【正文】 邯鄲學(xué)院本科畢業(yè)設(shè)計 題 目 年產(chǎn) 12 萬噸合成氨脫碳工段工藝設(shè)計 學(xué) 生 馮文慧 指導(dǎo)教師 梁亞男 講師 年 級 20xx 級 專 業(yè) 應(yīng)用化學(xué) 系 部 化學(xué)系 邯鄲學(xué)院化學(xué)系 20xx年 6月 鄭重聲明 本人的畢業(yè)設(shè)計是在指導(dǎo)教師 梁亞男 的指導(dǎo)下獨立撰寫并完成的。畢業(yè)論文沒有剽竊、抄襲、造假等違反學(xué)術(shù)道德、學(xué)術(shù)規(guī)范和侵權(quán)行為，本人愿意承擔(dān)由此產(chǎn)生的各種后果，直至法律責(zé)任；并可以通過網(wǎng)絡(luò)接受公眾查詢。特此鄭重聲明。 畢業(yè)設(shè)計作者： 年 月 日 I 摘 要 本設(shè)計是年產(chǎn) 十二 萬噸合成氨脫碳工段工藝的設(shè)計。二氧化碳是氨合成催化劑的毒物，因此需要把這些雜質(zhì)除去，同時回收的二氧化碳也可以用于其他化學(xué)物質(zhì)的合成，比如尿素，化肥等。本設(shè)計采用改良的 碳酸丙烯酯 和兩段吸收兩段再生的工藝來脫除合成氣中的二氧化碳，并對吸收液進(jìn)行再生。設(shè)計內(nèi)容主要包括生產(chǎn)工藝的確定和比較、物料衡算和能量衡算、主要設(shè)備的設(shè)計與選型。主要設(shè)備為二氧化碳吸收塔：上 塔徑為 ，填料層高 18m，下塔徑為 ，填料層高度為 12米，全塔填料層總高為 30m。通過吸收塔將原料氣中的二氧化碳含量降低到 1%以下，以滿足后續(xù)工藝需求。并使用 CAD軟件繪制帶有工藝控制點的流程圖和二氧化碳吸收塔設(shè)備結(jié)構(gòu)圖。 關(guān)鍵詞 合成氨 脫碳 碳酸丙烯酯 工藝設(shè)計 吸收塔 II The Design of 120kt/a Synthetic Ammonia Purification Section Process Feng WenHui Driected by Lecturer LiangYanan Abstract The design is an annual output of 100,000 tons of synthetic ammonia decarburization section in the design process. The carbon dioxide is harmful to ammonia synthesis catalyst, so it need removal of carbon dioxide in the feed gas, and it can be used for the production of other chemicals for example urea. It uses the developed way of hot solution of aqueous potassium carbonate and the process of two absorbtion and two recovery to remove the carbon dioxide of syngas, and to recover the carbon dioxide from the solution. The content of the design mainly includes the choice of the making technology, mass and energy balance, the design of the equipments and tubes. The main equipment of this design is carbon dioxide absorption tower. The diameter of the upper part of the tower is 3100mm, height of the packing layer is 18m, diameter of the lower part of the tower is 3600mm and the height of the packing layer is 12m. In this way, to make the levels of carbon dioxide in feed gas be reduced to less than 1%, to meet the demand. The process flow chart with control points and synthesis tower assembly were drawn with CAD. Keywords Synthetic ammonia Decarburization process The hot solution of aqueous Technological design 目 錄 摘 要 .........................................................................................................................................I 1 前言 ...................................................................................................................................... 1 2 合成氨的概述 ...................................................................................................................... 1 氨的發(fā)現(xiàn)與制取 ............................................................................................................. 1 氨的性質(zhì)與用途 ............................................................................................................. 1 合成氨工業(yè)的發(fā)展現(xiàn)狀 ................................................................................................. 1 合成氨典型流程 ............................................................................................................. 1 脫碳在合成氨中的作用和地位 .....................................................錯誤 !未定義書簽。 3 脫碳方法及工藝的選擇 ...................................................................................................... 3 脫碳方法的選擇 ............................................................................................................. 3 脫碳工藝的選擇 ............................................................................................................. 6 脫碳工段主要設(shè)備的選擇 ............................................................................................. 6 4 工藝計算 .............................................................................................................................. 7 工藝條件 ......................................................................................................................... 7 工藝過程 ......................................................................................................................... 7 5 主要設(shè)備的計算與選型 ...................................................................................................... 8 二氧化碳吸收塔 ............................................................................................................. 8 二氧化碳再生塔 ........................................................................................................... 11 6 車間布局 ............................................................................................................................ 11 車間設(shè)計任務(wù) ............................................................................................................... 11 廠房 的整體布 局設(shè)計 ................................................................................................... 12 車間內(nèi)輔助室與生活區(qū)布局 ....................................................................................... 12 7 脫碳三廢的處理初步設(shè)計 ........................................................................