减压蜡油分子重构模型Ⅱ.烃类组成模拟

摘要

The molecule type homologous series ( MTHS) model was used to reconstruct hydrocarbon composition of three types of vacuum gas oil (VGO), the calculated and measured results were consistent well. The simulation results showed that the paraffin distribution of straight-run VGO was normal function, while for naphthenic and aromatic hydrocarbon it was multi-peak type distributions. On the other hand, 1-ring, 2-ring aromatics dominated for hydrogenation coking VGO and FCC VGO. The case studies showed that combined with the macro-and physical properties, the MTHS model could give molecular composition information with boiling temperature for hydrocarbon with different chemical structures.%采用同分异构分子重构模型(MTHS)对3种不同性质减压蜡油馏分进行了烃类组成模拟,模拟计算结果与实测值吻合较好.直馏蜡油中烷烃组分呈明显的正态函数分布,环烷烃和芳烃含量均呈多峰式分布；加氢后焦化蜡油和催化裂化蜡油中芳烃多以一环、二环为主.模拟结果显示,结合重质烃类的宏观物性,通过MTHS模型可重构不同结构烃类随沸点的变化.