论文部分内容阅读
通过正十八烷裂解产物中残余液态烃组分的研究来探讨气态烃碳同位素的分馏机理.研究结果表明,正十八烷在相对低温条件下的裂解和聚合作用与高温阶段导致轻烃和多环芳烃生成的歧化反应,可能是造成热解实验中普遍存在的气态烃碳同位素组成发生倒转的主要原因.这将为天然气碳同位素组成的定量模拟提供重要依据.并有助于原油裂解气的判识与评价.
The fractionation mechanism of carbon isotopes in gaseous hydrocarbons was studied by studying the residual liquid hydrocarbon components in n-octadecane cracking products.The results show that the cracking and polymerization of n-octadecane at relatively low temperature and the high temperature stage lead to the light hydrocarbon and The disproportionation reaction of PAHs may be the main reason for the reversal of the carbon isotope composition of gaseous hydrocarbons that prevails in the pyrolysis experiments, which will provide an important basis for the quantitative simulation of carbon isotope composition of natural gas and help the crude oil pyrolysis gas Identification and evaluation.