Solid acid as catalyst for biodiesel production via simultaneous esterification and transesterification of macaw palm oil

Conceição, Leyvison Rafael Vieira da; Carneiro, Lívia Melo; Rivaldi, Juan Daniel; Castro, Heizir F. de

doi:10.1016/j.indcrop.2016.05.044

Cited by 115 publications

(46 citation statements)

References 42 publications

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“…A seleção da matéria prima a partir da qual o biodiesel será produzido é fundamental para a redução do custo do produto. O uso de óleos de menor qualidade, geralmente impróprios para a alimentação humana, com elevada concentração de ácidos graxos livres (AGLs), constitui uma interessante maneira de aumentar a viabilidade econômica do processo (CONCEIÇÃO et al, 2016). Neste cenário o óleo de macaúba (Acrocomia aculeata) é considerado promissor para ser utilizado na produção do biodiesel.…”

Section: Introductionunclassified

Efeito Das Variáveis Operacionais Na Produção De Ésteres a Partir Do Óleo Da Polpa De Macaúba Utilizando Metil Acetato

Visioli¹,

Pinheiro²,

Castilhos³

et al. 2018

Blucher Chemical Engineering Proceedings

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RESUMO -Este estudo tem por objetivo a produção de ésteres metílicos de ácidos graxos a partir do óleo da polpa da macaúba sem a formação de glicerol como subproduto utilizando metil acetato (MA) em condições pressurizadas em reator contínuo. Para melhor entendimento do processo foi realizado planejamento de experimentos Box-Behnken com as variáveis independentes temperatura, tempo e razão mássica MA:óleo. Foi alcançado experimentalmente rendimento de 80,02% em ésteres na condição de 20 MPa, 325 ºC e MA:óleo2,5:1.

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Section: Introductionunclassified

Efeito Das Variáveis Operacionais Na Produção De Ésteres a Partir Do Óleo Da Polpa De Macaúba Utilizando Metil Acetato

Visioli¹,

Pinheiro²,

Castilhos³

et al. 2018

Blucher Chemical Engineering Proceedings

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“…Nesta vertente surge o biodiesel, um combustível de origem renovável, biodegradável, não tóxico, livre de enxofre e aromáticos dentre outras vantagens. 1,2 O biodiesel pode ser produzido pela reação de transesterificação via catálise básica ou ácida, partindo de um óleo vegetal ou gordura animal como matéria prima, ou mais recentemente estudado, microrganismos como microalgas e leveduras devido ao seu elevado teor de lipídios (até 50% em peso); ou pela reação de esterificação, utilizando um ácido graxo ou óleo residual e um catalisador ácido. Os alcoóis são agentes esterificantes que doam o próton para formação da água, subproduto na reação de esterificação.…”

Section: Introductionunclassified

Production, Characterization and Use of Sulfonated Polystyrene and Polysulfone Membranes as Catalysts in the Esterification Reaction of Oleic Acid

Lima

Tirone²,

Batista³

et al. 2018

Rev. Virtual Quim.

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Biodiesel is a renewable and non-toxic biofuel that can be produced by the esterification reaction. In this reaction, acid catalysts are used and, due to the numerous advantages, heterogeneous catalysts are gaining space. Polysulfone (PSF) and sulfonated polystyrene (PSS) membranes were prepared to catalyze the esterification reaction of oleic acid with methanol, producing biodiesel. Several morphological types of membranes were obtained: dense, porous and electrospun. The reaction conditions were: temperature of 100 °C, molar ratio of 10:1 (methanol:oleic acid), 5% catalyst and time of 2 hours. By means of the BET and BJH methods it was possible to obtain the surface area of the membranes, volume and pore size. The consumption of oleic acid and the formation of the ester were confirmed by the analyzes of CGMS and the FTIR bands, respectively. For the membranes that presented the PSS, 2 hours of reaction were enough for almost total consumption of oleic acid, except for the dense membrane.

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“…In this context, the macaw palm stands out because of the high production potential of oil from its fruits (Conceição et al, 2016), and the possibility to be used in a consortium with other species into agrosilvopastoral systems (Henderson et al, 1995;Viana et al, 2011). The estimate of oil productivity in the mesocarp is of 5000 kg.ha -1 palm-kernel type, needed for biodiesel production, and of 1400 kg.ha -1 of oil in the kernel is lauryl type, used in cosmetics (Clement et al, 2005;Barreto et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Determination of macaw fruit harvest period by biospeckle laser technique

Costa¹,

Pinto²,

JÃonior³

et al. 2017

Afr. J. Agric. Res.

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Macaw palm has been stood out as a raw material for the production of bioenergy, because it has high productivity of oil and less emission of polluting waste during combustion, meeting the worldwide demand for sustainable energy sources. The aims of this research were the evaluation of response of the biologic activity measured by the optical technique of the biospeckle laser applied to macaw palm fruits at different maturity weeks and develop a classifier in function of biologic activity to determine the harvest period related with oil content in the fruits. To perform the experiment, 10 weeks fruits different maturity stages were evaluated. The biospeckle laser images were obtained by illuminating the epicarp of each fruit. The biological activity was quantified by absolute value of difference algorithm applied to biospeckle images. A neural network was developed to classify the fruits which were closer to harvest in function of biologic activity. Biologic activity showed a significant linear ratio (R 2 = 0.913) with the maturation of fruits. Classification results have shown that fruits from 59 th week after flowering are ideal for harvest and present the highest oil levels.

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Solid acid as catalyst for biodiesel production via simultaneous esterification and transesterification of macaw palm oil

Cited by 115 publications

References 42 publications

Efeito Das Variáveis Operacionais Na Produção De Ésteres a Partir Do Óleo Da Polpa De Macaúba Utilizando Metil Acetato

Efeito Das Variáveis Operacionais Na Produção De Ésteres a Partir Do Óleo Da Polpa De Macaúba Utilizando Metil Acetato

Production, Characterization and Use of Sulfonated Polystyrene and Polysulfone Membranes as Catalysts in the Esterification Reaction of Oleic Acid

Determination of macaw fruit harvest period by biospeckle laser technique

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