Abstract
Copolymers of ethylene and vinyl acetate, propylene, vinyl acetate and carboxylic acid esters, and methyl methacrylate with different number–average molecular weights and molecular–weight distribution (MWD) were investigated as pour depressants for middle–distillate winter–grade fuels. The specific character of the effect of the additives on fuels with different n–paraffin content and MWD is established. The effectiveness of the additives is determined by the presence of a gently sloping high–molecular–weight (C26+) “tail” on the MWD curve of the n–paraffins in the base fuel. The optimum concentrations of pour depressants for middle–distillate fuels manufactured at YuKOS Oil Co. refineries are determined.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
