（理工学院）论年产30万吨合成氨脱碳工段工艺设计.doc

年产30万吨合成氨脱碳工段工艺设计 [摘要] [关键词] 碳酸丙烯酯法；脱碳工艺；工程设计 The Design of the Decarbonization Section in the Production of the 40 thousand tons Synthetic Ammonia per year Abstract: Decarbonizing section is one of the absolutely necessary sections in the Synthetic Ammonia, and the Carbon dioxide absorption tower and the solution regeneration tower are indispensable tower equipment in the Synthetic Ammonia. This paper tradeoff advantages and disadvantages of much approach to decarbonization, propylene carbonate (PC) decarboniza-tion are selected finally. The technological process was analyzed, and the material and heat was balanced according to parameters and relevant standards firstly. The tower body general structure was designed calculation by using physical absorption Mechanism, mass transfer and heat transfer equation, solution -physical data stc secondly.The diameter of absorption tower is 2.1m, the height of tower is 27m, diameter of desorption tower is 2.4m, the height of tower is 29m, which were designed., And then the strength of the Carbon dioxide absorption tower and the solution regeneration tower are checked. The decarbonizing section structural arrangement was reasonable design finally. As the theoretical preparation work, this designing prepare sufficient theoretical basis for people to analysis the problems of technological process, equipment design, determined root of problems, posing reasonable plan to solve problems. Keywords: Decarbonization process; Carbon dioxide removal with PC method; Proeess design 目录 1 1 1.1合成氨工业概况 1 1.1.1我国合成氨工业发展概况 1 1.1.2发展趋势 1 1.1.3合成氨生产工艺简述 2 1.1.4脱碳单元在合成氨工业中的作用 2 1.1.5脱碳方法概述 2 1.2净化工序中脱碳方法 2 1.2.1化学吸收法 2 1.2.2物理吸收法 3 1.2.3物理化学吸收法 5 1.2.4固体吸附 5 1.3碳酸丙烯酯（PC）法脱碳工艺基本原理 5 1.3.1PC法脱碳技术国内外现状 5 1.3.2发展过程 5 1.3.3技术经济 5 1.3.4工艺流程 5 1.3.5存在的问题及解决的办法 6 1.3.6 PC法脱碳技术发展趋势 6 1.4工艺设计的意义和目的 7 2 全厂总平面的布置和设计 8 2.1全场总平面布置的任务 8 2.2全厂总平面设计的原则 8 2.3全厂总平面布置内容 8 2.4全厂平面布置的特点 8 2.5全厂人员编制 8 3 吸收塔和解吸塔的物料衡算和热量衡算 10 3.1计算依据CO2的PC中的溶解度关系 10 3.2 PC的密度与温度的关系