Bio fuel production from crude Jatropha oil; addition effect of formic acid as an in-situ hydrogen source

Hwang, Kyung-Ran; Choi, Il-Ho; Choi, Hyeyoung; Han, Jinyu; Lee, Kyong-Hwan; Lee, Jin-Suk

doi:10.1016/j.fuel.2016.01.080

Cited by 36 publications

(15 citation statements)

References 20 publications

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“…Formic acid was proposed as an outstanding alternative for the in situ hydrogen production and storage [109,110]. In this sense, formic acid was employed as a co-reactant and hydrogen donor to deoxygenate jatropha oil over a Pd/C catalyst [111]. Notably, in situ production of hydrogen from formic acid yielded higher oil conversions and higher hydrocarbon selectivity when compared to processes without the use of formic acid or to those that used only water; beyond that, when continuous deoxygenation of the feedstock was performed in a medium with formic acid, a high initial resistance to catalyst deactivation was observed [111].…”

Section: Hydrogen Consumptionmentioning

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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Section: Hydrogen Consumptionmentioning

confidence: 99%

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

et al. 2022

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“…Lee et al . reported an interesting use of FA for the hydrodeoxygenation reaction (HDO) of crude Jatropha oil for biofuel production.…”

Section: Biofuel and Biofuel Additives Productionmentioning

confidence: 99%

“…Fuels and Additives from Oleaginous Biomass. Lee et al 120 reported an interesting use of FA for the hydrodeoxygenation reaction (HDO) of crude Jatropha oil for biofuel production. By performing the reaction at 300 °C over Pd/C with a 30% FA aqueous solution, C15−C17 hydrocarbons were successfully obtained (97%).…”

Section: ■ Introductionmentioning

confidence: 99%

Catalytic Biomass Upgrading Exploiting Liquid Organic Hydrogen Carriers (LOHCs)

Ferlin

Valentini

Marrocchi

et al. 2021

ACS Sustainable Chem. Eng.

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The use of hydrogen at high-pressure is associated with major safety concerns, storage, and high cost. Therefore, the development of reductive chemical processes based on the use of low-pressure hydrogen is very attractive in view of an industrial-scale application. This perspective focuses on the most representative studies reported until 2021 dealing with the reductive manipulation processes of diverse biomass-based feedstock utilizing alternative liquid organic hydrogen carriers (LOHCs). In this context, the research has been dedicated mainly to formic acid and small molecular alcohols, specifically isopropanol. The perspective illustrates the transformations of biobased platform molecules, such as levulinic acid, furfural, and 5-hydroxymethylfurfural, into valuable products, including biofuels. In addition, the lignin upgrading mediated by these H2 sources is discussed.

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“…These large molecules are either transformed to smaller ones or blocking the catalyst pores. The catalyst pores need to have a defined structure for product selectivity [73].Hwang et al [107] studied the biofuel production from Jatropha oil over Pd/C catalysts. During the catalytic reaction of crude vegetable oils, catalyst deactivated by the accumulation, adsorption and blocking of reactants and products.…”

Section: Catalyst Propertiesmentioning

confidence: 99%

Review of Heterogeneous Catalysts for Catalytically Upgrading Vegetable Oils into Hydrocarbon Biofuels

et al. 2017

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Abstract:To address the issues of greenhouse gas emissions associated with fossil fuels, vegetable oilseeds, especially non-food oilseeds, are used as an alternative fuel resource. Vegetable oil derived from these oilseeds can be upgraded into hydrocarbon biofuel. Catalytic cracking and hydroprocessing are two of the most promising pathways for converting vegetable oil to hydrocarbon biofuel. Heterogeneous catalysts play a critical role in those processes. The present review summarizes current progresses and remaining challenges of vegetable oil upgrading to biofuel. The catalyst properties, applications, deactivation, and regeneration are reviewed. A comparison of catalysts used in vegetable oil and bio-oil upgrading is also carried out. Some suggestions for heterogeneous catalysts applied in vegetable oil upgrading to improve the yield and quality of hydrocarbon biofuel are provided for further research in the future.

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Bio fuel production from crude Jatropha oil; addition effect of formic acid as an in-situ hydrogen source

Cited by 36 publications

References 20 publications

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

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

Catalytic Biomass Upgrading Exploiting Liquid Organic Hydrogen Carriers (LOHCs)

Review of Heterogeneous Catalysts for Catalytically Upgrading Vegetable Oils into Hydrocarbon Biofuels

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