Enhancement of Flow Properties Biodiesel Using Sorbitan Monooleate

Depletion of fossil fuel and increased pollution caused by the burning of fossil fuel is a leading fac-tor in to use of alternate energy especially palm oil biodiesel as a mixture of diesel oil fuel (B-XX). It was reported that the use of the B-20 caused a blockage in the vehicle’s fuel filter. The blockage is caused by the presence of deposits formed from the agglomeration of monoglycerides. Three different biodiesels with monoglyceride content were used 0.40%-0.60% by mass. The addition of monoglyceride standards (monopalmitin, monostearin, and monoolein) to biodiesel increases the volume of monoglyceride precipitates formed. The presence of these deposits decreases the flow properties of B-20. Research has been carried out to improve the flow properties of biodiesel by adding Sorbitan Monooleate (CMOST) surfactant, especially cloud points (CP) and cold filter plug-ging point (CFPP) parameters. The addition of 0.10%w-1%w CMOST can reduce the CP by 4.80^oC and CFPP by 2^oC. This proves that the addition of SMO will improve the flow properties of B-XX as an alternative energy.