Treatment of effluent gases for pollution removal and recovery of valuable products
Patent
·
OSTI ID:6286686
A method is described of treating an effluent gas stream containing atmospheric pollutants including gaseous carbon dioxide and hydrochloric acid along with particulate solids, comprising subjecting said effluent gas stream to cryogenic refrigeration to remove various of said pollutants but leaving said carbon dioxide and hydrochloric acid and nitrogen, oxygen, and said particulate solids in the residual gas stream; subjecting said residual gas stream to centrifugation while freezing said carbon dioxide and occluding said particulate solids therein and while liquefying said hydrochloric acid; withdrawing the hydrochloric acid as a liquid product; withdrawing the frozen carbon dioxide as a solid product; and volatilizing the withdrawn carbon dioxide to free it from the said particulate solids.
- Assignee:
- IMS; EDB-93-122936
- Patent Number(s):
- US 5235815; A
- Application Number:
- PPN: US 7-810195
- OSTI ID:
- 6286686
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CENTRIFUGATION
CHALCOGENIDES
CHLORINE COMPOUNDS
CLEANING
CRYOGENICS
DEASHING
EVAPORATION
EXHAUST GASES
FLUIDS
FREEZING
GASEOUS WASTES
GASES
HALOGEN COMPOUNDS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MANAGEMENT
MATERIALS RECOVERY
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
PHASE TRANSFORMATIONS
PROCESSING
SEPARATION PROCESSES
SUBLIMATION
VAPOR CONDENSATION
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
320305 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CENTRIFUGATION
CHALCOGENIDES
CHLORINE COMPOUNDS
CLEANING
CRYOGENICS
DEASHING
EVAPORATION
EXHAUST GASES
FLUIDS
FREEZING
GASEOUS WASTES
GASES
HALOGEN COMPOUNDS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MANAGEMENT
MATERIALS RECOVERY
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
PHASE TRANSFORMATIONS
PROCESSING
SEPARATION PROCESSES
SUBLIMATION
VAPOR CONDENSATION
WASTE MANAGEMENT
WASTE PROCESSING
WASTES