Pervaporation as a means of recovering ethanol from lignocellulosic bioconversions
Fermentation of AFEX-treated and enzymatically hydrolyzed forages and agricultural residues resulted in weak ethanol concentration in broths (maximum 5 g/L). A porous ethanol-selective membrane was evaluated on a model solution (2 wt/wt% ethanol) using pervaporation process. When used under permeate...
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| Veröffentlicht in: | Desalination 2009-10, Vol.247 (1), p.509-517 |
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| creator | Aroujalian, Abdolreza Raisi, Ahmadreza |
| description | Fermentation of AFEX-treated and enzymatically hydrolyzed forages and agricultural residues resulted in weak ethanol concentration in broths (maximum 5 g/L). A porous ethanol-selective membrane was evaluated on a model solution (2 wt/wt% ethanol) using pervaporation process. When used under permeate-side pressure of 20 mmHg, at feed temperature of 30°C and at a feed Re = 2000, a porous polytetrafluoroethylene (PTFE) membrane (0.2 μm pore diameter) produced a maximum ethanol flux of 36 g/m
2 h with selectivity near 1.66. Increasing feed temperature to 60°C resulted in 465 g/m
2 h for the ethanol flux but the selectivity was around 2.25. Decreasing the permeate-side pressure to 10 mmHg at 30°C increased the ethanol flux to 86 g/m
2 h and the selectivity to near 2.85. Two non-porous membranes are presently being investigated. Preliminary results with 10 μm thick polydimethylsiloxane and polyoctylmethylsiloxane membranes showed an increased selectivity to a value near nine. However, the ethanol and total fluxes are greatly reduced, even at a working pressure of 1 mmHg. |
| doi_str_mv | 10.1016/j.desal.2008.08.003 |
| format | Article |
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2 h with selectivity near 1.66. Increasing feed temperature to 60°C resulted in 465 g/m
2 h for the ethanol flux but the selectivity was around 2.25. Decreasing the permeate-side pressure to 10 mmHg at 30°C increased the ethanol flux to 86 g/m
2 h and the selectivity to near 2.85. Two non-porous membranes are presently being investigated. Preliminary results with 10 μm thick polydimethylsiloxane and polyoctylmethylsiloxane membranes showed an increased selectivity to a value near nine. However, the ethanol and total fluxes are greatly reduced, even at a working pressure of 1 mmHg.</description><identifier>ISSN: 0011-9164</identifier><identifier>EISSN: 1873-4464</identifier><identifier>DOI: 10.1016/j.desal.2008.08.003</identifier><identifier>CODEN: DSLNAH</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Bioconversion ; Biological and medical sciences ; Biotechnology ; Chemical engineering ; Ethanol ; Ethyl alcohol ; Exact sciences and technology ; Fermentation products ; Flux ; Fundamental and applied biological sciences. Psychology ; Membrane separation (reverse osmosis, dialysis...) ; Membranes ; Methods. Procedures. Technologies ; Others ; Pervaporation ; Pollution ; Polytetrafluoroethylene (PTFE) membrane ; Polytetrafluoroethylenes ; Selectivity ; Various methods and equipments</subject><ispartof>Desalination, 2009-10, Vol.247 (1), p.509-517</ispartof><rights>2009</rights><rights>2009 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c426t-c057741548e4cdc37b61842dd12193264f3a9ffd4462ec24c3e4f0ee04beb053</citedby><cites>FETCH-LOGICAL-c426t-c057741548e4cdc37b61842dd12193264f3a9ffd4462ec24c3e4f0ee04beb053</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.desal.2008.08.003$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,778,782,3539,27911,27912,45982</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=21980043$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Aroujalian, Abdolreza</creatorcontrib><creatorcontrib>Raisi, Ahmadreza</creatorcontrib><title>Pervaporation as a means of recovering ethanol from lignocellulosic bioconversions</title><title>Desalination</title><description>Fermentation of AFEX-treated and enzymatically hydrolyzed forages and agricultural residues resulted in weak ethanol concentration in broths (maximum 5 g/L). A porous ethanol-selective membrane was evaluated on a model solution (2 wt/wt% ethanol) using pervaporation process. When used under permeate-side pressure of 20 mmHg, at feed temperature of 30°C and at a feed Re = 2000, a porous polytetrafluoroethylene (PTFE) membrane (0.2 μm pore diameter) produced a maximum ethanol flux of 36 g/m
2 h with selectivity near 1.66. Increasing feed temperature to 60°C resulted in 465 g/m
2 h for the ethanol flux but the selectivity was around 2.25. Decreasing the permeate-side pressure to 10 mmHg at 30°C increased the ethanol flux to 86 g/m
2 h and the selectivity to near 2.85. Two non-porous membranes are presently being investigated. Preliminary results with 10 μm thick polydimethylsiloxane and polyoctylmethylsiloxane membranes showed an increased selectivity to a value near nine. However, the ethanol and total fluxes are greatly reduced, even at a working pressure of 1 mmHg.</description><subject>Applied sciences</subject><subject>Bioconversion</subject><subject>Biological and medical sciences</subject><subject>Biotechnology</subject><subject>Chemical engineering</subject><subject>Ethanol</subject><subject>Ethyl alcohol</subject><subject>Exact sciences and technology</subject><subject>Fermentation products</subject><subject>Flux</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Membrane separation (reverse osmosis, dialysis...)</subject><subject>Membranes</subject><subject>Methods. Procedures. Technologies</subject><subject>Others</subject><subject>Pervaporation</subject><subject>Pollution</subject><subject>Polytetrafluoroethylene (PTFE) membrane</subject><subject>Polytetrafluoroethylenes</subject><subject>Selectivity</subject><subject>Various methods and equipments</subject><issn>0011-9164</issn><issn>1873-4464</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqNkU-LFDEQxYMoOK5-Ai-56K1nK0lN_zl4kEV3hQVl2XvIpCtrhp5kTPUM-O037SwedaGgCPzq5VU9Id4rWCtQ7eVuPRK7aa0B-vVSYF6Ileo70yC2-FKsAJRqBtXia_GGeVefejBmJe5-UDm5Qy5ujjlJx9LJPbnEMgdZyOcTlZgeJM0_XcqTDCXv5RQfUvY0Tccpc_RyG7PPqZJcNfiteBXcxPTuqV-I-69f7q9umtvv19-uPt82HnU7Nx42XYdqgz2hH73ptq3qUY-j0mowusVg3BDCWBfQ5DV6QxiACHBLW9iYC_HxLHso-deReLb7yIsplygf2RrsBuyV-S-ooQddnTwDrIqooYLmDPqSmQsFeyhx78pvq8Augdid_ROIXQKxS8Hi48OTvGPvplBc8pH_jtatewBcuE9njurxTpGKZR8peRpjDWS2Y47__OcRAHGidg</recordid><startdate>20091001</startdate><enddate>20091001</enddate><creator>Aroujalian, Abdolreza</creator><creator>Raisi, Ahmadreza</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><scope>7QO</scope><scope>7ST</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope><scope>P64</scope><scope>SOI</scope></search><sort><creationdate>20091001</creationdate><title>Pervaporation as a means of recovering ethanol from lignocellulosic bioconversions</title><author>Aroujalian, Abdolreza ; Raisi, Ahmadreza</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c426t-c057741548e4cdc37b61842dd12193264f3a9ffd4462ec24c3e4f0ee04beb053</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Applied sciences</topic><topic>Bioconversion</topic><topic>Biological and medical sciences</topic><topic>Biotechnology</topic><topic>Chemical engineering</topic><topic>Ethanol</topic><topic>Ethyl alcohol</topic><topic>Exact sciences and technology</topic><topic>Fermentation products</topic><topic>Flux</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Membrane separation (reverse osmosis, dialysis...)</topic><topic>Membranes</topic><topic>Methods. Procedures. Technologies</topic><topic>Others</topic><topic>Pervaporation</topic><topic>Pollution</topic><topic>Polytetrafluoroethylene (PTFE) membrane</topic><topic>Polytetrafluoroethylenes</topic><topic>Selectivity</topic><topic>Various methods and equipments</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Aroujalian, Abdolreza</creatorcontrib><creatorcontrib>Raisi, Ahmadreza</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>Environment Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><jtitle>Desalination</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Aroujalian, Abdolreza</au><au>Raisi, Ahmadreza</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pervaporation as a means of recovering ethanol from lignocellulosic bioconversions</atitle><jtitle>Desalination</jtitle><date>2009-10-01</date><risdate>2009</risdate><volume>247</volume><issue>1</issue><spage>509</spage><epage>517</epage><pages>509-517</pages><issn>0011-9164</issn><eissn>1873-4464</eissn><coden>DSLNAH</coden><abstract>Fermentation of AFEX-treated and enzymatically hydrolyzed forages and agricultural residues resulted in weak ethanol concentration in broths (maximum 5 g/L). A porous ethanol-selective membrane was evaluated on a model solution (2 wt/wt% ethanol) using pervaporation process. When used under permeate-side pressure of 20 mmHg, at feed temperature of 30°C and at a feed Re = 2000, a porous polytetrafluoroethylene (PTFE) membrane (0.2 μm pore diameter) produced a maximum ethanol flux of 36 g/m
2 h with selectivity near 1.66. Increasing feed temperature to 60°C resulted in 465 g/m
2 h for the ethanol flux but the selectivity was around 2.25. Decreasing the permeate-side pressure to 10 mmHg at 30°C increased the ethanol flux to 86 g/m
2 h and the selectivity to near 2.85. Two non-porous membranes are presently being investigated. Preliminary results with 10 μm thick polydimethylsiloxane and polyoctylmethylsiloxane membranes showed an increased selectivity to a value near nine. However, the ethanol and total fluxes are greatly reduced, even at a working pressure of 1 mmHg.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.desal.2008.08.003</doi><tpages>9</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete - AutoHoldings |
| subjects | Applied sciences Bioconversion Biological and medical sciences Biotechnology Chemical engineering Ethanol Ethyl alcohol Exact sciences and technology Fermentation products Flux Fundamental and applied biological sciences. Psychology Membrane separation (reverse osmosis, dialysis...) Membranes Methods. Procedures. Technologies Others Pervaporation Pollution Polytetrafluoroethylene (PTFE) membrane Polytetrafluoroethylenes Selectivity Various methods and equipments |
| title | Pervaporation as a means of recovering ethanol from lignocellulosic bioconversions |
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