辽河催化原料油组成研究

On the Compositions of Catalytic Stocks from Liaohe Oil

采用减压蒸馏、质谱分析、元素分析和分子质量测定对辽河原油的７种催化原料油进行了馏分组成、族组成和结构族组成的分析。讨论了不同催化原料油组成情况及其对催化裂化反应的影响。分析测定结果表明，这７种催化原料油除常渣外，胶质沥青质含量均不高；饱和烃含量均较高；芳烃含量除油浆、回炼油外，其余原料含量均较低，所以除油浆、回炼油外，均是作催化裂化的良好原料。分析结果同时也证明，辽河原油确实在变重，由低硫中间－石蜡基向低硫环烷－中间基方向发展。

The fraction compositions, group compositions and structure compositions of seven catalytic stocks were determined by means of vacuum distillation, mass spectrum, element analysis and molecular mass measurement. The effects of the compostions of different catalytic stocks on catalytic cracking reaction was discussed. It is shown that the gam and alsphene in the seven catalytic stocks were not very high except in residual oil; the saturate hydrocarbons in all seven were higher; aromatic contents were lower except in slurry oil and recycle oil, therefore, the seven catalytic stocks except slurry oil and recycle oil are all good feedings of catalytic cracking unit. The results also show Liaohe oil aloes turn heavier from low sulphur middle-paraphin base to low sulphur naphthene middle base.