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Review of Researches on SCR Catalyst with Low Temperature and high Sulfur Tolerance and Theoretical Design
Selective catalytic reduction (SCR) of nitrogen oxides (NO x ) using ammonia (NH 3 ) is currently the main technology for flue gas denitration. However, the currently widely used commercial catalysts (such as V 2 O 5 -WO 3 / TiO 2 , V 2 O 5 -MoO 3 / TiO 2 , etc.) have the disadvantages of high opera...
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| Published in: | E3S web of conferences 2020-01, Vol.213, p.1012 |
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| creator | Zhang, Yufei |
| description | Selective catalytic reduction (SCR) of nitrogen oxides (NO
x
) using ammonia (NH
3
) is currently the main technology for flue gas denitration. However, the currently widely used commercial catalysts (such as V
2
O
5
-WO
3
/ TiO
2
, V
2
O
5
-MoO
3
/ TiO
2
, etc.) have the disadvantages of high operating temperature, narrow active temperature window, and high catalytic cost. Therefore, in recent years, researchers have devoted themselves to the development of low-cost and efficient low-temperature SCR catalytic materials. This paper summarizes the research progress of low-temperature (less than 250 °C) selective catalytic reduction of NO
x
by unsupported metal oxide catalysts, supported metal oxide catalysts, precious metals, and molecular sieve catalysts. Among them, manganese-based catalysts show good low-temperature selectivity and stability, and have good application prospects. Finally, the research directions of manganese low temperature SCR catalysts are prospected and theoretically designed based on the existing problems. |
| doi_str_mv | 10.1051/e3sconf/202021301012 |
| format | article |
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x
) using ammonia (NH
3
) is currently the main technology for flue gas denitration. However, the currently widely used commercial catalysts (such as V
2
O
5
-WO
3
/ TiO
2
, V
2
O
5
-MoO
3
/ TiO
2
, etc.) have the disadvantages of high operating temperature, narrow active temperature window, and high catalytic cost. Therefore, in recent years, researchers have devoted themselves to the development of low-cost and efficient low-temperature SCR catalytic materials. This paper summarizes the research progress of low-temperature (less than 250 °C) selective catalytic reduction of NO
x
by unsupported metal oxide catalysts, supported metal oxide catalysts, precious metals, and molecular sieve catalysts. Among them, manganese-based catalysts show good low-temperature selectivity and stability, and have good application prospects. Finally, the research directions of manganese low temperature SCR catalysts are prospected and theoretically designed based on the existing problems.</description><identifier>ISSN: 2267-1242</identifier><identifier>ISSN: 2555-0403</identifier><identifier>EISSN: 2267-1242</identifier><identifier>DOI: 10.1051/e3sconf/202021301012</identifier><language>eng</language><publisher>Les Ulis: EDP Sciences</publisher><subject>Ammonia ; Catalysts ; Chemical reduction ; Denitration ; Flue gas ; Heavy metals ; Low temperature ; Manganese ; Metal oxides ; Molecular sieves ; Molybdenum oxides ; Molybdenum trioxide ; Nitrogen oxides ; Operating temperature ; Photochemicals ; Selective catalytic reduction ; Selectivity ; Sulfur ; Temperature tolerance ; Titanium dioxide ; Vanadium pentoxide</subject><ispartof>E3S web of conferences, 2020-01, Vol.213, p.1012</ispartof><rights>2020. This work is licensed under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c2552-85968fea9ef4fbac0e72fa2e030a30330ead39b5ff9db196ddb69e24d76b2a653</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.proquest.com/docview/2465724381?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>309,310,314,780,784,789,790,23929,23930,25139,25752,27923,27924,37011,44589</link.rule.ids></links><search><contributor>Wei, X.</contributor><creatorcontrib>Zhang, Yufei</creatorcontrib><title>Review of Researches on SCR Catalyst with Low Temperature and high Sulfur Tolerance and Theoretical Design</title><title>E3S web of conferences</title><description>Selective catalytic reduction (SCR) of nitrogen oxides (NO
x
) using ammonia (NH
3
) is currently the main technology for flue gas denitration. However, the currently widely used commercial catalysts (such as V
2
O
5
-WO
3
/ TiO
2
, V
2
O
5
-MoO
3
/ TiO
2
, etc.) have the disadvantages of high operating temperature, narrow active temperature window, and high catalytic cost. Therefore, in recent years, researchers have devoted themselves to the development of low-cost and efficient low-temperature SCR catalytic materials. This paper summarizes the research progress of low-temperature (less than 250 °C) selective catalytic reduction of NO
x
by unsupported metal oxide catalysts, supported metal oxide catalysts, precious metals, and molecular sieve catalysts. Among them, manganese-based catalysts show good low-temperature selectivity and stability, and have good application prospects. Finally, the research directions of manganese low temperature SCR catalysts are prospected and theoretically designed based on the existing problems.</description><subject>Ammonia</subject><subject>Catalysts</subject><subject>Chemical reduction</subject><subject>Denitration</subject><subject>Flue gas</subject><subject>Heavy metals</subject><subject>Low temperature</subject><subject>Manganese</subject><subject>Metal oxides</subject><subject>Molecular sieves</subject><subject>Molybdenum oxides</subject><subject>Molybdenum trioxide</subject><subject>Nitrogen oxides</subject><subject>Operating temperature</subject><subject>Photochemicals</subject><subject>Selective catalytic reduction</subject><subject>Selectivity</subject><subject>Sulfur</subject><subject>Temperature tolerance</subject><subject>Titanium dioxide</subject><subject>Vanadium 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Yufei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2552-85968fea9ef4fbac0e72fa2e030a30330ead39b5ff9db196ddb69e24d76b2a653</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Ammonia</topic><topic>Catalysts</topic><topic>Chemical reduction</topic><topic>Denitration</topic><topic>Flue gas</topic><topic>Heavy metals</topic><topic>Low temperature</topic><topic>Manganese</topic><topic>Metal oxides</topic><topic>Molecular sieves</topic><topic>Molybdenum oxides</topic><topic>Molybdenum trioxide</topic><topic>Nitrogen oxides</topic><topic>Operating temperature</topic><topic>Photochemicals</topic><topic>Selective catalytic reduction</topic><topic>Selectivity</topic><topic>Sulfur</topic><topic>Temperature tolerance</topic><topic>Titanium dioxide</topic><topic>Vanadium pentoxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, 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Abstracts</collection><collection>Directory of Open Access Journals</collection><jtitle>E3S web of conferences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Yufei</au><au>Wei, X.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Review of Researches on SCR Catalyst with Low Temperature and high Sulfur Tolerance and Theoretical Design</atitle><jtitle>E3S web of conferences</jtitle><date>2020-01-01</date><risdate>2020</risdate><volume>213</volume><spage>1012</spage><pages>1012-</pages><issn>2267-1242</issn><issn>2555-0403</issn><eissn>2267-1242</eissn><abstract>Selective catalytic reduction (SCR) of nitrogen oxides (NO
x
) using ammonia (NH
3
) is currently the main technology for flue gas denitration. However, the currently widely used commercial catalysts (such as V
2
O
5
-WO
3
/ TiO
2
, V
2
O
5
-MoO
3
/ TiO
2
, etc.) have the disadvantages of high operating temperature, narrow active temperature window, and high catalytic cost. Therefore, in recent years, researchers have devoted themselves to the development of low-cost and efficient low-temperature SCR catalytic materials. This paper summarizes the research progress of low-temperature (less than 250 °C) selective catalytic reduction of NO
x
by unsupported metal oxide catalysts, supported metal oxide catalysts, precious metals, and molecular sieve catalysts. Among them, manganese-based catalysts show good low-temperature selectivity and stability, and have good application prospects. Finally, the research directions of manganese low temperature SCR catalysts are prospected and theoretically designed based on the existing problems.</abstract><cop>Les Ulis</cop><pub>EDP Sciences</pub><doi>10.1051/e3sconf/202021301012</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
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| ispartof | E3S web of conferences, 2020-01, Vol.213, p.1012 |
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| language | eng |
| recordid | cdi_doaj_primary_oai_doaj_org_article_a4d1d25dbeab4e619ea3c3b3a676eb05 |
| source | Publicly Available Content (ProQuest) |
| subjects | Ammonia Catalysts Chemical reduction Denitration Flue gas Heavy metals Low temperature Manganese Metal oxides Molecular sieves Molybdenum oxides Molybdenum trioxide Nitrogen oxides Operating temperature Photochemicals Selective catalytic reduction Selectivity Sulfur Temperature tolerance Titanium dioxide Vanadium pentoxide |
| title | Review of Researches on SCR Catalyst with Low Temperature and high Sulfur Tolerance and Theoretical Design |
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