In this article, biodiesel

production from waste cooking oil with

charcoal pyroligneous liquor was studied with

the objective to analyze the viability of this

environmental pollutant for biofuel production. A

acid catalysis with H2SO4 followed by a alkali

catalysis with KOH was performed in order to

enhance the yield of the transesterification. The

amount of liquor added varied from 20% to 40%

(in relation to the volume of acid). It was also

analyzed if the biofuel produced met the Brazilian

Fuel, Gas and Petroleum Agency Standards

(regulation values), in order to be used in Diesel

engines and ASTM 6751 The obtained results

showed that the biodiesel produced using these

residues met the Standards in relation to density,

kinematic viscosity and acidity (free fatty acids).

However, water content and flash point were not

granted.