Volume 2, Issue 3 pp. 145-156
Review

Biodiesel: Sustainable Energy Replacement to Petroleum-Based Diesel Fuel – A Review

Olawale E. Ajala

Corresponding Author

Olawale E. Ajala

University of Ilorin, Department of Chemical Engineering, P.M.B. 1515 Ilorin, Kwara State 240001, Nigeria.

University of Ilorin, Department of Chemical Engineering, P.M.B. 1515 Ilorin, Kwara State 240001, Nigeria.Search for more papers by this author
Folorunsho Aberuagba

Folorunsho Aberuagba

Federal University of Technology, Department of Chemical Engineering, P.M.B 65, Gidan-Kwanu, Minna, Niger State, Nigeria.

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Temitope E. Odetoye

Temitope E. Odetoye

University of Ilorin, Department of Chemical Engineering, P.M.B. 1515 Ilorin, Kwara State 240001, Nigeria.

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Adejoke M. Ajala

Adejoke M. Ajala

Ladoke Akintola University of Technology, Department of Chemical Engineering, P.M.B. 4000, Ogbomoso, Oyo State, Nigeria.

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First published: 20 February 2015
Citations: 78

Abstract

Biodiesel is a sustainable and renewable source of fuel. It has been considered as a comparable substitute to petro-diesel, which is a fast depleting resource. Many studies have been undertaken on biodiesel production from various feedstock as a result of its importance. The differences between the physico-chemical properties of biodiesel and petro-diesel were considered with the aim of justifying the applicability of biodiesel in compression ignition engines (CIE). It was established that biodiesel has relatively close BTE (brake thermal efficiency) and BSFC (brake specific fuel consumption) values with petro-diesel, hence, is suitable for CIE operation without any modification. The exhaust from CIE using biodiesel was lower compared to petro-diesel and this confirms the environmental friendliness of biodiesel. The catalyst being an important substance in the transesterification reaction of vegetable oil/animal fat to produce biodiesel was comprehensively discussed, and heterogeneous catalysts were established to be preferred due to several advantages over homogenous catalysts. This paper reviews biodiesel production, prospects, benefits and challenges as a replacement for petrol diesel.

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