Application of Catalysts in Biodiesel Production

Gupta, Anilkumar R.; Rathod, Virendra K.

doi:10.1002/9781119724957.ch3

Cited by 3 publications

(1 citation statement)

References 164 publications

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“…These catalysts are frequently used in industrial-scale processes because they present higher reaction rates than heterogeneous catalysis. However, they have some disadvantages, for example, the impossibility of recovering the catalyst when the reaction is finished, in addition to the need for a purification process where large amounts of residual water are generated [108]. Figure 4 presents the biodiesel production process using homogeneous catalysts.…”

Section: Homogeneous Catalysismentioning

confidence: 99%

Biodiesel Production from Waste Cooking Oil: A Perspective on Catalytic Processes

et al. 2023

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Presently, the use of fossil fuels is not ecologically sustainable, which results in the need for new alternative energies such as biodiesel. This work presents a review of the classification of the lipidic feedstocks and the catalysts for biodiesel production. It also presents the pros and cons of the different processes and feedstocks through which biodiesel is obtained. In this context, cooking oil (WCO) has emerged as an alternative with a high potential for making the process sustainable. A detected limitation to achieving this is the high content of free fatty acids (FFA) and existing problems related to homogeneous and heterogeneous catalysts. To overcome this, the use of bifunctional catalysts is being evaluated by the scientific community. Thus, this work also explores the advances in the study of bifunctional catalysts, which are capable of simultaneously carrying out the esterification of free fatty acids (FFA) and the triglycerides present in the WCO. For the sake of an improved understanding of biodiesel production, flow diagrams and the mechanisms implied by each type of process (enzymatic, homogenous, and heterogeneous) are provided. This article also highlights some of the challenges in catalyst development for sustainable biodiesel production from low-grade raw materials.

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Section: Homogeneous Catalysismentioning

confidence: 99%

Biodiesel Production from Waste Cooking Oil: A Perspective on Catalytic Processes

et al. 2023

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Biodiesel from Biomass: Production of Sustainable Biodiesel Fuel

Kaur

Sharma

Chaturvedi

2023

Biorefinery: A Sustainable Approach for the Production of Biomaterials, Biochemicals and Biofuels

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A Short Review on Catalyst, Feedstock, Modernised Process, Current State and Challenges on Biodiesel Production

et al. 2021

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Biodiesel, comprising mono alkyl fatty acid esters or methyl ethyl esters, is an encouraging option to fossil fuels or diesel produced from petroleum; it has comparable characteristics and its use has the potential to diminish carbon dioxide production and greenhouse gas emissions. Manufactured from recyclable and sustainable feedstocks, e.g., oils originating from vegetation, biodiesel has biodegradable properties and has no toxic impact on ecosystems. The evolution of biodiesel has been precipitated by the continuing environmental damage created by the deployment of fossil fuels. Biodiesel is predominantly synthesised via transesterification and esterification procedures. These involve a number of key constituents, i.e., the feedstock and catalytic agent, the proportion of methanol to oil, the circumstances of the reaction and the product segregation and purification processes. Elements that influence the yield and standard of the obtained biodiesel encompass the form and quantity of the feedstock and reaction catalyst, the proportion of alcohol to feedstock, the temperature of the reaction, and its duration. Contemporary research has evaluated the output of biodiesel reactors in terms of energy production and timely biodiesel manufacture. In order to synthesise biodiesel for industrial use efficaciously, it is essential to acknowledge the technological advances that have significant potential in this sector. The current paper therefore offers a review of contemporary progress, feedstock categorisation, and catalytic agents for the manufacture of biodiesel and production reactors, together with modernised processing techniques. The production reactor, form of catalyst, methods of synthesis, and feedstock standards are additionally subjects of discourse so as to detail a comprehensive setting pertaining to the chemical process. Numerous studies are ongoing in order to develop increasingly efficacious techniques for biodiesel manufacture; these acknowledge the use of solid catalytic agents and non-catalytic supercritical events. This review appraises the contemporary situation with respect to biodiesel production in a range of contexts. The spectrum of techniques for the efficacious manufacture of biodiesel encompasses production catalysed by homogeneous or heterogeneous enzymes or promoted by microwave or ultrasonic technologies. A description of the difficulties to be surmounted going forward in the sector is presented.

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Application of Catalysts in Biodiesel Production

Cited by 3 publications

References 164 publications

Biodiesel Production from Waste Cooking Oil: A Perspective on Catalytic Processes

Biodiesel Production from Waste Cooking Oil: A Perspective on Catalytic Processes

Biodiesel from Biomass: Production of Sustainable Biodiesel Fuel

A Short Review on Catalyst, Feedstock, Modernised Process, Current State and Challenges on Biodiesel Production

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