Abstract: Oxychlorination unit is the main energy consuming unit of a chloroethylene plant, therefore it is worthwhile to apply the pinch technology to analyzing and retrofiting this system so as to reduce energy consumption. In this paper, the pinch technology was used to analyze the oxychlorination unit of a chloroethylene plant. The bottleneck was found and an energy saving retrofit design was proposed and its economic benefit was evaluated.

摘要： 氧氯化单元是氯乙烯装置中耗能最多的单元，对其利用夹点技术进行用能分析并提出节能改造方案，对于提高氯乙烯装置的能量效率和市场竞争力有很重要的意义。本文利用夹点技术对某氯乙烯装置的氧氯化单元进行了分析，找出了其能量利用不合理的环节，针对这些不合理的环节并考虑装置的实际情况，提出了节能改造方案，并对方案进行了经济性评价。