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Biodiesel production from waste cooking oils catalysed by ionic liquid [BMIM][HSO4]

2022Conference object Open access
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dc.contributor.authorAlmeida, Fretson Micaela
dc.contributor.authorQueiroz, Ana
dc.contributor.authorRibeiro, António E.
dc.contributor.authorBrito, Paulo
dc.date.accessioned2023-01-20T16:22:53Z
dc.date.available2023-01-20T16:22:53Z
dc.date.issued2022
dc.description.abstractThe environmental and energy problems related to the burning of fuels from fossil resources, i.e. nonrenewable fuels such as oil, natural gas or coal, leading to an increased concern about global warming, have directed the scientific community to seek sustainable and renewable energy alternatives. In this context, biofuels have emerged as a promising way to replace non-renewable fuels, including biodiesel [1]. Biodiesel is defined as a mix of monoalkyl esters of long fatty acid chains (FAMEs), and can be obtained by converting vegetable oils or animal fats through transesterification or esterification reactions. Due to its advantages, such as biodegradability, low viscosity, high flash point and low environmental impacts, it has potential to be used directly in diesel engines without any modification [2]. The raw materials used in biodiesel production can be divided into edible and inedible. However, the high cost of edible oils, which correspond to about 70% of the total value of production, as well as competition with the food market and soil degradation due to large planting scales, are disadvantages for the production and commercialization of biodiesel [3]. Inedible materials such as Waste Cooking Oils (WCOs) can also be used. The reuse of WCOs is a sustainable and environmentally friendly solution, preventing millions of tons of this raw material from being dumped into sanitation systems giving rise to serious problems in wastewater treatment. Still, one of the disadvantages of using WCOs is its high Free Fatty Acid (FFA) content that leads to saponification reactions [2]. Homogeneous alkaline catalysts are the most used in the biodiesel production industry. Compared to homogeneous acid catalysts, they have many advantages, such as high productivity, low price, allow high reaction speed, shorter reaction time, low alcohol molar ratio:oil and lower corrosiveness. However, catalysis is mainly affected by the presence of free fatty acids, leading to decreased reaction yields. In addition, when using these conventional catalysts, a high amount of clean water is used during the purification process, resulting in high flows of waste water, which is deposited in rivers, lakes, seas, contaminating the environment. To solve this problem, the possibility arises of using new catalysts, such as ionic liquids (ILs), which allow high reaction yields, and can be recovered and reused, making them greener and more economicalpt_PT
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) and FEDER under Programme PT2020 for financial support to CIMO (UIDB/0690/2020).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAlmeida, Fretson Micaela; Queiroz, Ana; Ribeiro, António E.; Brito, Paulo (2022). Biodiesel production from waste cooking oils catalysed by ionic liquid [BMIM][HSO4]. In Ângela Ferreira; Carla Sofia Fernandes; Florbela Fernandes; Luís Pais (Eds.) VII Congresso Ibero-Americano de Empreendedorismo, Energia, Ambiente e Tecnologia. Bragançapt_PT
dc.identifier.isbn978-972-745-305-4
dc.identifier.urihttp://hdl.handle.net/10198/26623
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherInstituto Politécnico de Bragançapt_PT
dc.relationMountain Research Center
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBiodieselpt_PT
dc.subjectWaste cooking oilspt_PT
dc.titleBiodiesel production from waste cooking oils catalysed by ionic liquid [BMIM][HSO4]pt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.citation.conferencePlaceBragançapt_PT
oaire.citation.endPage20pt_PT
oaire.citation.startPage19pt_PT
oaire.citation.titleVII Congresso Ibero-Americano de Empreendedorismo, Energia, Ambiente e Tecnologiapt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameQueiroz
person.familyNameRibeiro
person.familyNameBrito
person.givenNameAna
person.givenNameAntónio E.
person.givenNamePaulo
person.identifier.ciencia-id2611-D40C-3472
person.identifier.ciencia-id3211-D5B0-870D
person.identifier.ciencia-idA31A-D845-A6E2
person.identifier.orcid0000-0003-4761-0618
person.identifier.orcid0000-0003-4569-7887
person.identifier.orcid0000-0003-1805-0252
person.identifier.ridO-8367-2015
person.identifier.scopus-author-id23390701300
person.identifier.scopus-author-id31168231800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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relation.isAuthorOfPublication52666376-f100-4407-87ef-dc5df3613761
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