Improving the Operational Efficiency of Ethylene Cracking Integrated with Refining by Molecular Management,Industrial & Engineering Chemistry Research

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Improving the Operational Efficiency of Ethylene Cracking Integrated with Refining by Molecular Management
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-07-01 , DOI: 10.1021/acs.iecr.0c01705
Hengchang Gu ₁ , Jianwei Li ₁ , Peng Mu _{2,

3} , Qunxiong Zhu _{2,

3}

Affiliation

A new methodology for improving the operational efficiency of ethylene cracking integrated with refining is proposed. In this work, ethylene feedstock optimization was achieved by screening the low-value materials and naphtha in the refinery through the molecular management approach. The process synthesis-intensification model for ethylene production was developed to identify the opportunities for improving operational efficiency. The P-graph method was applied to accelerate problem solving and generate process routes with the objective function of economic gross potential. To determine the optimal process route, the comprehensive operational efficiency index and light hydrocarbon feedstock ratio were further constructed for process route evaluation. A case study of a real ethylene-refining integrated complex indicates that the proposed method could effectively optimize the operational efficiency of ethylene production and that the economic and inherent safety performances could be notably increased by 22.34% and 67.81%, respectively.

中文翻译：

通过分子管理提高乙烯裂解与精制相结合的操作效率

提出了一种提高乙烯裂解精制效率的新方法。在这项工作中，通过分子管理方法筛选炼油厂中的低价值材料和石脑油，实现了乙烯原料的优化。开发了乙烯生产的过程合成-强化模型，以发现提高运营效率的机会。P-graph方法用于加速解决问题并生成具有经济总潜力的目标函数的工艺路线。为了确定最佳工艺路线，进一步构建了综合运行效率指数和轻烃原料比，以进行工艺路线评估。

更新日期：2020-07-22

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