Because crude oil from Xinjiang has high vanadium content, its atmospheric residuum and vacuumresiduum shouldn't be directly used as catalytic raw material.
同时新疆原油钒含量高，其常压渣油和减压渣油均不宜直接作催化原料。
2
Vacuumresiduum emulsifying process comprises mixing vacuumresiduum, water and emulsifier containing petroleum sulfonate-formaldehyde condensate through stirring.
一种减压渣油的乳化方法，是将减压渣油、水以及含有石油磺酸盐甲醛缩合物的乳化剂混合，搅拌均匀即可。
3
According to the molecular mass, the vacuumresiduum from Iranian heavy crude oil was separated into fractions by the Supercritical fluid extraction and fractional (SFEF) technology.