Thermodynamic equilibrium for the dehydration of 1-butanol to di-n-butyl ether
The thermodynamic equilibrium of the bimolecular dehydration of 1-butanol to di-n-butyl ether (DNBE) and water in the liquid phase was studied. Equilibrium experiments were performed at 4MPa and in the temperature range of 413–463K over the ion exchange resin Amberlyst-70. The thermodynamic equilibr...
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| Veröffentlicht in: | Chemical engineering research & design 2015-10, Vol.102, p.186-195 |
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| creator | Pérez-Maciá, M.A. Bringué, R. Iborra, M. Tejero, J. Cunill, F. |
| description | The thermodynamic equilibrium of the bimolecular dehydration of 1-butanol to di-n-butyl ether (DNBE) and water in the liquid phase was studied. Equilibrium experiments were performed at 4MPa and in the temperature range of 413–463K over the ion exchange resin Amberlyst-70. The thermodynamic equilibrium for the side reactions (dehydration to 1-butene, olefins isomerization, olefins hydration and branched ether formation) was also studied. The equilibrium constant for the dehydration reaction of 1-butanol to di-n-butyl ether and water was found to be independent of the operating temperature, within the limits of the experimental error (±5.2%). The experimental equilibrium constants at 413–463K allows to estimate the standard enthalpy change of reaction (ΔrH0(l)=−0.3±2.9kJmol−1) and the standard entropy change of reaction (ΔrS0(l)=26.8±6.7Jmol−1K−1). From these values the standard formation enthalpy (ΔfH0DNBE,(l)) and the molar entropy of DNBE (S0DNBE,(l)) at 298.15K were computed to be −370.5±10.9kJmol−1 and 408.3±6.8Jmol−1K−1, respectively. |
| doi_str_mv | 10.1016/j.cherd.2015.06.007 |
| format | Article |
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Equilibrium experiments were performed at 4MPa and in the temperature range of 413–463K over the ion exchange resin Amberlyst-70. The thermodynamic equilibrium for the side reactions (dehydration to 1-butene, olefins isomerization, olefins hydration and branched ether formation) was also studied. The equilibrium constant for the dehydration reaction of 1-butanol to di-n-butyl ether and water was found to be independent of the operating temperature, within the limits of the experimental error (±5.2%). The experimental equilibrium constants at 413–463K allows to estimate the standard enthalpy change of reaction (ΔrH0(l)=−0.3±2.9kJmol−1) and the standard entropy change of reaction (ΔrS0(l)=26.8±6.7Jmol−1K−1). From these values the standard formation enthalpy (ΔfH0DNBE,(l)) and the molar entropy of DNBE (S0DNBE,(l)) at 298.15K were computed to be −370.5±10.9kJmol−1 and 408.3±6.8Jmol−1K−1, respectively.</description><identifier>ISSN: 0263-8762</identifier><identifier>DOI: 10.1016/j.cherd.2015.06.007</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>1-Butanol dehydration ; Alcohol butílic ; Butanol ; Di-n-butyl ether (DNBE) ; Ethers ; Ion exchange resins ; Ion-exchange resin ; Resines de bescanvi iònic ; Thermodynamic equilibrium ; Èters</subject><ispartof>Chemical engineering research & design, 2015-10, Vol.102, p.186-195</ispartof><rights>2015 The Institution of Chemical Engineers</rights><rights>cc-by-nc-nd (c) Elsevier B.V., 2015 info:eu-repo/semantics/embargoedAccess <a href="http://creativecommons.org/licenses/by-nc-nd/3.0/es">http://creativecommons.org/licenses/by-nc-nd/3.0/es</a></rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c427t-c7f29769c5b46cda1c27206dca5435beeaee6901e85c40b9bc46abe756f4a56d3</citedby><cites>FETCH-LOGICAL-c427t-c7f29769c5b46cda1c27206dca5435beeaee6901e85c40b9bc46abe756f4a56d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0263876215002129$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,776,780,881,3537,26951,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Pérez-Maciá, M.A.</creatorcontrib><creatorcontrib>Bringué, R.</creatorcontrib><creatorcontrib>Iborra, M.</creatorcontrib><creatorcontrib>Tejero, J.</creatorcontrib><creatorcontrib>Cunill, F.</creatorcontrib><title>Thermodynamic equilibrium for the dehydration of 1-butanol to di-n-butyl ether</title><title>Chemical engineering research & design</title><description>The thermodynamic equilibrium of the bimolecular dehydration of 1-butanol to di-n-butyl ether (DNBE) and water in the liquid phase was studied. Equilibrium experiments were performed at 4MPa and in the temperature range of 413–463K over the ion exchange resin Amberlyst-70. The thermodynamic equilibrium for the side reactions (dehydration to 1-butene, olefins isomerization, olefins hydration and branched ether formation) was also studied. The equilibrium constant for the dehydration reaction of 1-butanol to di-n-butyl ether and water was found to be independent of the operating temperature, within the limits of the experimental error (±5.2%). The experimental equilibrium constants at 413–463K allows to estimate the standard enthalpy change of reaction (ΔrH0(l)=−0.3±2.9kJmol−1) and the standard entropy change of reaction (ΔrS0(l)=26.8±6.7Jmol−1K−1). From these values the standard formation enthalpy (ΔfH0DNBE,(l)) and the molar entropy of DNBE (S0DNBE,(l)) at 298.15K were computed to be −370.5±10.9kJmol−1 and 408.3±6.8Jmol−1K−1, respectively.</description><subject>1-Butanol dehydration</subject><subject>Alcohol butílic</subject><subject>Butanol</subject><subject>Di-n-butyl ether (DNBE)</subject><subject>Ethers</subject><subject>Ion exchange resins</subject><subject>Ion-exchange resin</subject><subject>Resines de bescanvi iònic</subject><subject>Thermodynamic equilibrium</subject><subject>Èters</subject><issn>0263-8762</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>XX2</sourceid><recordid>eNp9kM9KxDAQh3NQcF19Ai95gdZJ2ibbgwdZ_AeLXtZzSCdTNkvbaNoKfXtbXfDmYRgGft8M8zF2IyAVINTtMcUDRZdKEEUKKgXQZ2wFUmXJRit5wS77_ggAQuebFXvdz-E2uKmzrUdOn6NvfBX92PI6RD4ciDs6TC7awYeOh5qLpBoH24WGD4E7n3TLPDWc5my8Yue1bXq6PvU1e3982G-fk93b08v2fpdgLvWQoK5lqVWJRZUrdFag1BKUQ1vkWVERWSJVgqBNgTlUZYW5shXpQtW5LZTL1kz87sV-RBMJKaIdTLD-b1hKgpZGKim1mJnsxMTQ95Fq8xF9a-NkBJhFnTmaH3VmUWdAmVndTN39UjS_8-Upmh49dUjOz5cG44L_l_8G5F57lA</recordid><startdate>20151001</startdate><enddate>20151001</enddate><creator>Pérez-Maciá, M.A.</creator><creator>Bringué, R.</creator><creator>Iborra, M.</creator><creator>Tejero, J.</creator><creator>Cunill, F.</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>XX2</scope></search><sort><creationdate>20151001</creationdate><title>Thermodynamic equilibrium for the dehydration of 1-butanol to di-n-butyl ether</title><author>Pérez-Maciá, M.A. ; Bringué, R. ; Iborra, M. ; Tejero, J. ; Cunill, F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c427t-c7f29769c5b46cda1c27206dca5435beeaee6901e85c40b9bc46abe756f4a56d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>1-Butanol dehydration</topic><topic>Alcohol butílic</topic><topic>Butanol</topic><topic>Di-n-butyl ether (DNBE)</topic><topic>Ethers</topic><topic>Ion exchange resins</topic><topic>Ion-exchange resin</topic><topic>Resines de bescanvi iònic</topic><topic>Thermodynamic equilibrium</topic><topic>Èters</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pérez-Maciá, M.A.</creatorcontrib><creatorcontrib>Bringué, R.</creatorcontrib><creatorcontrib>Iborra, M.</creatorcontrib><creatorcontrib>Tejero, J.</creatorcontrib><creatorcontrib>Cunill, F.</creatorcontrib><collection>CrossRef</collection><collection>Recercat</collection><jtitle>Chemical engineering research & design</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pérez-Maciá, M.A.</au><au>Bringué, R.</au><au>Iborra, M.</au><au>Tejero, J.</au><au>Cunill, F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermodynamic equilibrium for the dehydration of 1-butanol to di-n-butyl ether</atitle><jtitle>Chemical engineering research & design</jtitle><date>2015-10-01</date><risdate>2015</risdate><volume>102</volume><spage>186</spage><epage>195</epage><pages>186-195</pages><issn>0263-8762</issn><abstract>The thermodynamic equilibrium of the bimolecular dehydration of 1-butanol to di-n-butyl ether (DNBE) and water in the liquid phase was studied. Equilibrium experiments were performed at 4MPa and in the temperature range of 413–463K over the ion exchange resin Amberlyst-70. The thermodynamic equilibrium for the side reactions (dehydration to 1-butene, olefins isomerization, olefins hydration and branched ether formation) was also studied. The equilibrium constant for the dehydration reaction of 1-butanol to di-n-butyl ether and water was found to be independent of the operating temperature, within the limits of the experimental error (±5.2%). The experimental equilibrium constants at 413–463K allows to estimate the standard enthalpy change of reaction (ΔrH0(l)=−0.3±2.9kJmol−1) and the standard entropy change of reaction (ΔrS0(l)=26.8±6.7Jmol−1K−1). From these values the standard formation enthalpy (ΔfH0DNBE,(l)) and the molar entropy of DNBE (S0DNBE,(l)) at 298.15K were computed to be −370.5±10.9kJmol−1 and 408.3±6.8Jmol−1K−1, respectively.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.cherd.2015.06.007</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | 1-Butanol dehydration Alcohol butílic Butanol Di-n-butyl ether (DNBE) Ethers Ion exchange resins Ion-exchange resin Resines de bescanvi iònic Thermodynamic equilibrium Èters |
| title | Thermodynamic equilibrium for the dehydration of 1-butanol to di-n-butyl ether |
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