1、 I 年产 40 万吨合成氨脱碳工段工艺设计 摘要脱碳工段是合成氨工程中必不可少的工段之一，二氧化碳吸收塔和溶液再生塔是脱碳过程中不可缺少的 塔设备。 本文权衡众多合成氨脱碳方法之利弊，最终选择碳酸丙烯酯脱碳法。首先进行工艺流程分析并根据工艺参数及 有关标准进行二氧化碳吸收塔和解析塔内的物、热量衡算；其次就二氧化碳吸收塔、溶液再生塔等设备利用物理吸 收机理、传质传热方程、溶液物性数据等方面的知识进行塔体的总体结构设计和计算，设计出二氧化碳吸收塔的塔 径为 2.1m，塔高为 27m，二氧化碳解吸塔塔径 2.4m，塔高 29m；然后对二氧化碳吸收和解吸塔进行了必要的强度校 核；最后对脱碳工段车间结
2、构布置进行合理的设计。本设计作为理论上的准备工作，为分析工艺流程、设备设计上 存在的问题、确定问题的根源、提出解决问题的合理方案准备了充分的理论依据。 关键词 碳酸丙烯酯法；脱碳工艺；工程设计 II 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 Synthe
3、tic 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. T
4、he 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
