ORC与卡琳娜热水发电技术对比分析

Comparative Analysis of ORC and Kalina Hot Water Power Generation Technologies

在传统的芳烃装置上将会产生大量的低温余热,在以法国和美国专利商为代表的芳烃装置上,这些低温余热因为温位低的原因,普遍采用空冷冷却,很难被回收利用。某厂芳烃联合装置,采用了低温热回收技术,通过将除盐水作为热载体,加热至120℃左右,再将加热后的除盐水送入ORC热水发电机组和卡琳娜热水发电机组用于发电,大幅降低了装置的能耗,提高了经济效益。文章分别介绍了ORC和卡琳娜热水发电系统的工艺流程和工作原理,同时将两套热水发电系统进行了综合对比分析,为石油化工装置在低温热回收利用上提供了很好的借鉴,为石油化工行业绿色低碳环保提供了探索方向。

In traditional aromatics plant, a large amount of low-temperature residual heat is generated. In the US and French licensed aromatics plants, the low-temperature residual heat is generally used in air cooling, which is difficult to recycle the heat due to its low-temperature level. In an aromatics complex equipped with low-temperature heat recovery technology, the low-temperature residual heat is used to heat demineralized water to about 120℃, and the heated demineralized water, as a heat carrier, is sent to ORC and Kalina hot water generators, which can greatly reduce energy consumption and improve efficiency. This paper introduces the technological process and principle of ORC and Kalina hot water power generation systems, and gives comparative analysis on the two power generation systems. All these can provide a good reference for low-temperature heat recovery, and present an approach for green and low-carbon environmental protection in petrochemical industry.