畢業設計-年處理25萬噸輕苯加氫精制車間初步設計(編輯修改稿)

　

【文章內容簡介】 ........................................... 6 Crude benzol hydrogenation principle ............................................ 6 Crude benzene hydrogenation process ............................................ 6 Crude benzol hydrogenation process characteristics.................... 10 Major equipment demonstration Determination of the type ................... 12 Packed extraction column .............................................................. 12 Perforatedplate extraction tower .................................................. 12 Pulsed sieve plate extraction column ............................................ 13 Reciprocating plate extraction column.......................................... 13 Rotating disc contactor (RDC) and eccentric rotating disc contactor (ARDC) .................................................................. 14 Based extractant selected .......................................................................... 14 The conclusion ........................................................................................... 15 Chapter 3 Described in detail Process .................................................................... 16 This design choice process ........................................................................ 16 Process principles ........................................................................... 16 The process ..................................................................................... 16 The process parameter list ......................................................................... 17 Chapter 4 Technological Calculation ...................................................................... 19 VIII material balance................................................................................. 19 calculations of pure benzene column ............................................ 20 Calculate data ................................................................................. 20 Material balance of tower .............................................................. 23 Load Calculation of Gasliquid ................................................... 28 Distillation tower Size Calculation ............................................... 33 Design and calculation The process of the tower structure size .. 34 Tray arrangement and the number of float valve arrangement .... 36 Flow tray performance check ........................................................ 38 Tray load performance chart .......................................................... 43 The tower heat balance of pure benzene ................................... 48 Tower of mechanical design ........................................................ 51 Equipment List ........................................................................................... 53 Chapter 5 Equipment Layout................................................................................... 57 of arrangement........................................................................... 57 To meet the production process requirements .............................. 57 In line with the principles of economy.......................................... 57 Meet the safety requirements ......................................................... 57 Favorable manufacturing practices................................................ 58 For easy installation and maintenance .......................................... 58 devices arranged in specific ways ............................................... 58 Arrangement of Tower.................................................................... 58 Arrangement of The reactor ........................................................... 59 Arrangement of Cooling and heat exchange equipment ......... 59 Chapter 6 Nonprocess part................................................................................ 61 Plant layout (civil claim) ........................................................................... 61 The basic principle of site selection .............................................. 61 Develop processing plant indicators ............................................. 62 General layout requirements .......................................................... 63 The water supply........................................................................................ 65 Circulating cooling water system .................................................. 65 Fresh water cooling system............................................................ 65 IX Softener Configuration ................................................................... 65 Drinking Water Systems................................................................. 66 Drainage system ............................................................................. 66 Powered ...................................................................................................... 66 Heating and ventilation ............................................................................. 66 Capacity...................................................................................................... 66 Chapter 7 Economic Benefit Analysis .................................................................... 68 Estimated Investment ................................................................................ 68 Construction costs .......................................................................... 68 Equipment costs.............................................................................. 69 Transfer, training and missioning costs.................................. 72 Unforeseen expenses ...................................................................... 72 Investment in Fixed Assets ..................