Heterogeneous Catalysts for Biodiesel Production: A Review
Year: 2019
Type: review
Abstract: Biodiesel is a biofuel and appears on the world energy scene as a strong substitute for petroleum diesel for its renewable and less environmentally polluting character. It can be obtained from transesterification reaction of triacylglycerol from vegetable oils or animal fats with short chainalcohol in the presence of homogeneous or heterogeneous catalysts. In recent years the production of alkyl ester by using heterogeneous catalysts it has excelled due to their capacity for regeneration, reuse and reduction of processing stages. Several parameters have been evaluated in the reaction steps, such as amount of catalyst, molar ratio of alcohol:oil, temperature, agitation speed and reaction duration. Intrinsic properties of catalysts are also studied, such as porosity, surface area, catalytic activity and others. Therefore, this review presents the transesterification reaction of several raw materials, as sources of triacylglycerols, using short chain alcohols and different heterogeneous catalysts. Optimal conditions for each catalyst, as well as its respective reaction mechanisms, were summarized.
Source: Food and public health
Language: English
Subfield: Fuel Technology
Field: Energy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2988098414