能量集成蒸馏塔系列的合成

本文分两阶段合成最优热集成蒸馏塔网络:首先优化设计变量使一切可能的热集成产生最大的增益,然后通过合成热集成树在分离顺序空间中找出最小分离成本顺序.由于可行的换热塔对数目不多,而且采用了简捷方法确定最优蒸馏压力,大大减轻了计算量.以一个很通行的例子演示了合成过程.对不同方法合成结果的比较表明新方法对于能量和分离成本均实现了更大幅度的节省.

The Synthesis of Energy Integrated Distillation Trains

The energy integrated distillation train is synthesized in two levels: Maximizing the net benefits of heat inte-gration over both design variables of the simple columns and heat-matches among them, and then minimizing the total costs of the train over all separation sequences by means of integration trees. It does not involve much computation because the feasible heat matches are few and a simplified technique to determine the optimal distillation pressure is employed. The synthesis procedure is illustrated by a popular example, and the comparison of the synthesis results of different methods shows that the new strategy can achieve more savings in both energy and separation costs.