Kinetics for the biodiesel production from lauric acid over Keggin heteropolyacid loaded in silica framework

Gallego-Villada, Luis A.; Alarcón, Edwin A.; Palermo, Valeria; Vázquez, Patricia; Romanelli, Gustavo Pablo

doi:10.1016/j.jiec.2020.08.030

Cited by 24 publications

(17 citation statements)

References 57 publications

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“…In the transesterification reaction, a rate limiting step is, indeed, the substitution between both functional groups. The increase in contact time between alcohol and lipid having two different functional groups is a key factor to enhance the reaction kinetics of transesterification reaction 55 . In conventional transesterification reaction, known as base‐catalyzed transesterification works around 65°C because the boiling temperature of methanol is low (65°C).…”

Section: Resultsmentioning

confidence: 99%

“…The increase in contact time between alcohol and lipid having two different functional groups is a key factor to enhance the reaction kinetics of transesterification reaction. 55 In conventional transesterification reaction, known as basecatalyzed transesterification works around 65 C because the boiling temperature of methanol is low (65 C). As an effort to significantly enhance contact frequency between two reactants (methanol and lipid), heterogeneous reactions between methanol (MeOH) and lipid were developed using porous materials in our previous study.…”

Section: Valorization Of Pwb As a Catalyst For Bd Productionmentioning

confidence: 99%

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Valorization of peanut wastes into a catalyst in production of biodiesel

Kim

Lee

Jung

et al. 2021

Intl J of Energy Research

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Summary To offer an innovative way to valorize industrial crop waste into the diverse types of biofuels, the thermochemical process of peanut waste (PW) was investigated. In particular, this study laid a great stress on the use of PW‐derived biochar as a cheap catalytic material in the production of biodiesel. Specifically, biochar derived from the pyrolysis of PW was used as a catalytic and porous medium for biodiesel production to enhance reaction kinetics and lower reaction temperature, compared to conventional methods. Two PW‐derived biochars produced at 600°C (PWB‐600) and 700°C (PWB‐700) were effective on the transesterification of soybean oil, showing higher than 95 wt% of biodiesel yield after 1 minute of transesterification reaction at ≥210°C. As a comparison, a commercially used reaction, alkali‐catalyzed transesterification, was conducted at 60°C with a KOH catalyst. Biodiesel yield from the alkali‐catalyzed reaction was less than 90 wt% even after 6 hours of reaction. Given that the biochar formation process results in the generation of pyrolytic gases and oils, both pyrolysates at different temperatures were also monitored. Pyrolytic gases included syngas and C1‐2 hydrocarbons, whereas pyrolytic oils consisted of phenolic compounds that can be used as intermediates for the synthesis of value‐added chemicals. Thus, the results confirmed that the thermochemical upgrading of PW produces value‐added industrial chemicals (pyrolytic gases and oils) and biochars that are highly active for the biodiesel production process.

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Section: Resultsmentioning

confidence: 99%

Section: Valorization Of Pwb As a Catalyst For Bd Productionmentioning

confidence: 99%

Valorization of peanut wastes into a catalyst in production of biodiesel

Kim

Lee

Jung

et al. 2021

Intl J of Energy Research

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“…The reaction was performed with a 10% catalyst and methanol/oil ratio of 17:1 at 200 °C for 10 h. The optimal conversion reached 94.9%, while reaction conversion decreased to 90.3% after the second run. 41 Gaurav et al kinetically modeled one-step biodiesel manufacture using a solid HSiW/Al 2 O 3 heteroatom catalyst loaded on alumina in the presence of high concentrations of free fatty acids in the used oils. Esterification rate constants and activation parameters were modeled for the essential fatty acid components of oleic, yellow grease, palmitic, and linoleic lipids.…”

Section: Heteropolyacid (Hpa)-based Catalystsmentioning

confidence: 99%

“…Kurhade et al reported biodiesel production using an aluminum oxide catalyst saturated with 12-tungstophosphoric acid. The reaction was performed with a 10% catalyst and methanol/oil ratio of 17:1 at 200 °C for 10 h. The optimal conversion reached 94.9%, while reaction conversion decreased to 90.3% after the second run . Gaurav et al kinetically modeled one-step biodiesel manufacture using a solid HSiW/Al 2 O 3 heteroatom catalyst loaded on alumina in the presence of high concentrations of free fatty acids in the used oils.…”

Section: Heteropolyacid (Hpa)-based Catalystsmentioning

confidence: 99%

Insight into the Recent Advances in Sustainable Biodiesel Production by Catalytic Conversion of Vegetable Oils: Current Trends, Challenges, and Prospects

2023

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Recently, numerous advances were reported in the creation of efficient and low-cost heterogeneous catalysts for the transesterification reactions of triglyceride molecules to decrease the overall cost of biofuel production. The heterocatalytic transesterification process has been recognized to be the most emerging approach in biodiesel synthesis as a result of its ease of use and low price. The unique characteristics of seven different kinds of heterogeneous catalysts, containing heteropolyacid, zeolite-based catalyst, layered-double-hydroxide-based catalyst, graphene, graphene oxide, activated carbon, biomass and non-biomass waste materials, and finally metal- and metal-oxide-based catalysts that are frequently employed in current biodiesel research, have undergone extensive studies. The emphasis is on multipurpose catalysts, which have high catalytic efficiency and low production cost because they create biofuel that is more applicable, effective, and eco-friendly. This review highlighted significant factors affecting the efficiency of heterogeneous catalysts, discussed the reaction parameters that affect biofuel production from various vegetable oil feedstocks, also mentioned the reaction mechanism of biodiesel production using heterogeneous catalysts, and last debated process opportunities and challenges that could stimulate future exploration.

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“…Multiple catalysts, including solid super acid [ 16 ], heteropoly acid [ 17 ], high-acidic cation exchange resin [ 18 ] and zeolite molecular sieve [ 19 ], have been employed with wide and intensive study in catalysis, yet the mechanism of these catalysts were heterogeneous catalysis with low catalytic activity, together with problems in complexity of synthetic process and high capital cost [ 20 ]. Application of ILs in esterification could effectively avoid excess of side reaction and increase productivity [ 21 , 22 ], compared with a conventional inorganic acid catalyst.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Tropine-Based Functionalized Acidic Ionic Liquids and Catalysis of Esterification

Zhang

Zong

et al. 2022

IJMS

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Some traditional acidic ionic liquids (AILs) have shown great catalytic potential in esterification; meanwhile, the design and application of more new AILs are expected at present.Tropine-based functionalized acidic ionic liquids (FAILs) were synthesized to realize esterification catalysis for the first time; with aspirin synthesis as the template reaction, key influences on the substrate conversion and product yield of the synthesis, such as IL type, ratio of salicylic acid to acetic anhydride, temperature, reaction time and amount of IL, were investigated. The new tropine-based FAILs exhibited excellent performance in catalytic synthesis of aspirin with 88.7% yield and 90.8% selectivity. Multiple recovery and re-usage of N-(3-propanesulfonic acid) tropine is the cation, and p-toluenesulfonic acid is the anion. ([Trps][OTs]) shows satisfactory results. .When [Trps][OTs] was used to catalyze different esterification reactions, it also showed good results. The above studies proved that ionic liquid [Trps][OTs] could serve as an ideal green solvent for esterification reaction, which serves as a suitable substitute for current catalysts.

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Kinetics for the biodiesel production from lauric acid over Keggin heteropolyacid loaded in silica framework

Cited by 24 publications

References 57 publications

Valorization of peanut wastes into a catalyst in production of biodiesel

Valorization of peanut wastes into a catalyst in production of biodiesel

Insight into the Recent Advances in Sustainable Biodiesel Production by Catalytic Conversion of Vegetable Oils: Current Trends, Challenges, and Prospects

Synthesis of Tropine-Based Functionalized Acidic Ionic Liquids and Catalysis of Esterification

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