把某些精馏塔的冷凝器放出的热,引入其它精馏塔的再沸器作为热源,有可能降低精馏塔能耗的50%。本文将概述一个大厂在典型的并联精馏系统中所采用的热联用方法。例如,在一个生产多种石油系燃料、芳香烃和烯烃的复杂装置中,释放出大量的150—350℉范围的热量,这些热量通过冷凝器、换热器和中间冷凝器传给 It is possible to reduce the energy consumption of the rectification column by 50% by using the heat released from the condensers of some of the rectification columns as the reboiler of other rectification columns. This article will outline the method of thermal integration that a major plant uses in a typical parallel distillation system. For example, in a complex plant that produces a variety of petroleum fuels, aromatics and olefins, a significant amount of heat is released in the 150-350 ° F range, which is passed through condensers, heat exchangers, and intermediate condensers