年产5万吨合成氨脱碳工段工艺设计化工原理课程设计.docVIP

邯郸学院本科毕业设计 题 目 年产5万吨合成氨脱碳工段工艺设计 邯郸学院化学系 郑重声明 本人的毕业设计是在指导教师梁亚男的指导下独立撰写完成的。如有剽窃、抄袭、造假等违反学术道德、学术规范和侵权的行为，本人愿意承担由此产生的各种后果，直至法律责任，并愿意通过网络接受公众的监督。特此郑重声明。 毕业设计作者： 年 月 日  摘　要 本设计是年产五万吨合成氨脱碳工段初步的设计。脱除原料气中的CO2，对以后的合成工段的意义重大，同时回收的CO2也可以用于其他化学物质的合成。本设计采用改良的热钾碱法和两段吸收两段再生的工艺流程来脱除合成气中的CO2，并对吸收液进行再生。设计内容主要包括生产工艺的比较和确定、能量衡算和物料衡算、主要设备的设计与选型。本设计的主要设备为二氧化碳吸收塔。通过本设计方法，能够使变换气中二氧化碳的含量降至1%左右，具有较好的脱除效果，能够进行下一步的继续。附带的图纸有带控制工艺流程图和二氧化碳吸收塔设备结构图。 The Design of 50kt/a Synthetic Ammonia Purification Section Process An Dong Directed by Lecturer Liang Ya-nan Abstract This design is an annual output of 50,000 tons of synthetic ammonia decarburization section design. Recovering the carbon dioxide is very important to next manufacturing process, and it can be used for producting other chemicals. It uses improvement way of hot solution of aqueous potassium carbonate and two process of absorbtion and recovery, this way can remove the carbon dioxide of syngas and recover the absorbed solution. The content of this design mainly includes the choice of making technologe, mass and energy balance, the design of equipments and tubes. The main equipment of this design is carbon dioxide absorption tower. Through the calculation we use different diameter tower. The diameter of the upper part of the tower is 2000mm. The height of the packing layer is 14m. The diameter of the lower part of the tower is 2400mm and the height of the packing layer is 10m. The design method can reduce the contents of carbon dioxide in transformation gas to about 1%, has better removal effect, and next step can be continue. Besides these, it includes the drawing of controllable technological process, the equipment drawing of the absorbing tower of cabon dioxide. Key words The hot solution of aqueous Decarbonization process Carbon dioxide Absorbing tower Technological design  目 录 摘　要 I 外文页 II 1　前言 1 2　合成氨的概述 1 2.1 氨的发现和制取 1 2.2 氨的性质和用途 1 2.3 我国合成氨工业的发展情况 2 2.4 合成氨技术未来的