Minimum energy consumption process synthesis for energy saving

作者:Jia Xiao Ping*; Wang Fang; Xiang Shu Guang; Tan Xin Sun; Han Fang Yu
来源:Resources, Conservation and Recycling, 2008, 52(7): 1000-1005.
DOI:10.1016/j.resconrec.2008.03.005

摘要

The paper presents a synthesis strategy for the chemical processes with energy saving. The concept of minimum energy consumption process (MECP) is proposed. Three characteristics of MECP are introduced, including thermodynamic minimum energy demand, energy consumption efficiency and integration degree. These characteristics are evaluated according to quantitative thermodynamic analysis and qualitative knowledge rules. The procedure of synthesis strategy is proposed to support the generation of MECP alternatives, which combine flowsheet integration and heat integration. The cases studies will focus on how integration degrees of a process affect the energy-saving results. The separation sequences of the hydrodealkylation of toluene (HDA) process and ethanol distillation process as case studies are used to illustrate.

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