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Process control of continuous sodium-limestone flue gas desulfurization system

Patent ·
OSTI ID:6767219
;

A method of controlling the continuous operation of the absorption and regeneration processes of a sodium-limestone double alkali flue gas desulfurization system, in which measurements of absorber effluent solution pH or flow diverted for regeneration are used as the primary control parameter governing the limestone addition rate.

Assignee:
FMC Corporation
Patent Number(s):
US 4431618
OSTI ID:
6767219
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
010800 -- Coal
Lignite
& Peat-- Waste Management
02 PETROLEUM
020800* -- Petroleum-- Waste Management
42 ENGINEERING
424000 -- Engineering-- Pollution Control Equipment-- (1980-1989)
ABSORPTION
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
CARBONATE ROCKS
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
DESULFURIZATION
DISPERSIONS
FLUE GAS
GASEOUS WASTES
LIME-LIMESTONE WET SCRUBBING PROCESSES
LIMESTONE
MIXTURES
OXIDES
OXYGEN COMPOUNDS
PH VALUE
PROCESS CONTROL
PROCESS SOLUTIONS
REGENERATION
ROCKS
SCRUBBING
SEDIMENTARY ROCKS
SODIUM COMPOUNDS
SOLUTIONS
SULFITES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
WASTES