Combined NO/sub x//SO/sub 2/ removal from flue gas using ferrous chelates of SH-containing amino acids and alkali
We report herein the use of ferrous chelates of SH-containing amino acids including cysteine, penicillamine, N-acetylcysteine, and N-acetylpenicillamine in neutral or alkaline solutions for the combined removal of NO and SO/sub 2/ in wet flue gas clean-up systems. These SH-containing amino acids not only can stabilize ferrous ions in alkaline solutions to promote the absorption of NO, but are also capable of rapidly reducing ferric ions formed during the scrubbing process back to ferrous ions. The disulfide from of the above amino acids can be reduced by SO/sub 2/ and H/sub 2/S to regenerate the starting monomeric species. The chemistry relevant to the absorption of NO by the above ferrous chelates and the ligand regeneration process will be discussed.
- Research Organization:
- Univ. of California, Berkeley (USA)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 5931285
- Report Number(s):
- CONF-8708275-
- Journal Information:
- Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States), Vol. 32:4; Conference: American Chemical Society Division of Fuel Chemistry meeting, New Orleans, LA, USA, 30 Aug - 7 Sep 1987
- Country of Publication:
- United States
- Language:
- English
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Use of ferrous chelates of SH-containing amino acids and peptides for the removal of NO/sub x/ and SO/sub 2/ from flue gas
Use of ferrous cysteine and cysteine derivatives for the removal of NO/sub x/ and SO/sub 2/ from flue gas
Related Subjects
54 ENVIRONMENTAL SCIENCES
AMINO ACIDS
SORPTIVE PROPERTIES
CHELATES
HYDROGEN COMPOUNDS
IRON COMPOUNDS
NITRIC OXIDE
REMOVAL
SULFUR COMPOUNDS
SULFUR DIOXIDE
ADSORBENTS
ADSORPTION
AIR POLLUTION CONTROL
ALKALI METAL COMPOUNDS
EXPERIMENTAL DATA
FLUE GAS
SOLUTIONS
CARBOXYLIC ACIDS
CHALCOGENIDES
COMPLEXES
CONTROL
DATA
DISPERSIONS
GASEOUS WASTES
INFORMATION
MIXTURES
NITROGEN COMPOUNDS
NITROGEN OXIDES
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
SORPTION
SULFUR OXIDES
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
WASTES
010800* - Coal
Lignite
& Peat- Waste Management
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)