减压渣油也称减压蒸馏渣油，是指从炼油厂减压塔底抽出的残渣油。 在我国大多数重要油田的原油中，减压渣油的含量较高，大于500℃减压渣油的产率一般为40%~50%。
结果表明：这些参数能定量地表征各种减压渣油在平均结构上的差别。
The results show that the parameters obtained are capable to reflect the average structure of the vacuum residues.
高硫含量原油加工路线的实质，主要是指常压渣油或减压渣油的加工方案。
Actually, the processing route of high sulfur crudes is led to the processing scheme of atmospheric residuum or vacuum residue.
采用剪切界面粘度仪考察了伊朗轻质减压渣油超临界分离馏分的油水界面粘度。
The interfacial viscosity of super critical separated Iranian light vacuum residue fractions was investigated by using shear interfacial viscosity meter.
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