Ethylene-Vinyl Acetate Copolymer/Crude Gossypol Compositions as Pour Point Depressants for Waxy Oil

Table 3

Pour point depression of crude oil sample treated with commercial EVAc and EVAc/CG composition.

Additive concentration (ppm)	Pour point depression (°C)
	EVAc	EVAc/CG composition (wt%)
		90 : 10	80 : 20	75 : 25	70 : 30	65 : 35
50	6	8	8	6	3	1
100	9	11	12	9	4	2
250	8	10	10	11	5	4
500	6	7	7	7	6	4