1 目录 1 绪论 ............................................................................................................................. 4 1 .1 设计依据 ........................................................................................................... 4 1 .2 技术来源 ........................................................................................................... 4 1 .3 设计内容 ........................................................................................................... 4 1 .4 工艺流程图 ....................................................................................................... 5 1 .5 工艺条件 ........................................................................................................... 5 1 .6 塔型选择 ........................................................................................................... 6 2 主要塔设备的工艺计算 ............................................................................................. 6 2 .1 精馏塔物料衡算 ............................................................................................... 6 2 .1 .1 全塔物料衡算 ......................................................................................... 6 2 .1 .2 塔顶、塔底产品及原料液的平均摩尔质量 ......................................... 7 2 .2 精馏塔工艺条件及有关物性数据计算 ........................................................... 7 2 .2 .1 压强 ......................................................................................................... 7 2 .2 .2 温度 ......................................................................................................... 7 2 .2 .3 密度 ......................................................................................................... 8 2 .2 .4 混合液体表面张力 ............................................................................... 1 0 2 .2 .5 混合...