Influence of paraffin content on low temperature performances of diesel fuel and lube base oil

The influence of dewaxing ratio, added solid and liquid paraffins on the lo w temperature performances of Daqing hydrogenated diesel fuel and hydrogena ted lube base oil was studied in detail. The experimental results show that the solidification points of samples fall rapidly with the increasing of d ewaxing ratio or rise quickly with the adding of solid and liquid paraffins . The quantitative relations between the solidification points of tested sa mples and the dewaxing ratio or the contents of added solid and liquid para ffins could be exactly expressed by the experiential formula presented in t he paper. The sample solidification points predicted by the empirical formu la are well identical with ones determined in the test and the error is gen erally less than 2 degreesC.