Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2010-12-27
pubmed:abstractText
Although effective treatment of acid gases such as HCl, SO(x), and NO(x) is essential for preventing air pollution, current methods pose other environmental problems such as CaCl? leaching, reduced landfill lifetimes, and solid waste production. Here we show that acid gases can be treated simply with a Mg-Al oxide slurry. The contribution of Mg-Al oxide to HCl and SO? removal increased as a function of the quantity and temperature of Mg-Al oxide. HCl was removed by the reconstruction of Mg-Al layered double hydroxide (Mg-Al LDH) intercalated with Cl? dissociated from HCl in the slurry. SO? was oxidized into SO? by oxygen in the air flow, dissolved in an aqueous solution, and removed by the reconstruction of Mg-Al LDH intercalated with dissociated SO?²?. Although less pronounced because of surface adsorption, NO was nonetheless removed by Mg-Al oxide. Our results suggest that simultaneous removal of HCl, SO?, and NO using a Mg-Al oxide slurry may be possible without the concomitant problems of conventional treatment methods.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1879-1298
pubmed:author
pubmed:copyrightInfo
Copyright © 2010 Elsevier Ltd. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
82
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
587-91
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Removal of HCl, SO?, and NO by treatment of acid gas with Mg-Al oxide slurry.
pubmed:affiliation
Tohoku University, Aramaki, Aoba-ku, Sendai, Japan. kameda@env.che.tohoku.ac.jp
pubmed:publicationType
Journal Article