Spray Absorption and Electrochemical Reduction of Nitrogen Oxides from Flue Gas
This work developed an electrochemical reduction system which can effectively scrub NO× from flue gas by using aqueous solution of Fe(II)(EDTA) (ethylenediaminetetraacetate) as absorbent and electrolyte. This new system features (a) complete decomposition of NO X to harmless N2; and (b) fast regener...
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| Veröffentlicht in: | Environmental science & technology 2013-08, Vol.47 (16), p.9514-9522 |
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| container_title | Environmental science & technology |
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| creator | Guo, Qingbin Sun, Tonghua Wang, Yalin He, Yi Jia, Jinping |
| description | This work developed an electrochemical reduction system which can effectively scrub NO× from flue gas by using aqueous solution of Fe(II)(EDTA) (ethylenediaminetetraacetate) as absorbent and electrolyte. This new system features (a) complete decomposition of NO X to harmless N2; and (b) fast regeneration of Fe(II)(EDTA) through electrochemical reaction. The Fe(II)(EDTA) solution was recycled and reused continuously during entire process, and no harmful waste was generated. The reaction mechanism was thoroughly investigated by using voltammetric, chromatographic and spectroscopic approaches. The operating conditions of the system were optimized based on NO X removal efficiency. Approximately 98% NO removal was obtained at the optimal condition. The interference of SO2 in flue gas and the system operating stability was also evaluated. |
| doi_str_mv | 10.1021/es401013f |
| format | Article |
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This new system features (a) complete decomposition of NO X to harmless N2; and (b) fast regeneration of Fe(II)(EDTA) through electrochemical reaction. The Fe(II)(EDTA) solution was recycled and reused continuously during entire process, and no harmful waste was generated. The reaction mechanism was thoroughly investigated by using voltammetric, chromatographic and spectroscopic approaches. The operating conditions of the system were optimized based on NO X removal efficiency. Approximately 98% NO removal was obtained at the optimal condition. 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Sci. Technol</addtitle><description>This work developed an electrochemical reduction system which can effectively scrub NO× from flue gas by using aqueous solution of Fe(II)(EDTA) (ethylenediaminetetraacetate) as absorbent and electrolyte. This new system features (a) complete decomposition of NO X to harmless N2; and (b) fast regeneration of Fe(II)(EDTA) through electrochemical reaction. The Fe(II)(EDTA) solution was recycled and reused continuously during entire process, and no harmful waste was generated. The reaction mechanism was thoroughly investigated by using voltammetric, chromatographic and spectroscopic approaches. The operating conditions of the system were optimized based on NO X removal efficiency. Approximately 98% NO removal was obtained at the optimal condition. The interference of SO2 in flue gas and the system operating stability was also evaluated.</description><subject>Air Pollution</subject><subject>Applied sciences</subject><subject>Aqueous solutions</subject><subject>Atmospheric pollution</subject><subject>Chromatography</subject><subject>Edetic Acid - chemistry</subject><subject>Electrochemical Techniques</subject><subject>Electrolytes</subject><subject>Exact sciences and technology</subject><subject>Ferrous Compounds - chemistry</subject><subject>Flue gas</subject><subject>General processes of purification and dust removal</subject><subject>Nitrogen Oxides - isolation & purification</subject><subject>Oxidation-Reduction</subject><subject>Pollution</subject><subject>Prevention and purification methods</subject><subject>Spectrum analysis</subject><issn>0013-936X</issn><issn>1520-5851</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqF0UtLAzEQB_AgitbHwS8gARH0sDp5p8dS6gPEgg_wtqTZRFd2NzXpgn57t7VW0YOnQObHTCZ_hPYJnBKg5MwlDgQI82uoRwSFTGhB1lEPurusz-TjFtpO6QUAKAO9ibYo00r0Beuh8d00mnc8mKQQp7MyNNg0BR5Vzs5isM-uLq2p8K0rWruoBo9vyq705Bo8fisLl7CPocbnVevwhUm7aMObKrm95bmDHs5H98PL7Hp8cTUcXGeGczbLPC14YTWXginvjRDSEO-0EBzAQJ9OqJe2280DKyZSSgLGM6Wolto6pgnbQceffacxvLYuzfK6TNZVlWlcaFNOBIDqNhT8f8qpVAK0nNPDX_QltLHpFpkrxSUji9knn8rGkFJ0Pp_GsjbxPSeQzwPJV4F09mDZsZ3UrljJrwQ6cLQEJnVf7aNpbJm-nZKK077-dsamH6_6M_AD6s6bvQ</recordid><startdate>20130820</startdate><enddate>20130820</enddate><creator>Guo, Qingbin</creator><creator>Sun, Tonghua</creator><creator>Wang, Yalin</creator><creator>He, Yi</creator><creator>Jia, Jinping</creator><general>American Chemical Society</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>7ST</scope><scope>7T7</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>SOI</scope><scope>7X8</scope></search><sort><creationdate>20130820</creationdate><title>Spray Absorption and Electrochemical Reduction of Nitrogen Oxides from Flue Gas</title><author>Guo, Qingbin ; Sun, Tonghua ; Wang, Yalin ; He, Yi ; Jia, Jinping</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a443t-f2d4dc846537ffa556a1fe855400a092b2f6c102f03db66610af3772868ce3813</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Air Pollution</topic><topic>Applied sciences</topic><topic>Aqueous solutions</topic><topic>Atmospheric pollution</topic><topic>Chromatography</topic><topic>Edetic Acid - chemistry</topic><topic>Electrochemical Techniques</topic><topic>Electrolytes</topic><topic>Exact sciences and technology</topic><topic>Ferrous Compounds - chemistry</topic><topic>Flue gas</topic><topic>General processes of purification and dust removal</topic><topic>Nitrogen Oxides - isolation & purification</topic><topic>Oxidation-Reduction</topic><topic>Pollution</topic><topic>Prevention and purification methods</topic><topic>Spectrum analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Guo, Qingbin</creatorcontrib><creatorcontrib>Sun, Tonghua</creatorcontrib><creatorcontrib>Wang, Yalin</creatorcontrib><creatorcontrib>He, Yi</creatorcontrib><creatorcontrib>Jia, Jinping</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Toxicology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Environmental science & technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Guo, Qingbin</au><au>Sun, Tonghua</au><au>Wang, Yalin</au><au>He, Yi</au><au>Jia, Jinping</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spray Absorption and Electrochemical Reduction of Nitrogen Oxides from Flue Gas</atitle><jtitle>Environmental science & technology</jtitle><addtitle>Environ. Sci. Technol</addtitle><date>2013-08-20</date><risdate>2013</risdate><volume>47</volume><issue>16</issue><spage>9514</spage><epage>9522</epage><pages>9514-9522</pages><issn>0013-936X</issn><eissn>1520-5851</eissn><coden>ESTHAG</coden><abstract>This work developed an electrochemical reduction system which can effectively scrub NO× from flue gas by using aqueous solution of Fe(II)(EDTA) (ethylenediaminetetraacetate) as absorbent and electrolyte. This new system features (a) complete decomposition of NO X to harmless N2; and (b) fast regeneration of Fe(II)(EDTA) through electrochemical reaction. The Fe(II)(EDTA) solution was recycled and reused continuously during entire process, and no harmful waste was generated. The reaction mechanism was thoroughly investigated by using voltammetric, chromatographic and spectroscopic approaches. The operating conditions of the system were optimized based on NO X removal efficiency. Approximately 98% NO removal was obtained at the optimal condition. The interference of SO2 in flue gas and the system operating stability was also evaluated.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>23875953</pmid><doi>10.1021/es401013f</doi><tpages>9</tpages></addata></record> |
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| subjects | Air Pollution Applied sciences Aqueous solutions Atmospheric pollution Chromatography Edetic Acid - chemistry Electrochemical Techniques Electrolytes Exact sciences and technology Ferrous Compounds - chemistry Flue gas General processes of purification and dust removal Nitrogen Oxides - isolation & purification Oxidation-Reduction Pollution Prevention and purification methods Spectrum analysis |
| title | Spray Absorption and Electrochemical Reduction of Nitrogen Oxides from Flue Gas |
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