Reconstruction and recovery of anatase TiO2 from spent selective catalytic reduction catalyst by NaOH hydrothermal method
[Display omitted] The improper disposal of spent selective catalytic reduction (SCR) catalysts causes environmental pollution and metal resource waste. A novel process to recover anatase titanium dioxide (TiO2) from spent SCR catalysts was proposed. The process included alkali (NaOH) hydrothermal tr...
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| Veröffentlicht in: | Chinese journal of chemical engineering 2023-08, Vol.60 (8), p.53-60 |
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| container_title | Chinese journal of chemical engineering |
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| creator | Liu, Jinlong Wang, Chenye Wang, Xingrui Zhao, Chen Li, Huiquan Zhu, Ganyu Zhang, Jianbo |
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The improper disposal of spent selective catalytic reduction (SCR) catalysts causes environmental pollution and metal resource waste. A novel process to recover anatase titanium dioxide (TiO2) from spent SCR catalysts was proposed. The process included alkali (NaOH) hydrothermal treatment, sulfuric acid washing, and calcination. Anatase TiO2 in spent SCR catalyst was reconstructed by forming Na2Ti2O4(OH)2 nanosheet during NaOH hydrothermal treatment and H2Ti2O4(OH)2 during sulfuric acid washing. Anatase TiO2 was recovered by decomposing H2Ti2O4(OH)2 during calcination. The surface pore properties of the recovered anatase TiO2 were adequately improved, and its specific surface area (SSA) and pore volume (PV) were 85 m2·g−1 and 0.40 cm3·g−1, respectively. The elements affecting catalytic abilities (arsenic and sodium) were also removed. The SCR catalyst was resynthesized using the recovered TiO2 as raw material, and its catalytic performance in NO selective reduction was comparable with that of commercial SCR catalyst. This study realized the sustainable recycling of anatase TiO2 from spent SCR catalyst. |
| doi_str_mv | 10.1016/j.cjche.2023.03.019 |
| format | Article |
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The improper disposal of spent selective catalytic reduction (SCR) catalysts causes environmental pollution and metal resource waste. A novel process to recover anatase titanium dioxide (TiO2) from spent SCR catalysts was proposed. The process included alkali (NaOH) hydrothermal treatment, sulfuric acid washing, and calcination. Anatase TiO2 in spent SCR catalyst was reconstructed by forming Na2Ti2O4(OH)2 nanosheet during NaOH hydrothermal treatment and H2Ti2O4(OH)2 during sulfuric acid washing. Anatase TiO2 was recovered by decomposing H2Ti2O4(OH)2 during calcination. The surface pore properties of the recovered anatase TiO2 were adequately improved, and its specific surface area (SSA) and pore volume (PV) were 85 m2·g−1 and 0.40 cm3·g−1, respectively. The elements affecting catalytic abilities (arsenic and sodium) were also removed. The SCR catalyst was resynthesized using the recovered TiO2 as raw material, and its catalytic performance in NO selective reduction was comparable with that of commercial SCR catalyst. This study realized the sustainable recycling of anatase TiO2 from spent SCR catalyst.</description><identifier>ISSN: 1004-9541</identifier><identifier>EISSN: 2210-321X</identifier><identifier>DOI: 10.1016/j.cjche.2023.03.019</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Anatase TiO2 recovery ; Pore properties ; Spent V2O5-WO3/TiO2 catalyst ; TiO2 reconstruction</subject><ispartof>Chinese journal of chemical engineering, 2023-08, Vol.60 (8), p.53-60</ispartof><rights>2023 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd</rights><rights>Copyright © Wanfang Data Co. Ltd. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c333t-ad98196a6d20cb939f31cddd0b2be38f8c5a239af8b76cd34b340e1c9d9e4a893</citedby><cites>FETCH-LOGICAL-c333t-ad98196a6d20cb939f31cddd0b2be38f8c5a239af8b76cd34b340e1c9d9e4a893</cites></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.2023.03.019$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Liu, Jinlong</creatorcontrib><creatorcontrib>Wang, Chenye</creatorcontrib><creatorcontrib>Wang, Xingrui</creatorcontrib><creatorcontrib>Zhao, Chen</creatorcontrib><creatorcontrib>Li, Huiquan</creatorcontrib><creatorcontrib>Zhu, Ganyu</creatorcontrib><creatorcontrib>Zhang, Jianbo</creatorcontrib><title>Reconstruction and recovery of anatase TiO2 from spent selective catalytic reduction catalyst by NaOH hydrothermal method</title><title>Chinese journal of chemical engineering</title><description>[Display omitted]
The improper disposal of spent selective catalytic reduction (SCR) catalysts causes environmental pollution and metal resource waste. A novel process to recover anatase titanium dioxide (TiO2) from spent SCR catalysts was proposed. The process included alkali (NaOH) hydrothermal treatment, sulfuric acid washing, and calcination. Anatase TiO2 in spent SCR catalyst was reconstructed by forming Na2Ti2O4(OH)2 nanosheet during NaOH hydrothermal treatment and H2Ti2O4(OH)2 during sulfuric acid washing. Anatase TiO2 was recovered by decomposing H2Ti2O4(OH)2 during calcination. The surface pore properties of the recovered anatase TiO2 were adequately improved, and its specific surface area (SSA) and pore volume (PV) were 85 m2·g−1 and 0.40 cm3·g−1, respectively. The elements affecting catalytic abilities (arsenic and sodium) were also removed. The SCR catalyst was resynthesized using the recovered TiO2 as raw material, and its catalytic performance in NO selective reduction was comparable with that of commercial SCR catalyst. This study realized the sustainable recycling of anatase TiO2 from spent SCR catalyst.</description><subject>Anatase TiO2 recovery</subject><subject>Pore properties</subject><subject>Spent V2O5-WO3/TiO2 catalyst</subject><subject>TiO2 reconstruction</subject><issn>1004-9541</issn><issn>2210-321X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp9kMFKAzEURYMoWKtf4CYbl1NfkmlNFi6kqBWKBangLmSSN3aGdlKStDJ_b2q7Fh6EPO65IYeQWwYjBmxy345sa1c44sDFCPIwdUYGnDMoBGdf52TAAMpCjUt2Sa5ibAE4SCYHpP9A67uYws6mxnfUdI6GvNpj6Kmv890kE5EumwWndfAbGrfYJRpxjZnYI7U5sO5TYzPnTi3HXUy06um7WczoqnfBpxWGjVnTDaaVd9fkojbriDenc0g-X56X01kxX7y-TZ_mhRVCpMI4JZmamInjYCslVC2Ydc5BxSsUspZ2bLhQppbVw8Q6UVaiBGRWOYWlkUoMyd2x98d0tem-det3ocsv6uwMD8ZAAsicE8ecDT7GgLXehmZjQq8Z6INl3eo_y_rAaMjDDu2PRwrzF_YNBh1tg51F12SNSTvf_Mv_AmbgiWw</recordid><startdate>20230801</startdate><enddate>20230801</enddate><creator>Liu, Jinlong</creator><creator>Wang, Chenye</creator><creator>Wang, Xingrui</creator><creator>Zhao, Chen</creator><creator>Li, Huiquan</creator><creator>Zhu, Ganyu</creator><creator>Zhang, Jianbo</creator><general>Elsevier B.V</general><general>School of Chemical Engineering,University of Chinese Academy of Sciences,Beijing 100049,China%CAS Key Laboratory of Green Process and Engineering,National Engineering Research Center of Green Recycling for Strategic Metal Resources,Institute of Process Engineering Chinese Academy of Sciences,Beijing 100190,China</general><general>CAS Key Laboratory of Green Process and Engineering,National Engineering Research Center of Green Recycling for Strategic Metal Resources,Institute of Process Engineering Chinese Academy of Sciences,Beijing 100190,China</general><scope>AAYXX</scope><scope>CITATION</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20230801</creationdate><title>Reconstruction and recovery of anatase TiO2 from spent selective catalytic reduction catalyst by NaOH hydrothermal method</title><author>Liu, Jinlong ; Wang, Chenye ; Wang, Xingrui ; Zhao, Chen ; Li, Huiquan ; Zhu, Ganyu ; Zhang, Jianbo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c333t-ad98196a6d20cb939f31cddd0b2be38f8c5a239af8b76cd34b340e1c9d9e4a893</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Anatase TiO2 recovery</topic><topic>Pore properties</topic><topic>Spent V2O5-WO3/TiO2 catalyst</topic><topic>TiO2 reconstruction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Jinlong</creatorcontrib><creatorcontrib>Wang, Chenye</creatorcontrib><creatorcontrib>Wang, Xingrui</creatorcontrib><creatorcontrib>Zhao, Chen</creatorcontrib><creatorcontrib>Li, Huiquan</creatorcontrib><creatorcontrib>Zhu, Ganyu</creatorcontrib><creatorcontrib>Zhang, Jianbo</creatorcontrib><collection>CrossRef</collection><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>Liu, Jinlong</au><au>Wang, Chenye</au><au>Wang, Xingrui</au><au>Zhao, Chen</au><au>Li, Huiquan</au><au>Zhu, Ganyu</au><au>Zhang, Jianbo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reconstruction and recovery of anatase TiO2 from spent selective catalytic reduction catalyst by NaOH hydrothermal method</atitle><jtitle>Chinese journal of chemical engineering</jtitle><date>2023-08-01</date><risdate>2023</risdate><volume>60</volume><issue>8</issue><spage>53</spage><epage>60</epage><pages>53-60</pages><issn>1004-9541</issn><eissn>2210-321X</eissn><abstract>[Display omitted]
The improper disposal of spent selective catalytic reduction (SCR) catalysts causes environmental pollution and metal resource waste. A novel process to recover anatase titanium dioxide (TiO2) from spent SCR catalysts was proposed. The process included alkali (NaOH) hydrothermal treatment, sulfuric acid washing, and calcination. Anatase TiO2 in spent SCR catalyst was reconstructed by forming Na2Ti2O4(OH)2 nanosheet during NaOH hydrothermal treatment and H2Ti2O4(OH)2 during sulfuric acid washing. Anatase TiO2 was recovered by decomposing H2Ti2O4(OH)2 during calcination. The surface pore properties of the recovered anatase TiO2 were adequately improved, and its specific surface area (SSA) and pore volume (PV) were 85 m2·g−1 and 0.40 cm3·g−1, respectively. The elements affecting catalytic abilities (arsenic and sodium) were also removed. The SCR catalyst was resynthesized using the recovered TiO2 as raw material, and its catalytic performance in NO selective reduction was comparable with that of commercial SCR catalyst. This study realized the sustainable recycling of anatase TiO2 from spent SCR catalyst.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.cjche.2023.03.019</doi><tpages>8</tpages></addata></record> |
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| subjects | Anatase TiO2 recovery Pore properties Spent V2O5-WO3/TiO2 catalyst TiO2 reconstruction |
| title | Reconstruction and recovery of anatase TiO2 from spent selective catalytic reduction catalyst by NaOH hydrothermal method |
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