Browse Publications Technical Papers 2013-01-2685
2013-10-14

Crude Tall Oil-Based Renewable Diesel as a Blending Component in Passenger Car Diesel Engines 2013-01-2685

The residue and waste streams of existing industry offer feasible and sustainable raw materials for biofuel production. All kind of biomass contains carbon and hydrogen which can be turned into liquid form with suitable processes. Using hydrotreatment or Biomass-to-Liquid technologies (BTL) the liquid oil can be further converted into transportation biofuels.
Hydrotreatment technology can be used to convert bio-oils and fats in to high quality diesel fuels that have superior fuel properties (e.g. low aromatic content and high cetane number) compared to regular diesel fuel and first generation ester-type diesel fuel. UPM has developed a new innovative technology based on hydrotreatment that can be used to convert Crude Tall Oil (CTO) into high quality renewable diesel fuel.
This study concentrated on determining the functionality and possible effects of CTO based renewable diesel as a blending component on engine emissions and engine performance. Tested fuels were Euro Stage IV diesel (CEC RF-06-03) as reference fuel and 30% CTO renewable diesel, blended with Euro Stage IV diesel.
The results showed that CTO based renewable diesel blend properties were comparable to those of the reference diesel and fulfilled the limits set by the EN590 diesel standard. The engine performance as well as the engine emissions was similar with both fuels.
For initial engine test, the renewable diesel was blended with RF-06-03 CEC reference fuel. During an intense test bench campaign engine load was varied from low load conditions up to full load. These tests revealed, that a blend of v./v. 30 % of the renewable diesel is perfectly suited for operation in a state-of-the-art diesel engine passenger car.

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