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Title: Metal regeneration of iron chelates in nitric oxide scrubbing

Abstract

The present invention relates to a process of using metal particles to reduce NO to NH{sub 3}. More specifically, the invention concerns an improved process to regenerate iron (II) (CHELATE) by reduction of iron (II) (CHELATE) (NO) complex, which process comprises: (a) contacting an aqueous solution containing iron (II) (CHELATE) (NO) with metal particles at between about 20 and 90 C to reduce NO present, produce ammonia or an ammonium ion, and produce free iron (II) (CHELATE) at a pH of between about 3 and 8. The process is useful to remove NO from flue gas and reduce pollution. 34 figs.

Inventors:
; ;
Issue Date:
Research Org.:
University of California
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
527767
Patent Number(s):
5,658,545
Application Number:
PAN: 8-412,706
Assignee:
Univ. of California, Oakland, CA (United States) OAK; SCA: 540120; PA: EDB-97:127033; SN: 97001843791
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 19 Aug 1997
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; NITRIC OXIDE; REDUCTION; CHELATING AGENTS; REGENERATION; AMMONIA; AMMONIUM COMPOUNDS; AIR POLLUTION CONTROL; FLUE GAS

Citation Formats

Chang, S.G., Littlejohn, D., and Shi, Y. Metal regeneration of iron chelates in nitric oxide scrubbing. United States: N. p., 1997. Web.
Chang, S.G., Littlejohn, D., & Shi, Y. Metal regeneration of iron chelates in nitric oxide scrubbing. United States.
Chang, S.G., Littlejohn, D., and Shi, Y. Tue . "Metal regeneration of iron chelates in nitric oxide scrubbing". United States.
@article{osti_527767,
title = {Metal regeneration of iron chelates in nitric oxide scrubbing},
author = {Chang, S.G. and Littlejohn, D. and Shi, Y.},
abstractNote = {The present invention relates to a process of using metal particles to reduce NO to NH{sub 3}. More specifically, the invention concerns an improved process to regenerate iron (II) (CHELATE) by reduction of iron (II) (CHELATE) (NO) complex, which process comprises: (a) contacting an aqueous solution containing iron (II) (CHELATE) (NO) with metal particles at between about 20 and 90 C to reduce NO present, produce ammonia or an ammonium ion, and produce free iron (II) (CHELATE) at a pH of between about 3 and 8. The process is useful to remove NO from flue gas and reduce pollution. 34 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {8}
}