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Dominant reaction pathway for methanol conversion to propene over high silicon H-ZSM-5
The reaction pathway for propene formation in methanol to propene (MTP) process over a high silica H-ZSM-5 catalyst has been investigated in a fixed bed reactor by comparing the experimental results from three kinds of feeding: alkene only, methanol only and mixed alkene and methanol. The results sh...
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| Published in: | Chemical engineering science 2011-10, Vol.66 (20), p.4722-4732 |
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| cites | cdi_FETCH-LOGICAL-c453t-cc44294948c729ee6ec513384d574388e4665404dcf00f37ccefbfd6cd4e37c23 |
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| container_title | Chemical engineering science |
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| creator | Wu, Wenzhang Guo, Wenyao Xiao, Wende Luo, Man |
| description | The reaction pathway for propene formation in methanol to propene (MTP) process over a high silica H-ZSM-5 catalyst has been investigated in a fixed bed reactor by comparing the experimental results from three kinds of feeding: alkene only, methanol only and mixed alkene and methanol. The results show that alkene methylation with methanol is dominant for the case of methanol and individual C
3–C
6 alkenes co-feeding, C
2
= is almost un-reactive. C
7
= cracks to propene and butene immediately whether co-fed with methanol or not, and C
6
= cracks to propene readily when reacted alone. Oligomerization occurs but is suppressed by the co-fed methanol for light alkenes of C
2–C
5. Methylation-cracking has been verified as the main reaction mechanism of a typical MTP process in which recycling of C
2
= and C
4
=–C
6
= to the reactor inlet is required. Based on the relative reactivities of alkenes towards methylation and inter-conversion, a reaction scheme has been presented including a cycle composed of a consecutive methylation from C
4
= through C
5
= to C
6
= and further to C
7
=, the β-scission of hexene and heptene for propene, and the α-scission of hexene for ethene as well.
► Methylation-cracking is the dominant reaction pathway in a typical MTP process. ► The rank of reactivities of C
2-C
6 alkenes towards methylation is C
5=>C
4=>C
6=>C
3=>C
2=. ► Propene is formed mainly from cracking of C
6=and C
7=via methylation of C
4=∼C
6=. ► Ethene is formed mainly from C
6=cracking. |
| doi_str_mv | 10.1016/j.ces.2011.06.036 |
| format | article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_893266902</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0009250911004131</els_id><sourcerecordid>1709769418</sourcerecordid><originalsourceid>FETCH-LOGICAL-c453t-cc44294948c729ee6ec513384d574388e4665404dcf00f37ccefbfd6cd4e37c23</originalsourceid><addsrcrecordid>eNp9kcFu1DAQhi0EEkvhATjhC4JLwjh2HFucUKEtUhGHUg5cLDOZdL3K2oudFvXtcbQVx56ssb_59eszY68FtAKE_rBrkUrbgRAt6BakfsI2wgyyUQr6p2wDALbperDP2YtSdnUcBgEb9vNz2ofo48IzeVxCivzgl-1ff8-nlPmelq2PaeaY4h3lsr4viR9yOlAknuod34abLS9hDpXhF82vq29N_5I9m_xc6NXDecKuz778OL1oLr-ffz39dNmg6uXSICrVWWWVwaGzRJqwF1IaNfaDksaQ0rpXoEacACY5INL0exo1jorq1MkT9u6YWxv9uaWyuH0oSPPsI6Xb4oyVndYWVvL9o6QYwA7aKmEqKo4o5lRKpskdctj7fO8EuNW227lq2622HWhXbdedtw_xvqCfp-wjhvJ_sVPKSjmsNd4cuckn529yZa6valBff6QzBkQlPh4Jqt7uAmVXMFBEGkMmXNyYwiM9_gHtep0Q</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1709769418</pqid></control><display><type>article</type><title>Dominant reaction pathway for methanol conversion to propene over high silicon H-ZSM-5</title><source>ScienceDirect Freedom Collection 2022-2024</source><creator>Wu, Wenzhang ; Guo, Wenyao ; Xiao, Wende ; Luo, Man</creator><creatorcontrib>Wu, Wenzhang ; Guo, Wenyao ; Xiao, Wende ; Luo, Man</creatorcontrib><description>The reaction pathway for propene formation in methanol to propene (MTP) process over a high silica H-ZSM-5 catalyst has been investigated in a fixed bed reactor by comparing the experimental results from three kinds of feeding: alkene only, methanol only and mixed alkene and methanol. The results show that alkene methylation with methanol is dominant for the case of methanol and individual C
3–C
6 alkenes co-feeding, C
2
= is almost un-reactive. C
7
= cracks to propene and butene immediately whether co-fed with methanol or not, and C
6
= cracks to propene readily when reacted alone. Oligomerization occurs but is suppressed by the co-fed methanol for light alkenes of C
2–C
5. Methylation-cracking has been verified as the main reaction mechanism of a typical MTP process in which recycling of C
2
= and C
4
=–C
6
= to the reactor inlet is required. Based on the relative reactivities of alkenes towards methylation and inter-conversion, a reaction scheme has been presented including a cycle composed of a consecutive methylation from C
4
= through C
5
= to C
6
= and further to C
7
=, the β-scission of hexene and heptene for propene, and the α-scission of hexene for ethene as well.
► Methylation-cracking is the dominant reaction pathway in a typical MTP process. ► The rank of reactivities of C
2-C
6 alkenes towards methylation is C
5=>C
4=>C
6=>C
3=>C
2=. ► Propene is formed mainly from cracking of C
6=and C
7=via methylation of C
4=∼C
6=. ► Ethene is formed mainly from C
6=cracking.</description><identifier>ISSN: 0009-2509</identifier><identifier>EISSN: 1873-4405</identifier><identifier>DOI: 10.1016/j.ces.2011.06.036</identifier><identifier>CODEN: CESCAC</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Alkenes ; Applied sciences ; Catalysis ; Catalytic reactions ; Chemical engineering ; Chemical reactors ; Chemistry ; Cracks ; ethylene ; Exact sciences and technology ; General and physical chemistry ; Hexenes ; methanol ; Methanol to propene ; Methyl alcohol ; Methylation ; Model reduction ; Olefins ; Pathways ; Reaction pathway ; Reactors ; recycling ; silica ; silicon ; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry ; Zeolites</subject><ispartof>Chemical engineering science, 2011-10, Vol.66 (20), p.4722-4732</ispartof><rights>2011 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c453t-cc44294948c729ee6ec513384d574388e4665404dcf00f37ccefbfd6cd4e37c23</citedby><cites>FETCH-LOGICAL-c453t-cc44294948c729ee6ec513384d574388e4665404dcf00f37ccefbfd6cd4e37c23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24493372$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Wu, Wenzhang</creatorcontrib><creatorcontrib>Guo, Wenyao</creatorcontrib><creatorcontrib>Xiao, Wende</creatorcontrib><creatorcontrib>Luo, Man</creatorcontrib><title>Dominant reaction pathway for methanol conversion to propene over high silicon H-ZSM-5</title><title>Chemical engineering science</title><description>The reaction pathway for propene formation in methanol to propene (MTP) process over a high silica H-ZSM-5 catalyst has been investigated in a fixed bed reactor by comparing the experimental results from three kinds of feeding: alkene only, methanol only and mixed alkene and methanol. The results show that alkene methylation with methanol is dominant for the case of methanol and individual C
3–C
6 alkenes co-feeding, C
2
= is almost un-reactive. C
7
= cracks to propene and butene immediately whether co-fed with methanol or not, and C
6
= cracks to propene readily when reacted alone. Oligomerization occurs but is suppressed by the co-fed methanol for light alkenes of C
2–C
5. Methylation-cracking has been verified as the main reaction mechanism of a typical MTP process in which recycling of C
2
= and C
4
=–C
6
= to the reactor inlet is required. Based on the relative reactivities of alkenes towards methylation and inter-conversion, a reaction scheme has been presented including a cycle composed of a consecutive methylation from C
4
= through C
5
= to C
6
= and further to C
7
=, the β-scission of hexene and heptene for propene, and the α-scission of hexene for ethene as well.
► Methylation-cracking is the dominant reaction pathway in a typical MTP process. ► The rank of reactivities of C
2-C
6 alkenes towards methylation is C
5=>C
4=>C
6=>C
3=>C
2=. ► Propene is formed mainly from cracking of C
6=and C
7=via methylation of C
4=∼C
6=. ► Ethene is formed mainly from C
6=cracking.</description><subject>Alkenes</subject><subject>Applied sciences</subject><subject>Catalysis</subject><subject>Catalytic reactions</subject><subject>Chemical engineering</subject><subject>Chemical reactors</subject><subject>Chemistry</subject><subject>Cracks</subject><subject>ethylene</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Hexenes</subject><subject>methanol</subject><subject>Methanol to propene</subject><subject>Methyl alcohol</subject><subject>Methylation</subject><subject>Model reduction</subject><subject>Olefins</subject><subject>Pathways</subject><subject>Reaction pathway</subject><subject>Reactors</subject><subject>recycling</subject><subject>silica</subject><subject>silicon</subject><subject>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><subject>Zeolites</subject><issn>0009-2509</issn><issn>1873-4405</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp9kcFu1DAQhi0EEkvhATjhC4JLwjh2HFucUKEtUhGHUg5cLDOZdL3K2oudFvXtcbQVx56ssb_59eszY68FtAKE_rBrkUrbgRAt6BakfsI2wgyyUQr6p2wDALbperDP2YtSdnUcBgEb9vNz2ofo48IzeVxCivzgl-1ff8-nlPmelq2PaeaY4h3lsr4viR9yOlAknuod34abLS9hDpXhF82vq29N_5I9m_xc6NXDecKuz778OL1oLr-ffz39dNmg6uXSICrVWWWVwaGzRJqwF1IaNfaDksaQ0rpXoEacACY5INL0exo1jorq1MkT9u6YWxv9uaWyuH0oSPPsI6Xb4oyVndYWVvL9o6QYwA7aKmEqKo4o5lRKpskdctj7fO8EuNW227lq2622HWhXbdedtw_xvqCfp-wjhvJ_sVPKSjmsNd4cuckn529yZa6valBff6QzBkQlPh4Jqt7uAmVXMFBEGkMmXNyYwiM9_gHtep0Q</recordid><startdate>20111015</startdate><enddate>20111015</enddate><creator>Wu, Wenzhang</creator><creator>Guo, Wenyao</creator><creator>Xiao, Wende</creator><creator>Luo, Man</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>L7M</scope><scope>7ST</scope><scope>7TV</scope><scope>C1K</scope><scope>SOI</scope></search><sort><creationdate>20111015</creationdate><title>Dominant reaction pathway for methanol conversion to propene over high silicon H-ZSM-5</title><author>Wu, Wenzhang ; Guo, Wenyao ; Xiao, Wende ; Luo, Man</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c453t-cc44294948c729ee6ec513384d574388e4665404dcf00f37ccefbfd6cd4e37c23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Alkenes</topic><topic>Applied sciences</topic><topic>Catalysis</topic><topic>Catalytic reactions</topic><topic>Chemical engineering</topic><topic>Chemical reactors</topic><topic>Chemistry</topic><topic>Cracks</topic><topic>ethylene</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Hexenes</topic><topic>methanol</topic><topic>Methanol to propene</topic><topic>Methyl alcohol</topic><topic>Methylation</topic><topic>Model reduction</topic><topic>Olefins</topic><topic>Pathways</topic><topic>Reaction pathway</topic><topic>Reactors</topic><topic>recycling</topic><topic>silica</topic><topic>silicon</topic><topic>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</topic><topic>Zeolites</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, Wenzhang</creatorcontrib><creatorcontrib>Guo, Wenyao</creatorcontrib><creatorcontrib>Xiao, Wende</creatorcontrib><creatorcontrib>Luo, Man</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><collection>Pollution Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><jtitle>Chemical engineering science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wu, Wenzhang</au><au>Guo, Wenyao</au><au>Xiao, Wende</au><au>Luo, Man</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dominant reaction pathway for methanol conversion to propene over high silicon H-ZSM-5</atitle><jtitle>Chemical engineering science</jtitle><date>2011-10-15</date><risdate>2011</risdate><volume>66</volume><issue>20</issue><spage>4722</spage><epage>4732</epage><pages>4722-4732</pages><issn>0009-2509</issn><eissn>1873-4405</eissn><coden>CESCAC</coden><abstract>The reaction pathway for propene formation in methanol to propene (MTP) process over a high silica H-ZSM-5 catalyst has been investigated in a fixed bed reactor by comparing the experimental results from three kinds of feeding: alkene only, methanol only and mixed alkene and methanol. The results show that alkene methylation with methanol is dominant for the case of methanol and individual C
3–C
6 alkenes co-feeding, C
2
= is almost un-reactive. C
7
= cracks to propene and butene immediately whether co-fed with methanol or not, and C
6
= cracks to propene readily when reacted alone. Oligomerization occurs but is suppressed by the co-fed methanol for light alkenes of C
2–C
5. Methylation-cracking has been verified as the main reaction mechanism of a typical MTP process in which recycling of C
2
= and C
4
=–C
6
= to the reactor inlet is required. Based on the relative reactivities of alkenes towards methylation and inter-conversion, a reaction scheme has been presented including a cycle composed of a consecutive methylation from C
4
= through C
5
= to C
6
= and further to C
7
=, the β-scission of hexene and heptene for propene, and the α-scission of hexene for ethene as well.
► Methylation-cracking is the dominant reaction pathway in a typical MTP process. ► The rank of reactivities of C
2-C
6 alkenes towards methylation is C
5=>C
4=>C
6=>C
3=>C
2=. ► Propene is formed mainly from cracking of C
6=and C
7=via methylation of C
4=∼C
6=. ► Ethene is formed mainly from C
6=cracking.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.ces.2011.06.036</doi><tpages>11</tpages></addata></record> |
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| ispartof | Chemical engineering science, 2011-10, Vol.66 (20), p.4722-4732 |
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| language | eng |
| recordid | cdi_proquest_miscellaneous_893266902 |
| source | ScienceDirect Freedom Collection 2022-2024 |
| subjects | Alkenes Applied sciences Catalysis Catalytic reactions Chemical engineering Chemical reactors Chemistry Cracks ethylene Exact sciences and technology General and physical chemistry Hexenes methanol Methanol to propene Methyl alcohol Methylation Model reduction Olefins Pathways Reaction pathway Reactors recycling silica silicon Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry Zeolites |
| title | Dominant reaction pathway for methanol conversion to propene over high silicon H-ZSM-5 |
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