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Treatment of NO and NO(2) with a Mg-Al oxide slurry.
MedLine Citation:
PMID:  23030391     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
A selective catalytic reduction process is generally used to treat NO(x); however, this approach results in the leakage of ammonia and requires expensive catalysts. In light of these issues, the specific objective of this study was to develop a new treatment method for a NO(x) gas stream with a Mg-Al oxide slurry. In this study, we examined the ability of a Mg-Al oxide slurry to treat NO and NO(2) gas streams. The Mg-Al oxide slurry only partially removed the NO and NO(2). The ability of Mg-Al oxide to remove NO is based on the adsorption of NO molecules onto the surface of the Mg-Al oxide rather than the formation of an Mg-Al layered double hydroxide (Mg-Al LDH) intercalated with NO(-) (2). NO(2) removal was greater than NO removal because of the higher solubility of NO(2). For NO(2) removal, the Mg-Al oxide adsorbed NO(-) (2) and NO(-) (3) onto the surface and formed Mg-Al LDH intercalated with NO(-) (2) and NO(-) (3). Based on these results, we conclude that the Mg-Al oxide slurry is an effective treatment for NO(x).
Authors:
Tomohito Kameda; Aki Kodama; Yuki Fubasami; Shogo Kumagai; Toshiaki Yoshioka
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering     Volume:  48     ISSN:  1532-4117     ISO Abbreviation:  J Environ Sci Health A Tox Hazard Subst Environ Eng     Publication Date:  2013  
Date Detail:
Created Date:  2012-10-03     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9812551     Medline TA:  J Environ Sci Health A Tox Hazard Subst Environ Eng     Country:  England    
Other Details:
Languages:  eng     Pagination:  86-91     Citation Subset:  IM    
Affiliation:
a Graduate School of Environmental Studies , Tohoku University , Sendai , Japan.
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