乙烯裂解装置加工富乙烷气替代石脑油原料的经济效益分析
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摘要
我国主要大型乙烯裂解装置都有千万吨级的炼厂作为原料依托,形成炼化一体化的企业格局。因此乙烯装置的设计进料是以石脑油为主的混合进料。炼厂富乙烷气即可作为全厂燃料的组分,也可以通过技术手段富集后作为裂解原料。裂解装置加工富乙烷气替代石脑油,要综合考虑装置的自身特性和补充燃料气的价格。本文从投入、产出的相对变化考虑,提出一种量化分析方法,引出公式定量分析裂解装置加工富乙烷气替代石脑油的经济效益变化,可对从事石油化工投资机会研究和企业运行优化的人员有一定帮助。
Each major ethylene cracking unit in China has a large refinery as the raw material support, forming the pattern of refining and chemical integrated enterprise. Therefore, the feedstock for ethylene plant design is a naphtha-dominated mixture. Refinery ethane-rich gas can be used as a fuel gas, or be used as feedstock for ethylene plant after enriched. In order to replace the naphtha with ethane-rich gas, the characteristics of the plant and the price of the fuel gas should be taken in account. A quantitative analysis formula is proposed in this paper to calculate the relative change of input and output of ethylene cracking plant using ethane-rich gas instead of naphtha. This paper can be helpful to the researchers on petrochemical investment and enterprise operation optimization.
Each major ethylene cracking unit in China has a large refinery as the raw material support, forming the pattern of refining and chemical integrated enterprise. Therefore, the feedstock for ethylene plant design is a naphtha-dominated mixture. Refinery ethane-rich gas can be used as a fuel gas, or be used as feedstock for ethylene plant after enriched. In order to replace the naphtha with ethane-rich gas, the characteristics of the plant and the price of the fuel gas should be taken in account. A quantitative analysis formula is proposed in this paper to calculate the relative change of input and output of ethylene cracking plant using ethane-rich gas instead of naphtha. This paper can be helpful to the researchers on petrochemical investment and enterprise operation optimization.
引文
[1]江正洪.由传统炼油向炼化一体化转型的时间与探索[J].炼油技术与工程,2010,40(12):1–5
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[6]吴剑.运用软件模拟技术评价裂解原料[J].乙烯工业,2016,28(1):47–51
[2]王子宗.乙烯丙烯生产技术及经济比较[M].北京:中国石化出版社,2015
[3]王松汉.乙烯工艺与技术[M].北京:中国石化出版社,2012
[4]张敬升.浅冷油吸收工艺回收炼厂饱和干气的模拟[J]石油化工,2014,43(9):1069–1075
[5]齐文峰,任铎,肖庆祥.干气提浓乙烯装置运行优化[J].炼油技术与工程,2012,42(2):19–22
[6]吴剑.运用软件模拟技术评价裂解原料[J].乙烯工业,2016,28(1):47–51