Study on the role of copper converter slag in simultaneously removing SO2 and NOx using KMnO4/copper converter slag slurry

To achieve “waste controlled by waste”, a novel wet process using KMnO4/copper converter slag slurry for simultaneously removing SO2 and NOx from acid-making tail gas was proposed. Through the solid-liquid separation for copper slag slurry, the liquid-phase part has a critical influence on removing...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of environmental sciences (China) 2021-10, Vol.108, p.33-43
Hauptverfasser: Bao, Jiacheng, Li, Kai, Ning, Ping, Wang, Chi, Song, Xin, Luo, Yansu, Sun, Xin
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 43
container_issue
container_start_page 33
container_title Journal of environmental sciences (China)
container_volume 108
creator Bao, Jiacheng
Li, Kai
Ning, Ping
Wang, Chi
Song, Xin
Luo, Yansu
Sun, Xin
description To achieve “waste controlled by waste”, a novel wet process using KMnO4/copper converter slag slurry for simultaneously removing SO2 and NOx from acid-making tail gas was proposed. Through the solid-liquid separation for copper slag slurry, the liquid-phase part has a critical influence on removing NOx and SO2. Also, the leached metal ions played a crucial role in the absorption of SO2 and NOx. Subsequently, the effects of single/multi-metal ions on NOx removal was investigated. The results showed that the leached metal from copper converter slag (Al3+, Cu2+, and Mg2+) and KMnO4 had a synergistic effect on NOx removal, thereby improving the NOx removal efficiency. Whereas Fe2+ had an inhibitory effect on the NOx removal owing to the reaction between Fe2+ and KMnO4, thereby consuming the KMnO4. Besides, SO2 was converted to SO42− completely partly due to the liquid catalytic oxidation by metal ions. The XRD and XPS results indicated that the Fe (II) species (Fe2SiO4, Fe3O4) in copper slag can react with H+ ions with the generation of Fe2+, and further consumed the KMnO4, thereby resulting in a decrease in the NOx removal. The characterization of the slags and solutions before and after reaction led us to propose the possible mechanisms. The role of copper slag is as follows: (1) the alkaline substances in copper slag can absorb SO2 and NO2 by KMnO4 oxidation. (2) copper slag may function as a catalyst to accelerate SO2 conversion and improve NOx removal by synergistic effect between leached metal ions and KMnO4. [Display omitted]
doi_str_mv 10.1016/j.jes.2021.02.004
format Article
fullrecord <record><control><sourceid>proquest_elsev</sourceid><recordid>TN_cdi_proquest_miscellaneous_2568255708</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S1001074221000425</els_id><sourcerecordid>2568255708</sourcerecordid><originalsourceid>FETCH-LOGICAL-e240t-d34854cea11c3f311ed87cb94e0760e73eb51c90fa5eca638dea761a316f63523</originalsourceid><addsrcrecordid>eNptkM1OwzAQhCMEEqXwANx85JJ0bcdxKk6o4k8UciicLdfZlFRuXOykojw9rsqR04xWo9HslyTXFDIKtJisszWGjAGjGbAMID9JRrSUZSo5g9PoAWgKMmfnyUUIa4gJAWKU_Cz6od4T15H-E4l3FolriHHbLfoo3Q59H12wekXajoR2M9hed-iGYPfE48bt2m5FFhUjuqvJW_VNhnC4vLx2VT75vyjYwfv9ZXLWaBvw6k_HycfD_fvsKZ1Xj8-zu3mKLIc-rXleitygptTwhlOKdSnNcpojyAJQclwKaqbQaIFGF7ysUcuCak6LpuCC8XFyc-zdevc1YOjVpg0GrT2-oZgoSiaEhDJGb49RjHt2LXoVTIudwbr1aHpVu1ZRUAfiaq0icXUgroCpyJP_ArFNdyc</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2568255708</pqid></control><display><type>article</type><title>Study on the role of copper converter slag in simultaneously removing SO2 and NOx using KMnO4/copper converter slag slurry</title><source>Access via ScienceDirect (Elsevier)</source><source>Alma/SFX Local Collection</source><creator>Bao, Jiacheng ; Li, Kai ; Ning, Ping ; Wang, Chi ; Song, Xin ; Luo, Yansu ; Sun, Xin</creator><creatorcontrib>Bao, Jiacheng ; Li, Kai ; Ning, Ping ; Wang, Chi ; Song, Xin ; Luo, Yansu ; Sun, Xin</creatorcontrib><description>To achieve “waste controlled by waste”, a novel wet process using KMnO4/copper converter slag slurry for simultaneously removing SO2 and NOx from acid-making tail gas was proposed. Through the solid-liquid separation for copper slag slurry, the liquid-phase part has a critical influence on removing NOx and SO2. Also, the leached metal ions played a crucial role in the absorption of SO2 and NOx. Subsequently, the effects of single/multi-metal ions on NOx removal was investigated. The results showed that the leached metal from copper converter slag (Al3+, Cu2+, and Mg2+) and KMnO4 had a synergistic effect on NOx removal, thereby improving the NOx removal efficiency. Whereas Fe2+ had an inhibitory effect on the NOx removal owing to the reaction between Fe2+ and KMnO4, thereby consuming the KMnO4. Besides, SO2 was converted to SO42− completely partly due to the liquid catalytic oxidation by metal ions. The XRD and XPS results indicated that the Fe (II) species (Fe2SiO4, Fe3O4) in copper slag can react with H+ ions with the generation of Fe2+, and further consumed the KMnO4, thereby resulting in a decrease in the NOx removal. The characterization of the slags and solutions before and after reaction led us to propose the possible mechanisms. The role of copper slag is as follows: (1) the alkaline substances in copper slag can absorb SO2 and NO2 by KMnO4 oxidation. (2) copper slag may function as a catalyst to accelerate SO2 conversion and improve NOx removal by synergistic effect between leached metal ions and KMnO4. [Display omitted]</description><identifier>ISSN: 1001-0742</identifier><identifier>EISSN: 1878-7320</identifier><identifier>DOI: 10.1016/j.jes.2021.02.004</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Copper slag slurry ; Denitrification ; Desulfurization ; Metal ions ; Reaction mechanism</subject><ispartof>Journal of environmental sciences (China), 2021-10, Vol.108, p.33-43</ispartof><rights>2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jes.2021.02.004$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Bao, Jiacheng</creatorcontrib><creatorcontrib>Li, Kai</creatorcontrib><creatorcontrib>Ning, Ping</creatorcontrib><creatorcontrib>Wang, Chi</creatorcontrib><creatorcontrib>Song, Xin</creatorcontrib><creatorcontrib>Luo, Yansu</creatorcontrib><creatorcontrib>Sun, Xin</creatorcontrib><title>Study on the role of copper converter slag in simultaneously removing SO2 and NOx using KMnO4/copper converter slag slurry</title><title>Journal of environmental sciences (China)</title><description>To achieve “waste controlled by waste”, a novel wet process using KMnO4/copper converter slag slurry for simultaneously removing SO2 and NOx from acid-making tail gas was proposed. Through the solid-liquid separation for copper slag slurry, the liquid-phase part has a critical influence on removing NOx and SO2. Also, the leached metal ions played a crucial role in the absorption of SO2 and NOx. Subsequently, the effects of single/multi-metal ions on NOx removal was investigated. The results showed that the leached metal from copper converter slag (Al3+, Cu2+, and Mg2+) and KMnO4 had a synergistic effect on NOx removal, thereby improving the NOx removal efficiency. Whereas Fe2+ had an inhibitory effect on the NOx removal owing to the reaction between Fe2+ and KMnO4, thereby consuming the KMnO4. Besides, SO2 was converted to SO42− completely partly due to the liquid catalytic oxidation by metal ions. The XRD and XPS results indicated that the Fe (II) species (Fe2SiO4, Fe3O4) in copper slag can react with H+ ions with the generation of Fe2+, and further consumed the KMnO4, thereby resulting in a decrease in the NOx removal. The characterization of the slags and solutions before and after reaction led us to propose the possible mechanisms. The role of copper slag is as follows: (1) the alkaline substances in copper slag can absorb SO2 and NO2 by KMnO4 oxidation. (2) copper slag may function as a catalyst to accelerate SO2 conversion and improve NOx removal by synergistic effect between leached metal ions and KMnO4. [Display omitted]</description><subject>Copper slag slurry</subject><subject>Denitrification</subject><subject>Desulfurization</subject><subject>Metal ions</subject><subject>Reaction mechanism</subject><issn>1001-0742</issn><issn>1878-7320</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNptkM1OwzAQhCMEEqXwANx85JJ0bcdxKk6o4k8UciicLdfZlFRuXOykojw9rsqR04xWo9HslyTXFDIKtJisszWGjAGjGbAMID9JRrSUZSo5g9PoAWgKMmfnyUUIa4gJAWKU_Cz6od4T15H-E4l3FolriHHbLfoo3Q59H12wekXajoR2M9hed-iGYPfE48bt2m5FFhUjuqvJW_VNhnC4vLx2VT75vyjYwfv9ZXLWaBvw6k_HycfD_fvsKZ1Xj8-zu3mKLIc-rXleitygptTwhlOKdSnNcpojyAJQclwKaqbQaIFGF7ysUcuCak6LpuCC8XFyc-zdevc1YOjVpg0GrT2-oZgoSiaEhDJGb49RjHt2LXoVTIudwbr1aHpVu1ZRUAfiaq0icXUgroCpyJP_ArFNdyc</recordid><startdate>202110</startdate><enddate>202110</enddate><creator>Bao, Jiacheng</creator><creator>Li, Kai</creator><creator>Ning, Ping</creator><creator>Wang, Chi</creator><creator>Song, Xin</creator><creator>Luo, Yansu</creator><creator>Sun, Xin</creator><general>Elsevier B.V</general><scope>7X8</scope></search><sort><creationdate>202110</creationdate><title>Study on the role of copper converter slag in simultaneously removing SO2 and NOx using KMnO4/copper converter slag slurry</title><author>Bao, Jiacheng ; Li, Kai ; Ning, Ping ; Wang, Chi ; Song, Xin ; Luo, Yansu ; Sun, Xin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-e240t-d34854cea11c3f311ed87cb94e0760e73eb51c90fa5eca638dea761a316f63523</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Copper slag slurry</topic><topic>Denitrification</topic><topic>Desulfurization</topic><topic>Metal ions</topic><topic>Reaction mechanism</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bao, Jiacheng</creatorcontrib><creatorcontrib>Li, Kai</creatorcontrib><creatorcontrib>Ning, Ping</creatorcontrib><creatorcontrib>Wang, Chi</creatorcontrib><creatorcontrib>Song, Xin</creatorcontrib><creatorcontrib>Luo, Yansu</creatorcontrib><creatorcontrib>Sun, Xin</creatorcontrib><collection>MEDLINE - Academic</collection><jtitle>Journal of environmental sciences (China)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bao, Jiacheng</au><au>Li, Kai</au><au>Ning, Ping</au><au>Wang, Chi</au><au>Song, Xin</au><au>Luo, Yansu</au><au>Sun, Xin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Study on the role of copper converter slag in simultaneously removing SO2 and NOx using KMnO4/copper converter slag slurry</atitle><jtitle>Journal of environmental sciences (China)</jtitle><date>2021-10</date><risdate>2021</risdate><volume>108</volume><spage>33</spage><epage>43</epage><pages>33-43</pages><issn>1001-0742</issn><eissn>1878-7320</eissn><abstract>To achieve “waste controlled by waste”, a novel wet process using KMnO4/copper converter slag slurry for simultaneously removing SO2 and NOx from acid-making tail gas was proposed. Through the solid-liquid separation for copper slag slurry, the liquid-phase part has a critical influence on removing NOx and SO2. Also, the leached metal ions played a crucial role in the absorption of SO2 and NOx. Subsequently, the effects of single/multi-metal ions on NOx removal was investigated. The results showed that the leached metal from copper converter slag (Al3+, Cu2+, and Mg2+) and KMnO4 had a synergistic effect on NOx removal, thereby improving the NOx removal efficiency. Whereas Fe2+ had an inhibitory effect on the NOx removal owing to the reaction between Fe2+ and KMnO4, thereby consuming the KMnO4. Besides, SO2 was converted to SO42− completely partly due to the liquid catalytic oxidation by metal ions. The XRD and XPS results indicated that the Fe (II) species (Fe2SiO4, Fe3O4) in copper slag can react with H+ ions with the generation of Fe2+, and further consumed the KMnO4, thereby resulting in a decrease in the NOx removal. The characterization of the slags and solutions before and after reaction led us to propose the possible mechanisms. The role of copper slag is as follows: (1) the alkaline substances in copper slag can absorb SO2 and NO2 by KMnO4 oxidation. (2) copper slag may function as a catalyst to accelerate SO2 conversion and improve NOx removal by synergistic effect between leached metal ions and KMnO4. [Display omitted]</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.jes.2021.02.004</doi><tpages>11</tpages></addata></record>
fulltext fulltext
identifier ISSN: 1001-0742
ispartof Journal of environmental sciences (China), 2021-10, Vol.108, p.33-43
issn 1001-0742
1878-7320
language eng
recordid cdi_proquest_miscellaneous_2568255708
source Access via ScienceDirect (Elsevier); Alma/SFX Local Collection
subjects Copper slag slurry
Denitrification
Desulfurization
Metal ions
Reaction mechanism
title Study on the role of copper converter slag in simultaneously removing SO2 and NOx using KMnO4/copper converter slag slurry
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-25T22%3A37%3A13IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_elsev&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Study%20on%20the%20role%20of%20copper%20converter%20slag%20in%20simultaneously%20removing%20SO2%20and%20NOx%20using%20KMnO4/copper%20converter%20slag%20slurry&rft.jtitle=Journal%20of%20environmental%20sciences%20(China)&rft.au=Bao,%20Jiacheng&rft.date=2021-10&rft.volume=108&rft.spage=33&rft.epage=43&rft.pages=33-43&rft.issn=1001-0742&rft.eissn=1878-7320&rft_id=info:doi/10.1016/j.jes.2021.02.004&rft_dat=%3Cproquest_elsev%3E2568255708%3C/proquest_elsev%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2568255708&rft_id=info:pmid/&rft_els_id=S1001074221000425&rfr_iscdi=true