【正文】 .....................................................5 處理量確定 ............................................................................................................................5 設計題目與進程 ....................................................................................................................5 概述 ........................................................................................................................................5 二、 裝置流程概述 ......................................................................................................5 程如下 ..............................................................................................................6 ................................................................................................................6 三 、精餾塔設計 ...............................................................................................................................6 工藝條件的確定 .....................................................................................................................6 苯與甲苯的基礎數(shù)據(jù) ......................................................................................................6 溫度的條件 ......................................................................................................................7 操作壓力選定 ..................................................................................................................7 精餾塔物料恒算 .....................................................................................................................7 摩爾分數(shù) ..........................................................................................................................7 原料液及塔頂、塔底產品的平均摩爾量 ......................................................................7 質量物料恒算與負荷計算及其結果表 ..........................................................................8 塔板數(shù)計算 .............................................................................................................................8 ......................................................................................................................8 做 XY 曲線 .....................................................................................................................8 求 Rmin............................................................................................................................8 求理論塔板數(shù) ..................................................................................................................8 求平均塔效率 ET.............................................................................................................8 求實際塔板數(shù) ..................................................................................................................8 有關物性數(shù)據(jù)的計算 (以精餾段 R1 為例 )..........................................................................9 平均壓力計算 ...................................................................................................................9 平均摩爾質量計算 ...........................................................................................................9 平均密度計算 ...................................................................................................................9 液體平均表面張力計算 ...................................................................................................9 液體的平均粘度 ..........................................................................................................10 精餾塔的塔體工藝尺寸計算 ................................................................................................10 負荷計算 .........................................................................................................................10 摩爾計算： ..............................................................................................................10 同理得質量計算： ..................................................................................................10 不同回流比的負荷結果 .........................................................................................10 Vs和 Ls 計算 .........................................................................................................10 塔徑的計算 .....................................................................................................................10 精餾塔有效高度的計算 .................................................................................................11 塔頂、塔底空間 .............................................................................................................11 塔頂空間 HD ...........................................................................................................11 塔底空間 HB ............................................................................................................11 塔壁厚計算 .....................................................................................................................12 .............................................................................................................12 溢流裝置 .........................................................................................................................12 lw.....................................................................................................................12 hw.............................................................................................................12 Wd 和面積 Af： ..........................................................................12 ho..................................................................................................12 塔板布置及浮閥數(shù)目與排列 ..................................................