Method of utilizing tall oil pitch

摘要

A method of treating tall oil pitch. In the present method, part of the fatty acids and the resin acids are released from their sterol esters and wood alcohol esters and converted into methanol esters or ethanol esters. The transesterified products are removed from the pitch by evaporation and then condensed, and by hydrogenating the generated condensate the acids are decarboxylated and the double bonds are satisfied. It is possible to use the present method to produce automotive fuel from tall oil pitch.

主权项

1. A method of producing automotive fuel by treating tall oil pitch which comprises sterol esters of both fatty acids and resin acids, and optionally wood alcohol esters of both fatty acids and resin acids, in which the sterol esters are sourced from tall oil,
wherein
at least part of the fatty acids and at least part of the resin acids are released from their sterol esters and optionally wood alcohol esters and are converted into lower alkyl esters,the lower alkyl esters thus obtained are removed by evaporation from the tall oil pitch and then condensed to produce a condensate, wherein the total metal percentage of the condensate is below 50 mg/liter and,the condensate obtained is then hydrogenated to produce said automotive fuel.