Flue gas desulfurization/denitrification using metal-chelate additives

Patent · Mon Aug 05 00:00:00 EDT 1985

OSTI ID:5547551

Harkness, J B.L.; Doctor, R D; Wingender, R J

A method of simultaneously removing SO/sub 2/ and NO from oxygen-containing flue gases resulting from the combustion of carbonaceous material by contacting the flue gas with an aqueous scrubber solution containing an aqueous sulfur dioxide sorbent and an active metal chelating agent which promotes a reaction between dissolved SO/sub 2/ and dissolved NO to form hydroxylamine N-sulfonates. The hydroxylamine sulfonates are then separated from the scrubber solution which is recycled. 3 figs.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• Assignee: Dept. of Energy
• Patent Number(s): None
• Application Number: ON: DE86013701
• OSTI ID: 5547551
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
42 ENGINEERING
424000 -- Engineering-- Pollution Control Equipment-- (1980-1989)
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ADDITIVES
AIR POLLUTION CONTROL
ALKALI METAL COMPOUNDS
AMINES
AMINO ACIDS
CARBON COMPOUNDS
CARBONATES
CARBOXYLIC ACIDS
CHALCOGENIDES
CHELATES
CHELATING AGENTS
CHEMICAL REACTIONS
COMPLEXES
CONTROL
DENITRIFICATION
DESULFURIZATION
EDTA
EQUIPMENT
FLUE GAS
GASEOUS WASTES
IRON COMPLEXES
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
REMOVAL
SCRUBBERS
SODIUM CARBONATES
SODIUM COMPOUNDS
SULFONATES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TRANSITION ELEMENT COMPLEXES
WASTES
ZINC COMPLEXES