【正文】 目 錄 1 緒 論 ................................................................................................................. 1 煤氣的終冷及洗萘工藝 .................................................................................. 4 .................................................................... 4 洗苯工藝 ....................................................................................................... 6 焦油洗油吸收法 .................................................................................. 7 脫苯工藝 ....................................................................................................... 8 蒸汽加熱法生產(chǎn)一種苯 ..................................................................... 8 、管式爐加熱法生產(chǎn)一種苯的工藝 ....................................................... 9 3 粗苯回收原理 ..................................................................................................... 10 粗苯回收原理及影響因素 ............................................................................ 10 洗油回收粗苯的原理 ......................................................................... 10 影響粗苯吸收的因素 ......................................................................... 10 脫苯原理及影響因素 ................................................................................... 12 脫苯原理（蒸汽法） ......................................................................... 12 影響脫苯的因素 ................................................................................ 12 4 主要設(shè)備論證及選型 .......................................................................................... 12 洗苯塔 ........................................................................................................ 13 空噴塔 .............................................................................................. 13 板式塔（孔板塔） ............................................................................. 13 填料塔 .............................................................................................. 13 脫苯塔 ........................................................................................................ 14 貧油冷卻器和貧富油換熱器 ......................................................................... 15 貧油冷卻器 ....................................................................................... 15 貧富油換熱器 .................................................................................... 15 5 生產(chǎn)工藝說明 ..................................................................................................... 15 工 藝流程詳述 .............................................................................................. 15 輕質(zhì)焦油終冷洗萘 ............................................................................. 15 洗苯 .................................................................................................. 16 脫苯 .................................................................................................. 16 操作技術(shù)指標 .............................................................................................. 16 終冷洗萘工藝 .................................................................................... 16 洗苯工藝 ........................................................................................... 17 脫苯工藝 ........................................................................................... 17 工藝布置 ..................................................................................................... 18 6 主要設(shè)備的工藝計算和選型 ................................................................................ 19 終冷洗苯部分的工藝計算及設(shè)備選型 .......................................................... 19 橫管終冷洗萘塔的計算 ................................................................................ 21 洗苯塔的計算： .......................................................................................... 29 蒸 餾脫苯部分設(shè)備計算和選型 .................................................................... 33 管式爐： ........................................................................................... 34 脫苯塔計算： .................................................................................... 43 分縮器的計算： ................................................................................ 46 貧富油換熱器的計算和選型 ： ..................................................................... 47 貧油冷卻器的計算： ................................................................................... 50 冷凝冷卻器的計算 ： .................................................................................. 51 管道計算 .................................................................................................. 51 7 粗苯工段崗位定員及操作規(guī)程 ............................................................................ 55 操作崗位的確定及定員 ................................................................................ 55 崗位的確定 ....................................................................................... 55 崗位定員 ........................................................................................... 55 崗位操作規(guī)程 .............................................................................................. 55 崗位操作 ........................................................................................... 55 洗滌部分開、停工操作 ...................................................................... 56 蒸餾部分開、停工操作 ...................................................................... 56 特殊操作 ........................................................................................... 57 8 非工藝部分 .......................................................................................................... 58 防火防爆 .................................................................................................. 58 供汽和給排水 ............................................................................................. 58 、供汽： .......................................