A bifunctional MnOx@PTFE catalytic membrane for efficient low temperature NOx-SCR and dust removal
Low-temperature selective catalytic reduction of NOx combined with dust removal technique due to its energy conservation characteristic has been attracted much attention for fume purification. In this work, the MnOx wrapped PTFE membrane with efficient dust removal and low-temperature NH3-SCR has be...
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| Veröffentlicht in: | Chinese journal of chemical engineering 2020-05, Vol.28 (5), p.1260-1267 |
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| container_title | Chinese journal of chemical engineering |
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| creator | Feng, Shasha Zhou, Mengdi Han, Feng Zhong, Zhaoxiang Xing, Weihong |
| description | Low-temperature selective catalytic reduction of NOx combined with dust removal technique due to its energy conservation characteristic has been attracted much attention for fume purification. In this work, the MnOx wrapped PTFE membrane with efficient dust removal and low-temperature NH3-SCR has been prepared with a facile route. MnOx with different crystal structures was uniformly grown around the PTFE fibrils through water bath. The flower-sphere-like MnOx@PTFE(O-MnOx@PTFE) and lamellar-interlaced ripple-like MnOx@PTFE(W-MnOx@PTFE) have large specific surface area which is favorable for enhancing catalytic performance. Also, the uniformly wrapped W-MnOx around the PTFE fibrils optimized the pore structure for ultrafine dust capture. The membrane can almost 100% reject particles that are smaller than 1.0 μm with a low filtration resistance. Meanwhile, W-MnOx@PTFE with more surface chemisorbed oxygen has the best NO conversion efficiency of 100% at a comparatively low and wide activity temperature window of 160–210 °C, which is far to the thermal limitation of the PTFE. Therefore, this efficient and energy conserving membrane has a bright application prospects for tail gas treatment compared to the original treatment process.
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| doi_str_mv | 10.1016/j.cjche.2019.11.014 |
| format | Article |
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[Display omitted]</description><identifier>ISSN: 1004-9541</identifier><identifier>EISSN: 2210-321X</identifier><identifier>DOI: 10.1016/j.cjche.2019.11.014</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Catalytic membrane ; Low-temperature ; MnOx ; PTFE ; SCR</subject><ispartof>Chinese journal of chemical engineering, 2020-05, Vol.28 (5), p.1260-1267</ispartof><rights>2019 Elsevier B.V.</rights><rights>Copyright © Wanfang Data Co. Ltd. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://www.wanfangdata.com.cn/images/PeriodicalImages/cjce/cjce.jpg</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.cjche.2019.11.014$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Feng, Shasha</creatorcontrib><creatorcontrib>Zhou, Mengdi</creatorcontrib><creatorcontrib>Han, Feng</creatorcontrib><creatorcontrib>Zhong, Zhaoxiang</creatorcontrib><creatorcontrib>Xing, Weihong</creatorcontrib><title>A bifunctional MnOx@PTFE catalytic membrane for efficient low temperature NOx-SCR and dust removal</title><title>Chinese journal of chemical engineering</title><description>Low-temperature selective catalytic reduction of NOx combined with dust removal technique due to its energy conservation characteristic has been attracted much attention for fume purification. In this work, the MnOx wrapped PTFE membrane with efficient dust removal and low-temperature NH3-SCR has been prepared with a facile route. MnOx with different crystal structures was uniformly grown around the PTFE fibrils through water bath. The flower-sphere-like MnOx@PTFE(O-MnOx@PTFE) and lamellar-interlaced ripple-like MnOx@PTFE(W-MnOx@PTFE) have large specific surface area which is favorable for enhancing catalytic performance. Also, the uniformly wrapped W-MnOx around the PTFE fibrils optimized the pore structure for ultrafine dust capture. The membrane can almost 100% reject particles that are smaller than 1.0 μm with a low filtration resistance. Meanwhile, W-MnOx@PTFE with more surface chemisorbed oxygen has the best NO conversion efficiency of 100% at a comparatively low and wide activity temperature window of 160–210 °C, which is far to the thermal limitation of the PTFE. Therefore, this efficient and energy conserving membrane has a bright application prospects for tail gas treatment compared to the original treatment process.
[Display omitted]</description><subject>Catalytic membrane</subject><subject>Low-temperature</subject><subject>MnOx</subject><subject>PTFE</subject><subject>SCR</subject><issn>1004-9541</issn><issn>2210-321X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNotkM1OwzAQhC0EEqXwBFx84ZiwazdNfECiqiggFYqgSNwsx1lDovygxGnL25NSTnOY2dXMx9glQoiA0-sitIX9olAAqhAxBJwcsZEQCIEU-HHMRggwCVQ0wVN21nUFgIAEkxFLZzzNXV9bnze1KflTvdrdvqwXd9wab8ofn1teUZW2pibumpaTc7nNqfa8bLbcU_VNrfF9S_x5tQve5q_c1BnP-s7zlqpmY8pzduJM2dHFv47Z--JuPX8Ilqv7x_lsGZCQygeZsMpMJE2NdWqaRg6dSmM0KsqsVBRJwGSwhuJRYii1GTkhExdDArEycirH7Orwd2tqZ-pPXTR9O2zq9ACHxHAIEUA85G4OORrKbHJqdbcfZCnLW7JeZ02uEfQerC70H1i9B6sR9QBW_gLhcm6B</recordid><startdate>20200501</startdate><enddate>20200501</enddate><creator>Feng, Shasha</creator><creator>Zhou, Mengdi</creator><creator>Han, Feng</creator><creator>Zhong, Zhaoxiang</creator><creator>Xing, Weihong</creator><general>Elsevier B.V</general><general>State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China%Nanjing Industrial Technology Research Institute of Membrane Material Co. Ltd., Nanjing 211100, China</general><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20200501</creationdate><title>A bifunctional MnOx@PTFE catalytic membrane for efficient low temperature NOx-SCR and dust removal</title><author>Feng, Shasha ; Zhou, Mengdi ; Han, Feng ; Zhong, Zhaoxiang ; Xing, Weihong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-e239t-d2c9a43e6acf96b5f1f9b71a95dc39e53018acf02058aebcdef238f708079a363</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Catalytic membrane</topic><topic>Low-temperature</topic><topic>MnOx</topic><topic>PTFE</topic><topic>SCR</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Feng, Shasha</creatorcontrib><creatorcontrib>Zhou, Mengdi</creatorcontrib><creatorcontrib>Han, Feng</creatorcontrib><creatorcontrib>Zhong, Zhaoxiang</creatorcontrib><creatorcontrib>Xing, Weihong</creatorcontrib><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Chinese journal of chemical engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Feng, Shasha</au><au>Zhou, Mengdi</au><au>Han, Feng</au><au>Zhong, Zhaoxiang</au><au>Xing, Weihong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A bifunctional MnOx@PTFE catalytic membrane for efficient low temperature NOx-SCR and dust removal</atitle><jtitle>Chinese journal of chemical engineering</jtitle><date>2020-05-01</date><risdate>2020</risdate><volume>28</volume><issue>5</issue><spage>1260</spage><epage>1267</epage><pages>1260-1267</pages><issn>1004-9541</issn><eissn>2210-321X</eissn><abstract>Low-temperature selective catalytic reduction of NOx combined with dust removal technique due to its energy conservation characteristic has been attracted much attention for fume purification. In this work, the MnOx wrapped PTFE membrane with efficient dust removal and low-temperature NH3-SCR has been prepared with a facile route. MnOx with different crystal structures was uniformly grown around the PTFE fibrils through water bath. The flower-sphere-like MnOx@PTFE(O-MnOx@PTFE) and lamellar-interlaced ripple-like MnOx@PTFE(W-MnOx@PTFE) have large specific surface area which is favorable for enhancing catalytic performance. Also, the uniformly wrapped W-MnOx around the PTFE fibrils optimized the pore structure for ultrafine dust capture. The membrane can almost 100% reject particles that are smaller than 1.0 μm with a low filtration resistance. Meanwhile, W-MnOx@PTFE with more surface chemisorbed oxygen has the best NO conversion efficiency of 100% at a comparatively low and wide activity temperature window of 160–210 °C, which is far to the thermal limitation of the PTFE. Therefore, this efficient and energy conserving membrane has a bright application prospects for tail gas treatment compared to the original treatment process.
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| ispartof | Chinese journal of chemical engineering, 2020-05, Vol.28 (5), p.1260-1267 |
| issn | 1004-9541 2210-321X |
| language | eng |
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| source | ScienceDirect Journals (5 years ago - present); Alma/SFX Local Collection |
| subjects | Catalytic membrane Low-temperature MnOx PTFE SCR |
| title | A bifunctional MnOx@PTFE catalytic membrane for efficient low temperature NOx-SCR and dust removal |
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