【正文】 .............................................10 醇胺法脫硫原則工藝流程： ......................................................................................10 直流法硫磺回收工藝流程： ......................................................................................11 3 脫硫裝置 ............................................................................................................................12 脫硫工藝方法選擇 ..........................................................................................................12 脫硫的方法 ...............................................................................................................13 常 用醇胺溶液性能比較 .............................................................................................14 醇胺法脫硫的基本原理 ....................................................................................................17 主要工藝設(shè)備 ...................................................................................................................18 主要設(shè)備作用 ............................................................................................................18 運(yùn)行參數(shù) ....................................................................................................................18 操作要點 ....................................................................................................................19 乙醇胺降解產(chǎn)物的生成及其回收 .....................................................................................21 脫硫的開、停車及正常操作 .............................................................................................21 乙醇胺溶液脫硫的開車 ..............................................................................................21 保證乙醇胺溶液脫硫的正常操作 ...............................................................................22 胺法的一般操作問題 ........................................................................................................22 第 3 頁 胺法存在的一般操作問題 ..........................................................................................22 操作要點 ....................................................................................................................23 選擇性脫硫工藝的發(fā)展 ....................................................................................................24 4 節(jié)能 ...................................................................................................................................24 裝置能耗 ..........................................................................................................................24 裝置中主要 的能量消耗是在閃蒸罐、換熱器和再生塔。 ...................................................24 節(jié)能措施 ..........................................................................................................................24 5 環(huán)境保護(hù) ..........................................................................................................................25 建設(shè)地區(qū)的環(huán)境現(xiàn)狀 ........................................................................................................25 主要污染源和污染物 ........................................................................................................26 污染控制 ..........................................................................................................................26 6 物料衡算與熱量衡算 ..........................................................................................................27 天然氣的處理量 ...............................................................................................................27 MDEA 的循環(huán)量 ................................................................................................................28 熱量衡算 .........................................................................................................................29 ........................................................................................31 吸收塔的工藝設(shè)計 ..................................................................................................32 選型 ...........................................................................................................................32 塔板數(shù) .......................................................................................................................32 塔徑 ...........................................................................................................................32 堰及降液管 ................................................................................................................34 浮閥計算 ....................................................................................................................35 塔板壓降 ...................................................................................................................36 塔附件設(shè)計 ................................................................................................................36 塔體總高度的設(shè)計 .....................................................................................................38 8 參數(shù)校核 .............................................................................................................................39 浮閥塔的流體力學(xué)校核 ....................................................................................................39 溢流液泛的校核 .........................................................................................................39 液泛校核 ....................................................................................................................39 液沫夾帶校核 ............................................................................................................39 第 4 頁 塔板負(fù)荷性能計算 ...........................................................................................................40 漏液線（ 氣相負(fù)荷下限線） ......................................................................................40 過量霧沫夾帶線 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