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对西藏伦坡拉原油做了综合评价 ,分析了原油和各个馏分的性质 ,结果表明 :该原油密度大 ( ρ2 0 =0 .94 92g/cm3) ,粘度高 (υ50 =2 3 4 55.5mPa·s) ,凝点高 ( 48℃ ) ,残炭较高 ,热值较高 ,蜡含量高 ,属高蜡原油。西藏伦坡拉原油实沸点蒸馏及窄馏分性质分析表明 ,原油初馏点为 1 34℃ ,小于 2 0 0℃汽油馏分收率为 1 .4 0 % ,柴油 ( 2 0 0～ 350℃ )馏分收率为 6.90 % ,润滑油 ( 350～ 50 0℃ )馏分收率为 1 7.0 6% ,大于 350℃重油收率高达 91 .4 1 %。该原油胶质含量高达 4 1 .4 3% ,沥青质含量低仅为 0 .4 7% ,硫含量低 ,属低硫中间基原油。
The comprehensive evaluation of Lunpola crude oil in Tibet analyzed the properties of crude oil and various fractions. The results show that the crude oil has high density (ρ20 = 0.9492g / cm3) and high viscosity (ν50 = 2345.5mPa · s), high freezing point (48 ℃), high residual carbon, high calorific value, high wax content, which belongs to high wax crude oil. The analysis of the boiling point and the narrow fractions of solid raw materials in Lun Pola in Tibet shows that the initial boiling point of crude oil is 1 34 ℃, the yield of gasoline fractions less than 200 ℃ is 1.40% and the diesel fraction (200 ~ 350 ℃) The yield was 6.90%. The yield of distillate of lubricating oil (350-50O0C) was 1 7.06%. The yield of heavy oil of more than 350C was as high as 91.41%. The crude oil content as high as 41.34%, low asphaltene content of only 0.47%, low sulfur content, is a low sulfur intermediate base oil.