【正文】 ction of dimethyl ether under construction unit of production are methanol method. The liquid phase methods and production process due to low operating pressure, single reactor capacity is low, the have certain pollution caused by device, high investment, high power consumption, unfavorable accumulates promotion. Methanol gas phase method at present stage is the most economic and reasonable dimethyl ether production methods. At home and abroad and plans to build and the scale of building in dimethyl ether production device are methanol gas phase method. Methanol gas phase method synthesis of dimethyl ether is at home and abroad and dimethyl ether, the main technology of production with fine methanol as raw materials, dehydrated, reaction byproducts less, dimethyl ether purity of %, the craft is mature, the device wide adaptability, simple posttreatment, can be directly built in methanol production factory, also can be built in other public facilities good the methanol production factory. The law should pass methanol synthesis, methanol distillation, methanol dehydration and dimethyl ether distillation, etc. Craft. At present foreign large dimethyl ether released most of the construction project by twostep process technology, explain methanol gas phase method has the strong prehensive petitive power. Key words： Methanol Dimethyl ether gasification 內(nèi)蒙古科技大學(xué)畢業(yè)設(shè)計(jì)說(shuō)明書 3 目錄 摘 要 .........................................................................................................................................1 ABSTRACT ...............................................................................................................................2 前 言 .........................................................................................................................................1 第一章 綜述 ..........................................................................................................................2 緒論 ..............................................................................................................................2 甲醇的性質(zhì) ..................................................................................................................2 甲醇的物理化學(xué)性質(zhì) .............................................................................................2 甲醇生產(chǎn)工藝方法 .................................................................................................5 甲醇原料氣的制造與凈化 ..........................................................................................6 甲醇合成 催化劑與工序 .........................................................................................7 粗甲醇精餾工藝 .....................................................................................................8 甲醇生產(chǎn)技術(shù)的三種工藝 .....................................................................................8 煤、天然氣、焦?fàn)t氣制甲醇的 生產(chǎn)方法 ...........................................................10 目前生產(chǎn)技術(shù)主要特點(diǎn) ............................................................................................ 11 來(lái)源路線豐富化 ................................................................................................... 11 大型裝置普遍化 ...................................................................................................12 能源節(jié)省多樣化 ...................................................................................................12 機(jī)器控制自動(dòng)化 ...................................................................................................13 甲醇的用途 ................................................................................................................14 中國(guó)煤制甲醇發(fā)展歷史及現(xiàn)狀 ................................................................................15 第二章 設(shè)計(jì)依據(jù) ................................................................................................................16 原料及產(chǎn)品規(guī)格 ........................................................................................................16 設(shè)計(jì)規(guī)模和設(shè)計(jì)要求 ................................................................................................16 內(nèi)蒙古科技大學(xué)畢業(yè)設(shè)計(jì)說(shuō)明書 4 設(shè)計(jì)參數(shù) ....................................................................................................................16 反應(yīng)原理 ....................................................................................................................16 反應(yīng)條件 ....................................................................................................................16 反應(yīng)選擇性和轉(zhuǎn)化率 ................................................................................................17 催化劑的選擇 ............................................................................................................17 流程敘述 ....................................................................................................................17 第三章 二甲醚合成工段物料衡算、能量衡算 ...............................................................18 物料衡算 ....................................................................................................................18 計(jì)算催化劑床層體積 ................................................................................................20 反應(yīng)器管子數(shù) ............................................................................................................20 熱量衡算 ....................................................................................................................20 第四章 甲醚精餾塔計(jì)算 ..................................................................................................22 甲醚精餾塔的物料衡算 ............................................................................................22 甲醚精餾塔理論板數(shù)計(jì)算 ........................................................................................23 塔頂（露點(diǎn)）溫度的計(jì)算 ...................................................................................23 塔底（泡點(diǎn)）溫度的計(jì)算 ............................