A new process for separating biofuel based on the salt + 1-butanol + water system
•A new process for separating biobutanol.•Biobutanol was recovered to the organic phase.•Most of water was attracted to the aqueous phase.•>97% salt-free biobutanol was obtained. Compared with bioethanol, biobutanol with higher energy density and lower vapor pressure is more suitable as a fuel fo...
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| Veröffentlicht in: | Fuel (Guildford) 2020-10, Vol.278, p.118402, Article 118402 |
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| creator | Fu, Chuhan Li, Zhuoxi Song, Wenli Yi, Conghua Xie, Shaoqu |
| description | •A new process for separating biobutanol.•Biobutanol was recovered to the organic phase.•Most of water was attracted to the aqueous phase.•>97% salt-free biobutanol was obtained.
Compared with bioethanol, biobutanol with higher energy density and lower vapor pressure is more suitable as a fuel for motor engines. However, the typical low acetone-butanol-ethanol (ABE) concentration hinders the competitiveness of biobutanol because of 1-butanol tolerance. In addition, the dehydration of 1-butanol involves the separation of 1-butanol + water heterogeneous azeotrope, which was usually achieved in a two-column distillation + decantation system. A new process based on the determination of the salt + 1-butanol + water system was proposed to separate biobutanol from a 1-butanol + water system. The salting out resulted in the formation of an organic solvent-rich phase and an aqueous phase. All the 1-butanol in the water-rich phase was recovered to the organic phase, and most of the water in the 1-butanol-rich phase was attracted to the aqueous phase by the salting-out effects of the electrolytes, namely potassium carbonate, dipotassium hydrogen phosphate, tripotassium phosphate, and potassium pyrophosphate. This effect produces a top phase containing greater than 97% salt-free 1-butanol. The salting-out effect, the solubility, and the solvation effect of an electrolyte play essential roles in the separation of 1-butanol. |
| doi_str_mv | 10.1016/j.fuel.2020.118402 |
| format | Article |
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Compared with bioethanol, biobutanol with higher energy density and lower vapor pressure is more suitable as a fuel for motor engines. However, the typical low acetone-butanol-ethanol (ABE) concentration hinders the competitiveness of biobutanol because of 1-butanol tolerance. In addition, the dehydration of 1-butanol involves the separation of 1-butanol + water heterogeneous azeotrope, which was usually achieved in a two-column distillation + decantation system. A new process based on the determination of the salt + 1-butanol + water system was proposed to separate biobutanol from a 1-butanol + water system. The salting out resulted in the formation of an organic solvent-rich phase and an aqueous phase. All the 1-butanol in the water-rich phase was recovered to the organic phase, and most of the water in the 1-butanol-rich phase was attracted to the aqueous phase by the salting-out effects of the electrolytes, namely potassium carbonate, dipotassium hydrogen phosphate, tripotassium phosphate, and potassium pyrophosphate. This effect produces a top phase containing greater than 97% salt-free 1-butanol. The salting-out effect, the solubility, and the solvation effect of an electrolyte play essential roles in the separation of 1-butanol.</description><identifier>ISSN: 0016-2361</identifier><identifier>EISSN: 1873-7153</identifier><identifier>DOI: 10.1016/j.fuel.2020.118402</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Acetone ; Biobutanol ; Biofuel, salting-out ; Biofuels ; Butanol ; Competitiveness ; Decantation ; Dehydration ; Distillation ; Distilled water ; Electrolytes ; Ethanol ; Flux density ; Potassium ; Potassium carbonate ; Potassium phosphate ; Potassium phosphates ; Recovery ; Salting ; Salts ; Separation ; Setschenow equation ; Solvation ; Vapor pressure</subject><ispartof>Fuel (Guildford), 2020-10, Vol.278, p.118402, Article 118402</ispartof><rights>2020 Elsevier Ltd</rights><rights>Copyright Elsevier BV Oct 15, 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c328t-3f3a5842c6ec7a8e1b5cedef4ba76524d06b53ae56794d632fea6e57b01bacde3</citedby><cites>FETCH-LOGICAL-c328t-3f3a5842c6ec7a8e1b5cedef4ba76524d06b53ae56794d632fea6e57b01bacde3</cites><orcidid>0000-0001-5829-0045</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.fuel.2020.118402$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids></links><search><creatorcontrib>Fu, Chuhan</creatorcontrib><creatorcontrib>Li, Zhuoxi</creatorcontrib><creatorcontrib>Song, Wenli</creatorcontrib><creatorcontrib>Yi, Conghua</creatorcontrib><creatorcontrib>Xie, Shaoqu</creatorcontrib><title>A new process for separating biofuel based on the salt + 1-butanol + water system</title><title>Fuel (Guildford)</title><description>•A new process for separating biobutanol.•Biobutanol was recovered to the organic phase.•Most of water was attracted to the aqueous phase.•>97% salt-free biobutanol was obtained.
Compared with bioethanol, biobutanol with higher energy density and lower vapor pressure is more suitable as a fuel for motor engines. However, the typical low acetone-butanol-ethanol (ABE) concentration hinders the competitiveness of biobutanol because of 1-butanol tolerance. In addition, the dehydration of 1-butanol involves the separation of 1-butanol + water heterogeneous azeotrope, which was usually achieved in a two-column distillation + decantation system. A new process based on the determination of the salt + 1-butanol + water system was proposed to separate biobutanol from a 1-butanol + water system. The salting out resulted in the formation of an organic solvent-rich phase and an aqueous phase. All the 1-butanol in the water-rich phase was recovered to the organic phase, and most of the water in the 1-butanol-rich phase was attracted to the aqueous phase by the salting-out effects of the electrolytes, namely potassium carbonate, dipotassium hydrogen phosphate, tripotassium phosphate, and potassium pyrophosphate. This effect produces a top phase containing greater than 97% salt-free 1-butanol. The salting-out effect, the solubility, and the solvation effect of an electrolyte play essential roles in the separation of 1-butanol.</description><subject>Acetone</subject><subject>Biobutanol</subject><subject>Biofuel, salting-out</subject><subject>Biofuels</subject><subject>Butanol</subject><subject>Competitiveness</subject><subject>Decantation</subject><subject>Dehydration</subject><subject>Distillation</subject><subject>Distilled water</subject><subject>Electrolytes</subject><subject>Ethanol</subject><subject>Flux density</subject><subject>Potassium</subject><subject>Potassium carbonate</subject><subject>Potassium phosphate</subject><subject>Potassium phosphates</subject><subject>Recovery</subject><subject>Salting</subject><subject>Salts</subject><subject>Separation</subject><subject>Setschenow equation</subject><subject>Solvation</subject><subject>Vapor pressure</subject><issn>0016-2361</issn><issn>1873-7153</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9UMtOwzAQtBBIlMIPcLLEEaX4EdtB4lJVvKRKXOjZsp0NJEqTYjtU_Zt-S78Ml3DmtNrVzOzMIHRNyYwSKu-aWTVAO2OEpQMtcsJO0IQWimeKCn6KJiShMsYlPUcXITSEEFWIfIJWc9zBFm987yAEXPUeB9gYb2LdfWBb90ddbE2AEvcdjp-Ag2njYX972NPMDtF0ffu7bU2ERN6FCOtLdFaZNsDV35yi1dPj--IlW749vy7my8xxVsSMV9yIImdOglOmAGqFgxKq3BolBctLIq3gBoRU93kpOavASBDKEmqNK4FP0c2om_x_DRCibvrBd-mlZnkuFVMpd0KxEeV8H4KHSm98vTZ-pynRx_p0o48x9bE-PdaXSA8jCZL_7xq8Dq6GLvmrPbioy77-j_4DeaJ70w</recordid><startdate>20201015</startdate><enddate>20201015</enddate><creator>Fu, Chuhan</creator><creator>Li, Zhuoxi</creator><creator>Song, Wenli</creator><creator>Yi, Conghua</creator><creator>Xie, Shaoqu</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope><orcidid>https://orcid.org/0000-0001-5829-0045</orcidid></search><sort><creationdate>20201015</creationdate><title>A new process for separating biofuel based on the salt + 1-butanol + water system</title><author>Fu, Chuhan ; Li, Zhuoxi ; Song, Wenli ; Yi, Conghua ; Xie, Shaoqu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-3f3a5842c6ec7a8e1b5cedef4ba76524d06b53ae56794d632fea6e57b01bacde3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Acetone</topic><topic>Biobutanol</topic><topic>Biofuel, salting-out</topic><topic>Biofuels</topic><topic>Butanol</topic><topic>Competitiveness</topic><topic>Decantation</topic><topic>Dehydration</topic><topic>Distillation</topic><topic>Distilled water</topic><topic>Electrolytes</topic><topic>Ethanol</topic><topic>Flux density</topic><topic>Potassium</topic><topic>Potassium carbonate</topic><topic>Potassium phosphate</topic><topic>Potassium phosphates</topic><topic>Recovery</topic><topic>Salting</topic><topic>Salts</topic><topic>Separation</topic><topic>Setschenow equation</topic><topic>Solvation</topic><topic>Vapor pressure</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fu, Chuhan</creatorcontrib><creatorcontrib>Li, Zhuoxi</creatorcontrib><creatorcontrib>Song, Wenli</creatorcontrib><creatorcontrib>Yi, Conghua</creatorcontrib><creatorcontrib>Xie, Shaoqu</creatorcontrib><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Materials Business File</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Fuel (Guildford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fu, Chuhan</au><au>Li, Zhuoxi</au><au>Song, Wenli</au><au>Yi, Conghua</au><au>Xie, Shaoqu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A new process for separating biofuel based on the salt + 1-butanol + water system</atitle><jtitle>Fuel (Guildford)</jtitle><date>2020-10-15</date><risdate>2020</risdate><volume>278</volume><spage>118402</spage><pages>118402-</pages><artnum>118402</artnum><issn>0016-2361</issn><eissn>1873-7153</eissn><abstract>•A new process for separating biobutanol.•Biobutanol was recovered to the organic phase.•Most of water was attracted to the aqueous phase.•>97% salt-free biobutanol was obtained.
Compared with bioethanol, biobutanol with higher energy density and lower vapor pressure is more suitable as a fuel for motor engines. However, the typical low acetone-butanol-ethanol (ABE) concentration hinders the competitiveness of biobutanol because of 1-butanol tolerance. In addition, the dehydration of 1-butanol involves the separation of 1-butanol + water heterogeneous azeotrope, which was usually achieved in a two-column distillation + decantation system. A new process based on the determination of the salt + 1-butanol + water system was proposed to separate biobutanol from a 1-butanol + water system. The salting out resulted in the formation of an organic solvent-rich phase and an aqueous phase. All the 1-butanol in the water-rich phase was recovered to the organic phase, and most of the water in the 1-butanol-rich phase was attracted to the aqueous phase by the salting-out effects of the electrolytes, namely potassium carbonate, dipotassium hydrogen phosphate, tripotassium phosphate, and potassium pyrophosphate. This effect produces a top phase containing greater than 97% salt-free 1-butanol. The salting-out effect, the solubility, and the solvation effect of an electrolyte play essential roles in the separation of 1-butanol.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.fuel.2020.118402</doi><orcidid>https://orcid.org/0000-0001-5829-0045</orcidid></addata></record> |
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| subjects | Acetone Biobutanol Biofuel, salting-out Biofuels Butanol Competitiveness Decantation Dehydration Distillation Distilled water Electrolytes Ethanol Flux density Potassium Potassium carbonate Potassium phosphate Potassium phosphates Recovery Salting Salts Separation Setschenow equation Solvation Vapor pressure |
| title | A new process for separating biofuel based on the salt + 1-butanol + water system |
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