Method of predicting equimolecular mixture of  ethylene cracking feedstock

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Method of predicting equimolecular mixture of ethylene cracking feedstock

更新时间：2025-12-10

- Method of predicting equimolecular mixture of ethylene cracking feedstock
- CIESC Journal Issue 12, (2011)
- 作者机构：
  
  清华大学化学工程系,北京,100084
- 作者简介：
- 基金信息：
- DOI：
  CLC： 0.3969/j.issn.0438-1157.2011.12.021
- Online First：05 December 2011，
  
  Published：05 December 2011
- 稿件说明：
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彭辉. Method of predicting equimolecular mixture of ethylene cracking feedstock[J]. CIESC Journal, 2011, (12).
DOI：

彭辉. Method of predicting equimolecular mixture of ethylene cracking feedstock[J]. CIESC Journal, 2011, (12). DOI：

摘要

石油烃的组成分析是建立石油烃热裂解的自由基机理反应模型的前提。本文将作为乙烯裂解原料的石油烃组成分子的结构特征以及石油烃的常规物性数据，如平均分子量、氢碳比、PIONA值、模拟蒸馏馏程等，与信息熵理论相结合，建立了预测其等效分子组成的方法。以预测石脑油、加氢尾油的等效分子组成为例，所产生的等效分子组成的常规物性计算值与实验值吻合较好，验证了该方法的有效性。

Abstract

The model of the petroleum hydrocarbon pyrolysis process based on free radical mechanism requires analyzing the detailed components of petroleum hydrocarbon.This paper integrated the molecular attributes in the petroleum hydrocarbon and the industrial indices of the petroleum hydrocarbon such as average molecular weight

H/C-ratio

the paraffin

isoparaffin

olefins

naphthenes

aromatics (PIONA）mass fractions and a set of ASTM boiling points and the information entropy theory to predict the equimolecular mixture of the petroleum hydrocarbon.The method was applied in predicting the equimolecular mixture of naphtha and heavy vacuum gas oil.The calculated values of equimolecular mixture were in good agreement with the experiment data and the result proved that this method is effective.

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