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Direct biodiesel production from wet spent coffee grounds
Utilization of waste spent coffee grounds (SCG) remains limited and requires pre-treatment before being discarded to avoid pollution to the environment. Lipids contained in SCG could be converted to biodiesel through an in situ transesterification method. Current in situ transesterification of wet S...
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| Published in: | RSC advances 2019-10, Vol.9 (6), p.3519-35116 |
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| Main Authors: | , , , , , , , |
| Format: | Article |
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| cites | cdi_FETCH-LOGICAL-c495t-946c8c777af4d41dde7ec882e43ef4b4dbee7c82e2f0fc5403b4605c7da3df953 |
| container_end_page | 35116 |
| container_issue | 6 |
| container_start_page | 3519 |
| container_title | RSC advances |
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| creator | Tarigan, Juliati Br Ginting, Mimpin Mubarokah, Siti Nurul Sebayang, Firman Karo-karo, Justaman Nguyen, Trung T Ginting, Junedi Sitepu, Eko K |
| description | Utilization of waste spent coffee grounds (SCG) remains limited and requires pre-treatment before being discarded to avoid pollution to the environment. Lipids contained in SCG could be converted to biodiesel through an
in situ
transesterification method. Current
in situ
transesterification of wet SCG biomass, conducted at high reaction temperature to reduce the water effect and reduce reaction time, is energy intensive. A new approach, which combines simultaneous extraction-transesterification in a single step using soxhlet apparatus, was developed to produce biodiesel directly from wet SCG biomass. A homogeneous base catalyst at a concentration of 0.75 M showed better catalytic activity than acid, with hexane as a co-solvent on fatty acid (FA) extraction efficiency and FA to fatty acid methyl ester (FAME) conversion efficiency. Studying the factorial effect of ratio of methanol to hexane and reaction time led to the highest FA to FAME conversion efficiency of 97% at a ratio of 1 : 2 and 30 min reaction time. In addition, the catalyst could be used five times without losing its activity. In term of energy consumption, the reactive extraction soxhlet (RES) method could save 38-99% of energy compared to existing methods.
Here, we demonstrate the direct biodiesel production from wet SCG in mild reaction temperature and short reaction time using reactive extraction Soxhlet (RES) method. |
| doi_str_mv | 10.1039/c9ra08038d |
| format | article |
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in situ
transesterification method. Current
in situ
transesterification of wet SCG biomass, conducted at high reaction temperature to reduce the water effect and reduce reaction time, is energy intensive. A new approach, which combines simultaneous extraction-transesterification in a single step using soxhlet apparatus, was developed to produce biodiesel directly from wet SCG biomass. A homogeneous base catalyst at a concentration of 0.75 M showed better catalytic activity than acid, with hexane as a co-solvent on fatty acid (FA) extraction efficiency and FA to fatty acid methyl ester (FAME) conversion efficiency. Studying the factorial effect of ratio of methanol to hexane and reaction time led to the highest FA to FAME conversion efficiency of 97% at a ratio of 1 : 2 and 30 min reaction time. In addition, the catalyst could be used five times without losing its activity. In term of energy consumption, the reactive extraction soxhlet (RES) method could save 38-99% of energy compared to existing methods.
Here, we demonstrate the direct biodiesel production from wet SCG in mild reaction temperature and short reaction time using reactive extraction Soxhlet (RES) method.</description><identifier>ISSN: 2046-2069</identifier><identifier>EISSN: 2046-2069</identifier><identifier>DOI: 10.1039/c9ra08038d</identifier><identifier>PMID: 35530672</identifier><language>eng</language><publisher>England: Royal Society of Chemistry</publisher><subject>Biodiesel fuels ; Biomass ; Catalysts ; Catalytic activity ; Chemistry ; Coffee ; Conversion ; Efficiency ; Electrical grounding ; Energy conservation ; Energy consumption ; Fatty acids ; Lipids ; Pretreatment ; Reaction time ; Transesterification ; Waste utilization ; Water pollution</subject><ispartof>RSC advances, 2019-10, Vol.9 (6), p.3519-35116</ispartof><rights>This journal is © The Royal Society of Chemistry.</rights><rights>Copyright Royal Society of Chemistry 2019</rights><rights>This journal is © The Royal Society of Chemistry 2019 The Royal Society of Chemistry</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c495t-946c8c777af4d41dde7ec882e43ef4b4dbee7c82e2f0fc5403b4605c7da3df953</citedby><cites>FETCH-LOGICAL-c495t-946c8c777af4d41dde7ec882e43ef4b4dbee7c82e2f0fc5403b4605c7da3df953</cites><orcidid>0000-0001-9482-1886 ; 0000-0001-5705-506X ; 0000-0003-3565-9027</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9074169/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9074169/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,885,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35530672$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Tarigan, Juliati Br</creatorcontrib><creatorcontrib>Ginting, Mimpin</creatorcontrib><creatorcontrib>Mubarokah, Siti Nurul</creatorcontrib><creatorcontrib>Sebayang, Firman</creatorcontrib><creatorcontrib>Karo-karo, Justaman</creatorcontrib><creatorcontrib>Nguyen, Trung T</creatorcontrib><creatorcontrib>Ginting, Junedi</creatorcontrib><creatorcontrib>Sitepu, Eko K</creatorcontrib><title>Direct biodiesel production from wet spent coffee grounds</title><title>RSC advances</title><addtitle>RSC Adv</addtitle><description>Utilization of waste spent coffee grounds (SCG) remains limited and requires pre-treatment before being discarded to avoid pollution to the environment. Lipids contained in SCG could be converted to biodiesel through an
in situ
transesterification method. Current
in situ
transesterification of wet SCG biomass, conducted at high reaction temperature to reduce the water effect and reduce reaction time, is energy intensive. A new approach, which combines simultaneous extraction-transesterification in a single step using soxhlet apparatus, was developed to produce biodiesel directly from wet SCG biomass. A homogeneous base catalyst at a concentration of 0.75 M showed better catalytic activity than acid, with hexane as a co-solvent on fatty acid (FA) extraction efficiency and FA to fatty acid methyl ester (FAME) conversion efficiency. Studying the factorial effect of ratio of methanol to hexane and reaction time led to the highest FA to FAME conversion efficiency of 97% at a ratio of 1 : 2 and 30 min reaction time. In addition, the catalyst could be used five times without losing its activity. In term of energy consumption, the reactive extraction soxhlet (RES) method could save 38-99% of energy compared to existing methods.
Here, we demonstrate the direct biodiesel production from wet SCG in mild reaction temperature and short reaction time using reactive extraction Soxhlet (RES) method.</description><subject>Biodiesel fuels</subject><subject>Biomass</subject><subject>Catalysts</subject><subject>Catalytic activity</subject><subject>Chemistry</subject><subject>Coffee</subject><subject>Conversion</subject><subject>Efficiency</subject><subject>Electrical grounding</subject><subject>Energy conservation</subject><subject>Energy consumption</subject><subject>Fatty acids</subject><subject>Lipids</subject><subject>Pretreatment</subject><subject>Reaction time</subject><subject>Transesterification</subject><subject>Waste utilization</subject><subject>Water pollution</subject><issn>2046-2069</issn><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9kc1rFEEQxRuJuCHuxbsywYsIY_pr-uMSCLsahQUhxHMz0129TpidHrtnIv739mY3m9VD6lJV1I_HKx5Cbwj-RDDTF1bHGivMlHuBTinmoqRY6JOjeYbmKd3hXKIiVJBXaMaqimEh6SnSyzaCHYumDa6FBF0xxOAmO7ahL3wMm-I3jEUaoB8LG7wHKNYxTL1Lr9FLX3cJ5vt-hn58-Xy7-Fquvl9_W1ytSst1NZaaC6uslLL23HHiHEiwSlHgDDxvuGsApM079djbimPWcIErK13NnNcVO0OXO91hajbgbHYS684Msd3U8Y8JdWv-vfTtT7MO90ZjyYnQWeDDXiCGXxOk0WzaZKHr6h7ClAwVgnDFlGQZff8fehem2Of3DGWEEqYU3gp-3FE2hpQi-IMZgs02FLPQN1cPoSwz_O7Y_gF9jCAD5zsgJnu4PqVqBucz8_Y5hv0FXmWdLg</recordid><startdate>20191030</startdate><enddate>20191030</enddate><creator>Tarigan, Juliati Br</creator><creator>Ginting, Mimpin</creator><creator>Mubarokah, Siti Nurul</creator><creator>Sebayang, Firman</creator><creator>Karo-karo, Justaman</creator><creator>Nguyen, Trung T</creator><creator>Ginting, Junedi</creator><creator>Sitepu, Eko K</creator><general>Royal Society of Chemistry</general><general>The Royal Society of Chemistry</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0001-9482-1886</orcidid><orcidid>https://orcid.org/0000-0001-5705-506X</orcidid><orcidid>https://orcid.org/0000-0003-3565-9027</orcidid></search><sort><creationdate>20191030</creationdate><title>Direct biodiesel production from wet spent coffee grounds</title><author>Tarigan, Juliati Br ; Ginting, Mimpin ; Mubarokah, Siti Nurul ; Sebayang, Firman ; Karo-karo, Justaman ; Nguyen, Trung T ; Ginting, Junedi ; Sitepu, Eko K</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c495t-946c8c777af4d41dde7ec882e43ef4b4dbee7c82e2f0fc5403b4605c7da3df953</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Biodiesel fuels</topic><topic>Biomass</topic><topic>Catalysts</topic><topic>Catalytic activity</topic><topic>Chemistry</topic><topic>Coffee</topic><topic>Conversion</topic><topic>Efficiency</topic><topic>Electrical grounding</topic><topic>Energy conservation</topic><topic>Energy consumption</topic><topic>Fatty acids</topic><topic>Lipids</topic><topic>Pretreatment</topic><topic>Reaction time</topic><topic>Transesterification</topic><topic>Waste utilization</topic><topic>Water pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tarigan, Juliati Br</creatorcontrib><creatorcontrib>Ginting, Mimpin</creatorcontrib><creatorcontrib>Mubarokah, Siti Nurul</creatorcontrib><creatorcontrib>Sebayang, Firman</creatorcontrib><creatorcontrib>Karo-karo, Justaman</creatorcontrib><creatorcontrib>Nguyen, Trung T</creatorcontrib><creatorcontrib>Ginting, Junedi</creatorcontrib><creatorcontrib>Sitepu, Eko K</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>RSC advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tarigan, Juliati Br</au><au>Ginting, Mimpin</au><au>Mubarokah, Siti Nurul</au><au>Sebayang, Firman</au><au>Karo-karo, Justaman</au><au>Nguyen, Trung T</au><au>Ginting, Junedi</au><au>Sitepu, Eko K</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Direct biodiesel production from wet spent coffee grounds</atitle><jtitle>RSC advances</jtitle><addtitle>RSC Adv</addtitle><date>2019-10-30</date><risdate>2019</risdate><volume>9</volume><issue>6</issue><spage>3519</spage><epage>35116</epage><pages>3519-35116</pages><issn>2046-2069</issn><eissn>2046-2069</eissn><abstract>Utilization of waste spent coffee grounds (SCG) remains limited and requires pre-treatment before being discarded to avoid pollution to the environment. Lipids contained in SCG could be converted to biodiesel through an
in situ
transesterification method. Current
in situ
transesterification of wet SCG biomass, conducted at high reaction temperature to reduce the water effect and reduce reaction time, is energy intensive. A new approach, which combines simultaneous extraction-transesterification in a single step using soxhlet apparatus, was developed to produce biodiesel directly from wet SCG biomass. A homogeneous base catalyst at a concentration of 0.75 M showed better catalytic activity than acid, with hexane as a co-solvent on fatty acid (FA) extraction efficiency and FA to fatty acid methyl ester (FAME) conversion efficiency. Studying the factorial effect of ratio of methanol to hexane and reaction time led to the highest FA to FAME conversion efficiency of 97% at a ratio of 1 : 2 and 30 min reaction time. In addition, the catalyst could be used five times without losing its activity. In term of energy consumption, the reactive extraction soxhlet (RES) method could save 38-99% of energy compared to existing methods.
Here, we demonstrate the direct biodiesel production from wet SCG in mild reaction temperature and short reaction time using reactive extraction Soxhlet (RES) method.</abstract><cop>England</cop><pub>Royal Society of Chemistry</pub><pmid>35530672</pmid><doi>10.1039/c9ra08038d</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0001-9482-1886</orcidid><orcidid>https://orcid.org/0000-0001-5705-506X</orcidid><orcidid>https://orcid.org/0000-0003-3565-9027</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | RSC advances, 2019-10, Vol.9 (6), p.3519-35116 |
| issn | 2046-2069 2046-2069 |
| language | eng |
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| source | PubMed Central |
| subjects | Biodiesel fuels Biomass Catalysts Catalytic activity Chemistry Coffee Conversion Efficiency Electrical grounding Energy conservation Energy consumption Fatty acids Lipids Pretreatment Reaction time Transesterification Waste utilization Water pollution |
| title | Direct biodiesel production from wet spent coffee grounds |
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