【正文】 ............................................................................... 1 第 1章 綜述 ............................................................................................................................... 2 概述 ................................................................................................................................... 2 合成甲醇水煤氣脫硫的現(xiàn)狀 ........................................................................................... 2 脫硫的方法 ....................................................................................................................... 2 脫硫方法的選取 ............................................................................................................... 3 改良 ADA 的簡述 ............................................................................................................ 4 ADA 的物理化學(xué)性質(zhì) ..................................................................................................... 4 改良 ADA 脫硫的優(yōu)缺點(diǎn) ................................................................................................ 4 優(yōu)點(diǎn) ................................................................................................................................ 4 缺點(diǎn) ................................................................................................................................ 5 第 2章 脫硫工藝流程設(shè)計(jì) ................................................................................................... 6 改良 ADA 脫硫發(fā)反應(yīng)機(jī)理 ............................................................................................ 6 工藝流程 ........................................................................................................................... 6 吸收液指標(biāo) .................................................................................................................... 8 溫度對(duì)脫硫效果的影響 ................................................................................................ 9 對(duì)脫硫效果的影響 ................................................................................................. 9 溶液 PH對(duì)脫硫效果的影響 ......................................................................................... 9 主要設(shè)備介紹 ................................................................................................................... 9 脫硫塔 ............................................................................................................................ 9 噴射再生槽 .................................................................................................................. 10 硫泡沫高位槽 .............................................................................................................. 10 熔硫釜 .......................................................................................................................... 11 第 3章 吸收過程的工藝計(jì)算 ............................................................................................. 12 甲醇產(chǎn)量對(duì)應(yīng)水煤氣處理量 ......................................................................................... 12 物料衡算 ......................................................................................................................... 13 脫除量 ................................................................................................................... 13 吸收劑用量 .................................................................................................................. 13 生成 Na2S2O3 消耗 H2S 的量 ...................................................................................... 13 生成量 ............................................................................................................ 13 理論硫回收量 .............................................................................................................. 13 理論硫回收率 .............................................................................................................. 13 生成 Na2S2O3 消耗純堿的量 ...................................................................................... 13 硫泡沫生成量 .............................................................................................................. 13 入熔硫釜硫膏量 .......................................................................................................... 14 回收率 ........................................................................................................................ 14 熱量衡算 ......................................................................................................................... 14 吸收塔熱量衡算 .......................................................................................................... 14 熔硫釜熱量衡算 .......................................................................................................... 15 填料吸收塔計(jì)算 ............................................................................................................. 16 塔徑及氣速的計(jì)算 ...................................................................................................... 16 填料層高度計(jì)算 .......................................................................................................... 17 壓降的計(jì)算 .................................................................................................................. 18 填料個(gè)數(shù)及持液量的計(jì)算 .......................................................................................... 19 噴射再生槽的計(jì)算 ......................................................................................................... 20 槽體 .............................................................................................................................. 20 噴射器 .......................................................................................................................... 20 輔助設(shè)備的選型 ............................................................................................................. 22 液體分布裝置 .................................