Short‐chain esters enriched biofuel obtained from vegetable oil using molecular distillation

Oliveira, Vanessa Fernandes de; Parente, Evandro; Cavalcante, Célio L.; Luna, F. Murilo T.

doi:10.1002/cjce.23044

Cited by 12 publications

(5 citation statements)

References 45 publications

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“…The fractioning by distillation to obtain light FAME from the babassu palm (Attalea speciosa) oil reportedly met the main ASTM D1655 recommendations for blends with up to 6% light FAME by volume. 24 Similar results were reported for the use of FAME from Jatropha curcas, 25 camelina (Camelina sativa), 26 palm 22 and macaúba. 21 Those studies were based on distillation processes with variable technical complexities.…”

Section: Introductionsupporting

confidence: 71%

Light Fatty Acid Methyl Esters in Biodiesel Derived from the Gueiroba (Syagrus oleracea) Kernel Oil to Blend with Jet-A1 Kerosene for Aviation Fuel

Chagas¹,

Santos²,

Fabris³

et al. 2023

J. Braz. Chem. Soc.

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The approach proposed here is focused on the separation of light fractions (corresponding to fatty acids with molecular chains between 8 to 14 carbons) from the fatty acid methyl esters (FAMES) of the biodiesel obtained by the reaction of transesterification of triacylglycerol’s in the kernel gueiroba oil (Syagrus oleracea) with methanol. The whole biodiesel was fractionated through atmospheric distillation in a single glass column with thermal insulation. Such a separation produced 59.79% in volume of light biodiesel (LB), which was mixed with the standard mineral Jet-A1 kerosene (cf. ASTM, corresponding to the QAV-1, cf. the Brazilian standard of the ANP) for aviation, in the volumetric ratios LB:Jet-A1 2:98; 5:95; 10:90 and 20:80. The values of density, water content, distillation analysis, flash point, calorific value and freezing point were carefully checked for their compliance with the official recommendations for a jet fuel. It was found that the mixtures richest in the Jet-A1 mineral kerosene, that is, those containing no more than 5% LB by volume, well meet the recommended standards and are technologically viable to replace pure Jet-A1 kerosene for the propulsion of turbine aircraft.

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Section: Introductionsupporting

confidence: 71%

Light Fatty Acid Methyl Esters in Biodiesel Derived from the Gueiroba (Syagrus oleracea) Kernel Oil to Blend with Jet-A1 Kerosene for Aviation Fuel

Chagas¹,

Santos²,

Fabris³

et al. 2023

J. Braz. Chem. Soc.

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“…Biodiesel blends with petroleum-derived fuels have been investigated for a while now. Today, specialists study not only biodiesel blends with conventional diesel for automobile and land cargo transportation but also blends of biodiesel with kerosene for jet engines for example, among other possibilities . Some studies also suggest that adding alcohol to biodiesel and diesel blends can improve combustion performance .…”

Section: Biodiesel Blend Flash Point Predictionmentioning

confidence: 99%

Mixture Flash Point Calculation: Recent Advances and a Closer Look at Biodiesel

Costa do Nascimento,

Souza,

Hentges

et al. 2024

ACS Chem. Health Saf.

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To safely handle, transport, and store flammable or combustible liquids, such as biodiesel and its blends, it is important to have knowledge of a few physical-chemical properties. The Flash Point is an important one, as it is related to the flammability of the fuel blend. It can be experimentally measured through open cup or closed cup standard procedures. However, due to the usual scarcity of experimental data for multicomponent systems, developing a model to predict flash points of mixtures is of interest. To do so, there are a few possible approaches, which include empirical regression of data, vapor pressure-based methods, and QSPR. When it comes to mixtures, the most popular modeling method is based on vapor pressure, which usually employs LeChatelier's rule and vapor−liquid equilibria (VLE) calculations to flash point prediction. Generally, a γ−φ approach is adopted to describe the VLE behavior, although some authors have shown interest in φ−φ approaches. In recent years, studies on QSPR for FP prediction of mixtures have evolved, which represents an advance toward more generalized FP prediction models. Additionally, COSMO type models have been gaining attention in FP prediction, usually associated with vapor pressure models or even empirical models. When it comes to biodiesel though, not much progress has been made since 2014, with just a few works being published since then. This paper seeks to review advances made in FP prediction methods for mixtures in general, while giving attention to those involving biodiesel and petro-diesel.

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“…Biodiesel was proposed to be blended with aviation fuels [55][56][57][58]; however, biodiesel is generally produced by the transesterification of acylglycerols-or by the esterification of free fatty acids-with short-chain alcohols (ethyl alcohol or methyl alcohol, for example), resulting in esters with high oxygen content [59]. Therefore, the use of biodiesel as a drop-in jet biofuel or even blended with fossil or bio-based fuels for aviation is not recommended, and should be limited to less than 5 ppm, according to ASTM D7566 [27].…”

Section: Catalytic Hydrodeoxygenationmentioning

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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Short‐chain esters enriched biofuel obtained from vegetable oil using molecular distillation

Cited by 12 publications

References 45 publications

Light Fatty Acid Methyl Esters in Biodiesel Derived from the Gueiroba (Syagrus oleracea) Kernel Oil to Blend with Jet-A1 Kerosene for Aviation Fuel

Light Fatty Acid Methyl Esters in Biodiesel Derived from the Gueiroba (Syagrus oleracea) Kernel Oil to Blend with Jet-A1 Kerosene for Aviation Fuel

Mixture Flash Point Calculation: Recent Advances and a Closer Look at Biodiesel

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

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