【正文】 ............. 11 甲醇合成塔 ...................................................................................................................... 11 冷管式均溫型甲醇合成塔 ........................................................................................ 11 軸徑向多層絕熱甲醇塔 ...........................................................................................12 甲醇合成塔的選型 ..................................................................................................13 冷凝器 .............................................................................................................................13 甲醇分離器 ......................................................................................................................14 循環(huán)壓縮機 ......................................................................................................................14 4 聯(lián)醇生產(chǎn)的工藝計算 ..................................................................................................................14 工藝計算說明 ...................................................................................................................15 聯(lián)醇生產(chǎn)氨物料概算 ........................................................................................................15 湖南科技大學(xué)本科生畢業(yè)設(shè)計（論文） 2 甲醇生產(chǎn)的物料平衡計算 .................................................................................................16 甲醇生產(chǎn)所需的總氣量 ..........................................................................................16 循環(huán)氣量的計算 ....................................................................................................21 系統(tǒng)醇后氣量和入系統(tǒng)氣量的計算 ........................................................................21 1合成塔入塔氣量的計算 ......................................................................................22 1合成塔出塔氣量的計算 ......................................................................................22 1甲醇分離器出口氣體和液體產(chǎn)品流量的計算 .......................................................22 1甲醇合成塔弛放氣流量計算 ...............................................................................24 2甲醇合成塔進塔氣流量計算 ...............................................................................24 2甲醇合成塔出塔氣流量的計算 ............................................................................25 2甲醇分離器出口氣體和液體產(chǎn)品量的計算 ...........................................................25 2甲醇合成塔弛放氣流量的計算 ............................................................................26 聯(lián)醇生產(chǎn)物料平衡匯總表 ......................................................................................26 甲醇生產(chǎn)的熱量衡算 .......................................................................................................27 甲醇合成塔的熱量平衡計算 ...................................................................................28 甲醇水冷器的熱量平衡計算 ...................................................................................32 催化劑（觸媒）體積 .......................................................................................................35 5 甲醇合成塔的機械設(shè)計計算 ........................................................................................................36 擇筒體材料 .....................................................................................................................36 按設(shè)計壓 力計算筒體和封頭壁厚 .....................................................................................36 筒體壁厚 ...............................................................................................................36 封頭壁厚 ...............................................................................................................37 夾套壁厚計算 .................................................................................................................37 設(shè)備自重計算 .................................................................................................................37 塔體質(zhì)量 ...............................................................................................................37 塔體構(gòu)件質(zhì)量 ........................................................................................................37 保溫層質(zhì)量 .........................................................................................................37 平臺質(zhì)量 ...............................................................................................................38 催化劑質(zhì)量 ...........................................................................................................38 物料質(zhì)量 ...............................................................................................................38 附件質(zhì)量 ...............................................................................................................38 充水質(zhì)量 ...............................................................................................................38 6 操作要點 ....................................................................................................................................38 工藝參數(shù)的控制 ..............................................................................................................38 合成塔溫度的控制 .................................................................................................38 聯(lián)醇工藝中甲醇合成的 壓力影響因素 .....................................................................40 循環(huán) 氣量的控制 ....................................................................................................40 進塔氣體組分的控制 .............................................................................................41 技術(shù)指標(biāo) ......................................................................................................................42 湖南科技大學(xué)本科生畢業(yè)設(shè)計（論文） 3 合成工段的正常工藝指標(biāo) ......................................................................................42 質(zhì)量指標(biāo) ...............................................................................................................42 7 生