Methanol dehydration to dimethyl ether over highly porous xerogel alumina catalyst: Flow rate effect
Template-free sol–gel synthesis in the absence of an acid catalyst resulted in mesoporous nanocrystalline γ-alumina, meso-γ-Al 2O 3, possessing high surface areas, 400–460 m 2/g, and high porosity, 1.4–1.9 cm 3/g. The prepared alumina was characterized by powder XRD, SEM, and N 2 adsorption for BET...
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| Veröffentlicht in: | Fuel processing technology 2010-11, Vol.91 (11), p.1505-1509 |
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| creator | Khaleel, Abbas |
| description | Template-free sol–gel synthesis in the absence of an acid catalyst resulted in mesoporous nanocrystalline γ-alumina, meso-γ-Al
2O
3, possessing high surface areas, 400–460
m
2/g, and high porosity, 1.4–1.9
cm
3/g. The prepared alumina was characterized by powder XRD, SEM, and N
2 adsorption for BET surface area and porosity measurements. FTIR spectroscopy was employed to study the catalytic activity of meso-γ-Al
2O
3 and commercial γ-alumina, com-γ-Al
2O
3, in the dehydration reaction of methanol to dimethyl ether, DME. The prepared meso-γ-Al
2O
3 showed higher catalytic activity than the commercial catalyst with a conversion around 86% and DME selectivity around 99%. The products' selectivity showed a significant dependence on the flow rate of the feed gas stream. As the flow rate increased, the selectivity to DME increased on the account of the minor products, CO
2 and CH
4. However, as the flow rate decreased, more CO
2 formed and the DME selectivity decreased. |
| doi_str_mv | 10.1016/j.fuproc.2010.05.028 |
| format | Article |
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2O
3, possessing high surface areas, 400–460
m
2/g, and high porosity, 1.4–1.9
cm
3/g. The prepared alumina was characterized by powder XRD, SEM, and N
2 adsorption for BET surface area and porosity measurements. FTIR spectroscopy was employed to study the catalytic activity of meso-γ-Al
2O
3 and commercial γ-alumina, com-γ-Al
2O
3, in the dehydration reaction of methanol to dimethyl ether, DME. The prepared meso-γ-Al
2O
3 showed higher catalytic activity than the commercial catalyst with a conversion around 86% and DME selectivity around 99%. The products' selectivity showed a significant dependence on the flow rate of the feed gas stream. As the flow rate increased, the selectivity to DME increased on the account of the minor products, CO
2 and CH
4. However, as the flow rate decreased, more CO
2 formed and the DME selectivity decreased.</description><identifier>ISSN: 0378-3820</identifier><identifier>EISSN: 1873-7188</identifier><identifier>DOI: 10.1016/j.fuproc.2010.05.028</identifier><identifier>CODEN: FPTEDY</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Carbon dioxide ; Catalysts ; Catalytic activity ; Dehydration ; Dimethyl ether ; Energy ; Energy. Thermal use of fuels ; Exact sciences and technology ; Flow rate ; Fuels ; Mesoporous ; Methanol ; Methyl alcohol ; Selectivity ; γ-Alumina</subject><ispartof>Fuel processing technology, 2010-11, Vol.91 (11), p.1505-1509</ispartof><rights>2010 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c513t-595aa92ce98542126b35294d952c5b2d62b797c4ba0509941b04276491e487ee3</citedby><cites>FETCH-LOGICAL-c513t-595aa92ce98542126b35294d952c5b2d62b797c4ba0509941b04276491e487ee3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.fuproc.2010.05.028$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=23263827$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Khaleel, Abbas</creatorcontrib><title>Methanol dehydration to dimethyl ether over highly porous xerogel alumina catalyst: Flow rate effect</title><title>Fuel processing technology</title><description>Template-free sol–gel synthesis in the absence of an acid catalyst resulted in mesoporous nanocrystalline γ-alumina, meso-γ-Al
2O
3, possessing high surface areas, 400–460
m
2/g, and high porosity, 1.4–1.9
cm
3/g. The prepared alumina was characterized by powder XRD, SEM, and N
2 adsorption for BET surface area and porosity measurements. FTIR spectroscopy was employed to study the catalytic activity of meso-γ-Al
2O
3 and commercial γ-alumina, com-γ-Al
2O
3, in the dehydration reaction of methanol to dimethyl ether, DME. The prepared meso-γ-Al
2O
3 showed higher catalytic activity than the commercial catalyst with a conversion around 86% and DME selectivity around 99%. The products' selectivity showed a significant dependence on the flow rate of the feed gas stream. As the flow rate increased, the selectivity to DME increased on the account of the minor products, CO
2 and CH
4. However, as the flow rate decreased, more CO
2 formed and the DME selectivity decreased.</description><subject>Applied sciences</subject><subject>Carbon dioxide</subject><subject>Catalysts</subject><subject>Catalytic activity</subject><subject>Dehydration</subject><subject>Dimethyl ether</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Exact sciences and technology</subject><subject>Flow rate</subject><subject>Fuels</subject><subject>Mesoporous</subject><subject>Methanol</subject><subject>Methyl alcohol</subject><subject>Selectivity</subject><subject>γ-Alumina</subject><issn>0378-3820</issn><issn>1873-7188</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNp9kEtP3DAQgK2qSN3S_oMefKnoJcvYiWObQ6UK8ZKouMDZcpwJ65U33tpZIP8eL4t65DIjzXzz0EfIDwZLBqw9XS-H3TZFt-RQSiCWwNUnsmBK1pVkSn0mC6ilqmrF4Qv5mvMaAITQckH6vzit7BgD7XE198lOPo50irT3m9KZAy0RE41PJaz84yrMdBtT3GX6gik-YqA27DZ-tNTZyYY5T2f0MsRnWlYhxWFAN30jR4MNGb-_52PycHlxf35d3d5d3Zz_ua2cYPVUCS2s1dyhVqLhjLddLbhuei24Ex3vW95JLV3TWRCgdcM6aLhsG82wURKxPiYnh71Fxr8d5slsfHYYgh2xfGxUzTjImreF_PUhySRoqTTnqqDNAXUp5pxwMNvkNzbNhoHZ6zdrc9Bv9voNCANvYz_fL9jsbBiSHZ3P_2f5_gvFZeF-HzgsYp48JpOdx9Fh71NRZ_roPz70Ck5dnOo</recordid><startdate>20101101</startdate><enddate>20101101</enddate><creator>Khaleel, Abbas</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QQ</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope></search><sort><creationdate>20101101</creationdate><title>Methanol dehydration to dimethyl ether over highly porous xerogel alumina catalyst: Flow rate effect</title><author>Khaleel, Abbas</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c513t-595aa92ce98542126b35294d952c5b2d62b797c4ba0509941b04276491e487ee3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Applied sciences</topic><topic>Carbon dioxide</topic><topic>Catalysts</topic><topic>Catalytic activity</topic><topic>Dehydration</topic><topic>Dimethyl ether</topic><topic>Energy</topic><topic>Energy. Thermal use of fuels</topic><topic>Exact sciences and technology</topic><topic>Flow rate</topic><topic>Fuels</topic><topic>Mesoporous</topic><topic>Methanol</topic><topic>Methyl alcohol</topic><topic>Selectivity</topic><topic>γ-Alumina</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Khaleel, Abbas</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><jtitle>Fuel processing technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Khaleel, Abbas</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Methanol dehydration to dimethyl ether over highly porous xerogel alumina catalyst: Flow rate effect</atitle><jtitle>Fuel processing technology</jtitle><date>2010-11-01</date><risdate>2010</risdate><volume>91</volume><issue>11</issue><spage>1505</spage><epage>1509</epage><pages>1505-1509</pages><issn>0378-3820</issn><eissn>1873-7188</eissn><coden>FPTEDY</coden><abstract>Template-free sol–gel synthesis in the absence of an acid catalyst resulted in mesoporous nanocrystalline γ-alumina, meso-γ-Al
2O
3, possessing high surface areas, 400–460
m
2/g, and high porosity, 1.4–1.9
cm
3/g. The prepared alumina was characterized by powder XRD, SEM, and N
2 adsorption for BET surface area and porosity measurements. FTIR spectroscopy was employed to study the catalytic activity of meso-γ-Al
2O
3 and commercial γ-alumina, com-γ-Al
2O
3, in the dehydration reaction of methanol to dimethyl ether, DME. The prepared meso-γ-Al
2O
3 showed higher catalytic activity than the commercial catalyst with a conversion around 86% and DME selectivity around 99%. The products' selectivity showed a significant dependence on the flow rate of the feed gas stream. As the flow rate increased, the selectivity to DME increased on the account of the minor products, CO
2 and CH
4. However, as the flow rate decreased, more CO
2 formed and the DME selectivity decreased.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.fuproc.2010.05.028</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Fuel processing technology, 2010-11, Vol.91 (11), p.1505-1509 |
| issn | 0378-3820 1873-7188 |
| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Applied sciences Carbon dioxide Catalysts Catalytic activity Dehydration Dimethyl ether Energy Energy. Thermal use of fuels Exact sciences and technology Flow rate Fuels Mesoporous Methanol Methyl alcohol Selectivity γ-Alumina |
| title | Methanol dehydration to dimethyl ether over highly porous xerogel alumina catalyst: Flow rate effect |
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