Biodiesel Production from Vegetable Oils and Animal Fat over Solid Acid Double-Metal Cyanide Catalysts

Srinivas, D.; Satyarthi, Jitendra K.

doi:10.1007/s10563-010-9108-2

Cited by 31 publications

(13 citation statements)

References 82 publications

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“…Prior to the EDS analysis of the sulfonated materials, they were treated with a 0.1 M BaCl2 solution. The relative wettability by the hydrophobic reactant (sunflower oil) [29,30] was evaluated by turbidimetry [31]. 1 mg of each catalyst powder was sonicated with 2 ml sunflower oil for 15 min, and immediately afterwards, the light extinction was measured in a spectrophotometer (Hewlett-Packard 8453 diode array UV-visible spectrophotometer) at 700 nm, as a function of time.…”

Section: Characterization 221 Materials Characterizationmentioning

confidence: 99%

Mesoporous silica and carbon based catalysts for esterification and biodiesel fabrication—The effect of matrix surface composition and porosity

Björk

Militello

Tamborini

et al. 2017

Applied Catalysis A: General

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Mesoporous silica and carbon based catalysts for esterification and biodiesel fabrication-The effect of matrix surface composition and porosity, Applied Catalysis A, 2017. 533, pp.49-58. http://dx. AbstractThe effects of catalyst matrix porosity composition on the catalytic performance have been studied using sulfonated mesoporous SBA-15 silica. The matrix was sulfonated with three different methods: grafting, in situ oxidation, and carbon infiltration. Additionally, unordered sulfonated mesoporous carbon, and the commercial catalysts Amberlite IR-120 and Nafion 117 were tested. The catalytic performance was evaluated in a Fischer esterification using acetic acid and ethanol, as well as in a transesterification of triglycerides (sunflower oil) and ethanol to produce biodiesel. The study shows that for long carbon chains, the effective wetting of the porous catalyst matrix by the reactants is most important for the catalytic efficiency, while for shorter carbon chain, the mass transport of the reagents trough the porous structure is more important. The catalysts were analysed using electron microscopy and physisorption. The study shows that the reactions are faster with carbon infiltrated materials than the silica materials due to a higher concentration of sulfonic groups linked to the carbon. The in situ functionalized SBA-15 is a more efficient catalyst compared to the post grafted one. All the synthesized catalysts outperform the commercial ones in both reactions in terms of conversion.

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Section: Characterization 221 Materials Characterizationmentioning

confidence: 99%

Mesoporous silica and carbon based catalysts for esterification and biodiesel fabrication—The effect of matrix surface composition and porosity

Björk

Militello

Tamborini

et al. 2017

Applied Catalysis A: General

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“…The heterogeneous acid catalysts, such as ion exchange resins (amberlyst, nafion silica, etc. ), tungsten (WO3/ZrO2), sulfated catalyst (SO4 2-/ZrO2, SO4 2-/TiO2), hetero polyacid, Fe-Zn DMC (double metal cyanide catalysts), zinc stearate (Zn(C18H35O2)2), zirconium oxide (ZrO2), titanium oxide (TiO2), tin oxide (SnO2), zeolites, sulfonic ion-exchange resin, sulfonic modified mesostructured silica, and sulfonated carbon-based catalyst, are usually used in the esterification or transesterification [39,43,46,140,[135][136][137][138][139][140][141][142][143]. Concerning the reaction mechanism of heterogeneous acid catalysis for transesterification, FFA reacts with methanol to form methyl ester.…”

Section: Heterogeneous Acid Catalysismentioning

confidence: 99%

Advanced Chemical Reactor Technologies for Biodiesel Production from Vegetable Oils - A Review

Buchori

Istadi

Purwanto

2016

Bull. Chem. React. Eng. Catal.

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Biodiesel is an alternative biofuel that can replace diesel oil without requiring modifications to the engine and advantageously produces cleaner emissions. Biodiesel can be produced through transesterification process between oil or fat and alcohol to form esters and glycerol. The transesterification can be carried out with or without a catalyst. The catalyzed production of biodiesel can be performed by using homogeneous, heterogeneous and enzyme. Meanwhile, non-catalytic transesterification with supercritical alcohol provides a new way of producing biodiesel. Microwave and ultrasound assisted transesterification significantly can reduce reaction time as well as improve product yields. Another process, a plasma technology is promising for biodiesel synthesis from vegetable oils due to very short reaction time, no soap formation and no glycerol as a by-product. This paper reviews briefly the technologies on transesterification reaction for biodiesel production using homogeneous, heterogeneous, and enzyme catalysts, as well as advanced methods (supercritical, microwave, ultrasonic, and plasma technology). Advantages and disadvantages of each method were described comprehensively. Copyright © 2016 BCREC GROUP. All rights reserved Received: 17th May 2016; Revised: 20th September 2016; Accepted: 20th September 2016 How to Cite: Buchori, L., Istadi, I., Purwanto, P. (2016). Advanced Chemical Reactor Technologies for Biodiesel Production from Vegetable Oils - A Review. Bulletin of Chemical Reaction Engineering & Catalysis, 11 (3): 406-430 (doi:10.9767/bcrec.11.3.490.406-430) Permalink/DOI: <a href="http://doi.org/10.9767/bcrec.11.3.490.406-430" /> http://doi.org/10.9767/bcrec.11.3.490.406-430</a>

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“…Homogeneous acid catalysts are also used for this rearrangement, which Yadav and Lande (2006) replaced profitably by using eco-friendly solid acids. One of the interests is nowadays focused also on biodiesel (Melero 2009;Srinivas & Satyarthi 2011). It is usually prepared from crude and refined triglyceride containing raw materials, such as vegetable oils, animal fats, and wastes-for instance waste cooking oil and yellow and brown grease.…”

Section: Mesoporous Materials As Catalystmentioning

confidence: 99%

Applications of mesoporous silica materials in food - a review

Bernardos¹,

Kouřimská²

2013

Czech J. Food Sci.

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Bernardos A., Kouřimská L. (2013): Applications of mesoporous silica materials in food -a review. Czech J. Food Sci., 31: 99-107.Mesoporous silica materials have been developed for some applications in the health field. These solids are used for the controlled release of bioactive molecules, as catalysts in the synthesis of essential nutrients, as sensors to detect unhealthy products etc., with many applications in food technologies. By combining mesoporous silica materials with food, we can create healthier products, the products that improve our quality of life. The development of mesoporous materials applied to food could result in protecting bioactive molecules during their passage though the digestive system. For this reason, the controlled release of bioactive molecules is a very interesting topic for the discipline of food technology. The use of mesoporous silica supports as catalysts in the synthesis of nutrients and as sensors for the detection of unhealthy products, essential in food, is in great demand industrially for the manufacture of functional foods and films for food and industrial packaging. This review shows some examples of silica materials and their applications in food.

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Biodiesel Production from Vegetable Oils and Animal Fat over Solid Acid Double-Metal Cyanide Catalysts

Cited by 31 publications

References 82 publications

Mesoporous silica and carbon based catalysts for esterification and biodiesel fabrication—The effect of matrix surface composition and porosity

Mesoporous silica and carbon based catalysts for esterification and biodiesel fabrication—The effect of matrix surface composition and porosity

Advanced Chemical Reactor Technologies for Biodiesel Production from Vegetable Oils - A Review

Applications of mesoporous silica materials in food - a review

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