期刊
ENERGIES
卷 14, 期 13, 页码 -出版社
MDPI
DOI: 10.3390/en14133839
关键词
energy efficiency; ethylbenzene production; heat pump; HEN retrofit; Hysys model; Pinch analysis
This study analyzed the existing heat exchanger network for ethylbenzene production and proposed four different retrofit projects, with an economic analysis showing the joint project to be the most effective, reducing steam consumption and carbon dioxide emissions by 34%.
This paper presents both the results of a study of the existing heat exchanger network (HEN) of an industrial unit for ethylbenzene (EB) production by the alkylation of benzene with ethylene, and an analysis of four different HEN retrofit projects carried out using process integration methods. The project of modernization of HEN was carried out using classical methods of Pinch analysis. For this case, the value of Delta T-min is determined, which is limited by the technological conditions of the process. Additionally, two different heat pump (HP) integration options and the joint retrofit Pinch project with HP integration are under consideration. The economic analysis of each of the projects was carried out. It is shown that the best results will be obtained when implementing the joint project. As a result, steam consumption will be reduced by 34% and carbon dioxide emissions will be decreased by the same amount.
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