1. Repositório Institucional da UFMG
  2. Publicações Científicas e Culturais
  3. Artigo de Periódico
Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/55122
Full metadata record
DC FieldValueLanguage
dc.creatorGustavo Pereira dos Reispt_BR
dc.creatorClaudia Cristina Cardoso da Silvapt_BR
dc.creatorFabiana Pereira de Sousapt_BR
dc.creatorVânya Márcia Duarte Pasapt_BR
dc.date.accessioned2023-06-19T20:03:16Z-
dc.date.available2023-06-19T20:03:16Z-
dc.date.issued2019-
dc.citation.volume7pt_BR
dc.citation.issue5pt_BR
dc.citation.spage168pt_BR
dc.citation.epage175pt_BR
dc.identifier.doihttps://doi.org/10.12691/aees-7-5-2pt_BR
dc.identifier.issn2328-3920pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/55122-
dc.description.resumoBiodiesel is an important biofuel used worldwide as a total or partial substitute for fossil diesel. Many studies have been developed to reduce their costs, specially using acid oils as waste oil and inexpensive heterogeneous catalysts. CaO obtained from calcinated waste eggshells has been the object of study of this work to produce biodiesel using neutral soybean oil (<1.0 mg KOH/g) and high-acidity soybean oil (9.5 mg KOH/g) and macauba oil (20.0 mg KOH/g). A preliminary study of transesterification of neutral soybean oil with methanol in a molar ratio of oil:alcohol 1:12 in 3% of CaO-egg reached conversion 95% of FAME after 4 h of reflux. The progress of the reaction was analyzed both quantitatively by 1H NMR, as qualitatively by HPLC. The resultant biodiesel has met the international specifications as the kinematic viscosity and density, with values 4.37 mm2/s and 885.8 kg/m3, respectively. The study of breakthrough of the reaction between the doped acid soybean oil in the presence of methanol in a molar ratio of oil:alcohol 1:18, using 3% (w/w) CaO-egg indicated that the oil triglyceride only begins to be transesterified after all the neutralization of FFA. After 6 h of reflux the FAME conversion was of 96%. Using the same reaction conditions, while using the acid macauba oil, the FAME content was of 94%. The results showed the efficiency of CaO-egg for simultaneous neutralization/transesterification reaction for high-acidity oil, in only one step reaction.pt_BR
dc.description.sponsorshipFINEP - Financiadora de Estudos e Projetos, Financiadora de Estudos e Projetospt_BR
dc.format.mimetypepdfpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE QUÍMICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofApplied Ecology and Environmental Sciences-
dc.rightsAcesso Abertopt_BR
dc.subjectEggshellpt_BR
dc.subjectBiodieselpt_BR
dc.subjectHigh-acidity oilpt_BR
dc.subjectHeterogeneous catalystpt_BR
dc.subjectMacauba oilpt_BR
dc.subject.otherBiodieselpt_BR
dc.subject.otherBiocombustíveispt_BR
dc.subject.otherCatálise heterogêneapt_BR
dc.subject.otherÓleo de sojapt_BR
dc.subject.otherÓleo de macaúbapt_BR
dc.subject.otherÓxido de cálciopt_BR
dc.subject.otherReações químicaspt_BR
dc.titleStudy of eggshell as precursor of a heterogeneous catalyst in one step neutralization and transesterification reactions of acid macauba and soybean oilpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttp://pubs.sciepub.com/aees/7/5/2/pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-5940-1042pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-2510-3845pt_BR
Appears in Collections:Artigo de Periódico

Files in This Item:
File Description SizeFormat 
Study of eggshell as precursor of a heterogeneous catalyst in one step neutralization and transesterification reactions of acid macauba and soybean oil-1.pdf592.66 kBAdobe PDFView/Open
Show simple item record


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.