Semi-continuous production of biodiesel on pilot scale via enzymatic hydroesterification of waste material: Process and economics considerations

Wancura, João H. C.; Fantinel, Antônio Luiz; Ugalde, Gustavo A.; Donato, Filipe F.; Oliveira, J. Vladimir; Tres, Marcus V.; Jahn, Sérgío Luiz

doi:10.1016/j.jclepro.2020.124838

Cited by 35 publications

(6 citation statements)

References 36 publications

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“…In the second step, the substrate is the diglycerides that react with methanol in excess by the intervention of the biocatalyst and they become monoglycerides and FAME. The monoglycerides produced are soluble in the FAMEs, thus constituting a green diesel (see Figure 13 ) [ 67 ].…”

Section: Discussionmentioning

confidence: 99%

Biocatalysts Synthesized with Lipase from Pseudomonas cepacia on Glycol-Modified ZIF-8: Characterization and Utilization in the Synthesis of Green Biodiesel

et al. 2022

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This research presents results on the production of biodiesel from the transesterification of acylglycerides present in palm oil, using the biocatalysts ZIF-8-PCL and Gly@ZIF-8-PCL synthesized by immobilization of Pseudomonas Cepacia Lipase as catalytic materials and using pure ZIF-8 and Gly@ZIF-8 (modified ZIF-8) as supports. The Gly@ZIF-8 carbonaceous material was prepared by wet impregnation of ZIF-8 with ethylene glycol as the carbon source, and then thermally modified. The calcination conditions were 900 °C for two hours with a heating rate of 7 °C/min in an inert atmosphere. A textural characterization was performed, and results showed superficial changes of materials at the microporous and mesoporous levels for the Gly@ZIF-8 material. Both the starting materials and biocatalysts were characterized by infrared spectroscopy (FTIR) and Raman spectroscopy. During the transesterification, using the two biocatalysts (ZIF-8-PCL and Gly@ZIF-8-PCL), two supernatant liquids were generated which were characterized by infrared spectroscopy (FTIR), gas chromatography coupled to mass spectrometry (GC-MS), and nuclear magnetic resonance (NMR). The results show that the two routes of synthesis of supports from ZIF-8 will be configured as effective methods for the generation of effective biocatalysts for biodiesel production.

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Section: Discussionmentioning

confidence: 99%

Biocatalysts Synthesized with Lipase from Pseudomonas cepacia on Glycol-Modified ZIF-8: Characterization and Utilization in the Synthesis of Green Biodiesel

et al. 2022

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“…Using very hydrophobic supports or ultrasound treatments may decrease the negative effect of glycerol [171][172][173]. An alternative to avoid these problems is the strategy of hydroesterification: the oils are hydrolyzed, the glycerol is eliminated, and the lipases are utilized for the esterification of the free fatty acids [174][175][176][177]. This eliminates the methanol/ethanol competition with glycerol, but water may still form a phase in the enzyme environment, causing enzyme inhibition/inactivation.…”

Section: Enzymatic Production Of Hydrocarbonsmentioning

confidence: 99%

Production of Jet Biofuels by Catalytic Hydroprocessing of Esters and Fatty Acids: A Review

et al. 2022

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The transition from fossil to bio-based fuels is a requisite for reducing CO2 emissions in the aviation sector. Jet biofuels are alternative aviation fuels with similar chemical composition and performance of fossil jet fuels. In this context, the Hydroprocessing of Esters and Fatty Acids (HEFA) presents the most consolidated pathway for producing jet biofuels. The process for converting esters and/or fatty acids into hydrocarbons may involve hydrodeoxygenation, hydrocracking and hydroisomerization, depending on the chemical composition of the selected feedstock and the desired fuel properties. Furthermore, the HEFA process is usually performed under high H2 pressures and temperatures, with reactions mediated by a heterogeneous catalyst. In this framework, supported noble metals have been preferably employed in the HEFA process; however, some efforts were reported to utilize non-noble metals, achieving a similar performance of noble metals. Besides the metallic site, the acidic site of the catalyst is crucial for product selectivity. Bifunctional catalysts have been employed for the complete process of jet biofuel production with standardized properties, with a special remark for using zeolites as support. The proper design of heterogeneous catalysts may also reduce the consumption of hydrogen. Finally, the potential of enzymes as catalysts for intermediate products of the HEFA pathway is highlighted.

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“…Nowadays, the concept of bioenergy through the production of renewable fuels and the use of biomass to generate energy has proved to be an interesting alternative aiming to reduce society's energy dependence on petrochemical fuels [110][111][112]. Biofuels such as bioethanol, biodiesel and biogas, and biomass have emerged not only as an alternative energy source but also in relation to environmental issues.…”

Section: Biofuelsmentioning

confidence: 99%

Opportunities and Challenges of Plant Bioactive Compounds for Food and Agricultural-Related Areas

Santos¹,

Wancura²,

Oro³

et al. 2022

Phyton

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The growing development of biological products highlights the social and environmental responsibility that several industrial companies are facing in recent years. In this context, the advancement of bioprocessing as an alternative for exploring the potential of ecologically based products, especially in biofuels, food, and agro-industrial business, exposes the rational efficiency of the application of renewable sources in different industrial segments. Industries strongly associated with food production concentrate large amounts of wastes rich in bioactive compounds. A range of highly effective technologies has been highly explored to recover large concentrations of prominent compounds present in these materials. The advances in this scenario assurance value addition to these by-products, in addition to highlighting their various technological applications, considering the biorefinery and ecologically based production concepts. Accordingly, this review article described a detailed and systematic approach to the importance of using bioactive compounds and exploring the main sources of these elements. Also, some recent and innovative research that has achieved encouraging results was highlighted. Furthermore, the study included the main extraction technologies that have been investigated as a strategy of prospecting the application of bioactive compounds and optimizing the processes for obtaining natural compounds from plant sources. Finally, future outlooks were presented to contribute to the innovative opportunities and applicability of highly promising technologies and manipulations of bioactive compounds from a range of perspectives.

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Semi-continuous production of biodiesel on pilot scale via enzymatic hydroesterification of waste material: Process and economics considerations

Cited by 35 publications

References 36 publications

Biocatalysts Synthesized with Lipase from Pseudomonas cepacia on Glycol-Modified ZIF-8: Characterization and Utilization in the Synthesis of Green Biodiesel

Biocatalysts Synthesized with Lipase from Pseudomonas cepacia on Glycol-Modified ZIF-8: Characterization and Utilization in the Synthesis of Green Biodiesel

Production of Jet Biofuels by Catalytic Hydroprocessing of Esters and Fatty Acids: A Review

Opportunities and Challenges of Plant Bioactive Compounds for Food and Agricultural-Related Areas

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