【摘要】 为了比较分壁式精馏塔与常规序列塔的能耗,确定其适用的范围,分别建立了2种常规序列塔和分壁式精馏塔的数学模型。采用数学编程软件Matlab对这3种精馏塔进行编程计算,比较了相同分离要求下,不同进料组成及不同分离指数、相对挥发度对分壁式精馏塔的节能情况的影响。结果表明,中间组分的摩尔分数越高分壁式精馏塔的节能效果越明显,所以分壁式精馏塔适用于分离进料中间组分摩尔分数较高且分离指数接近于1.0,相对挥发度接近于2的三元物系。更多还原

【Abstract】 To compare the energy consumption of dividing wall column compared with conventional sequence column and determine its suitable application scope,mathematical model of dividing wall column and two kinds of conventional sequence column are established. Then these three kinds of distillation column are simulated by Matlab. The influence of different feed composition and relative volatility on the energy-saving is studied under the same separation requirements. The results show that the dividing wall column is mainly applicable for the feed with high concentration of middle components,ESI near 1 and relative volatility near 2.更多还原