【正文】 ............... 3 脫乙烷塔的物料平衡 ........................................................................................................................ 4 丙烯精制塔物料衡算 .............................................................................................................................. 5 丙烯精制塔物料平衡 ........................................................................................................................ 5 原料組成及流量 ................................................................................................................................. 6 第 3 章丙烯精制裝置工藝條件的計算 ........................................................................................7 脫乙烷塔工藝條件的確定 ....................................................................................................................... 7 操作壓力的確定 ................................................................................................................................. 7 回流溫度的確定 ................................................................................................................................. 7 塔頂溫度的計算 ................................................................................................................................. 8 塔底溫度的計算 ................................................................................................................................. 8 進料溫度的計算 ................................................................................................................................. 9 脫乙烷塔操作條件匯總 .................................................................................................................... 9 丙烯精制塔工藝條件確定 ..................................................................................................................... 10 操作壓力的確定 ............................................................................................................................... 10 回流溫度的確定 ............................................................................................................................... 10 塔頂溫度的計算 ............................................................................................................................... 10 塔底溫度計算 ................................................................................................................................... 11 進料溫度的計算 ............................................................................................................................... 11 ............................................................................................................ 12 第 4 章塔板數(shù)的確定 ............................................................................................................. 12 脫乙烷塔塔板數(shù)的計算 ......................................................................................................................... 12 最小回流比的計算 ........................................................................................................................... 12 最少理論塔板數(shù) 的計算 .................................................................................................................. 13 理論塔板數(shù)和實際回流比的確定 .................................................................................................. 13 實際塔板數(shù)的確定 ........................................................................................................................... 14 進料位置的確定 ............................................................................................................................... 15 脫乙烷塔塔板數(shù)計算結果匯總 ...................................................................................................... 15 4 丙烯精制塔塔板數(shù)的計算 ..................................................................................................................... 15 最小回流比的計算 最小回流比 ...................................................................................................... 15 最少理論塔板數(shù)的計算 .................................................................................................................. 17 理論塔板數(shù)和實際回流比的確定 .................................................................................................. 17 實際塔板數(shù)的確定 ........................................................................................................................... 17 進料位置的確定 ............................................................................................................................... 18 丙烯精制塔塔板數(shù)計算結果匯總 .................................................................................................. 18 第 5 章 熱量衡算 .................................................................................................................. 19 脫乙烷塔熱量衡算 ................................................................................................................................. 19 冷凝器的熱量衡算 ........................................................................................................................... 19 再沸器的熱量衡算 ........................................................................................................................... 20 全塔熱量衡算 ................................................................................................................................... 20 脫乙烷塔熱量衡算結果匯總 .......................................................................................................... 24 丙烯精制塔熱量衡算 .............................................................................................................................. 24 全凝器的熱量衡算 ........................................................................................................................... 24 再沸器的熱量衡算 ........................................................................................................................... 25 全塔熱量衡算 .........................................................................................................