- Assignee:
- RCM Industries Corp., Los Angeles, CA
- Patent Number(s):
- US 4874585
- Application Number:
- PPN: US 7-165312A
- OSTI ID:
- 7271200
- Resource Relation:
- Patent File Date: 8 Mar 1988
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
20 FOSSIL-FUELED POWER PLANTS
54 ENVIRONMENTAL SCIENCES
FUEL GAS
DESULFURIZATION
AIR POLLUTION CONTROL
ALKALI METAL COMPOUNDS
BOILERS
CATALYSTS
NITROGEN OXIDES
POLLUTION CONTROL EQUIPMENT
SULFUR DIOXIDE
SULFURIC ACID
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
EQUIPMENT
FLUIDS
FUELS
GAS FUELS
GASES
HYDROGEN COMPOUNDS
INORGANIC ACIDS
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
SULFUR COMPOUNDS
SULFUR OXIDES
010800* - Coal
Lignite
& Peat- Waste Management
200202 - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)