Introduction
Diesel fuels are used in city buses, locomotives,
electric generators, etc., and they have an essential
function in the industrial economy of a country. The
diesel fuel consumption in developed countries has been
increasing continuously over past decades and is set to
continue in the future. One possible alternative to fossil
fuels is the use of biodiesel.1 It consists of methyl esters
of vegetable oils or animal fats, and belongs to ecological
fuels because of its qualitative composition (carbon 77%,
hydrogen 12%, oxygen 11%, traces of nitrogen and
sulfur). As a fuel of biological origin, it is recommended
by the European Union and classified as a prospective
future fuel.2
Introduction
Diesel fuels are used in city buses, locomotives,
electric generators, etc., and they have an essential
function in the industrial economy of a country. The
diesel fuel consumption in developed countries has been
increasing continuously over past decades and is set to
continue in the future. One possible alternative to fossil
fuels is the use of biodiesel.1 It consists of methyl esters
of vegetable oils or animal fats, and belongs to ecological
fuels because of its qualitative composition (carbon 77%,
hydrogen 12%, oxygen 11%, traces of nitrogen and
sulfur). As a fuel of biological origin, it is recommended
by the European Union and classified as a prospective
future fuel.2
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