Minimum energy consumption process synthesis for energy saving

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• 作者：Jia Xiao-Ping ; Wang Fang ; Xiang Shu-Guang ; Tan Xin-Sun ; Han Fang-Yu
• 关键词：Process synthesis ; Minimum energy consumption ; Integration degree ; Heat integration ; Energy saving
• 刊名：Resources ; Conservation and Recycling
• 出版年：2008
• 期刊代码：61_09213449
• 类别：env
• 出版时间：May 2008
• 卷：52
• 期：7
• 页码：1000-1005
• 文件大小：513 K

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.