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摘要:本文在前人研究的基础上,首先选定了直接法进行氢气的回收和利用。在了解氢气处理相应工段流程后后主要对换热器E101和热在生塔进行了相应计算和设计选型校正。在设计中，一是利用AspenPlus 中的PURE等其他工具决定最终的设计压力及温度；二是选用NRTL-RK物性方程，对年产5.8万吨隔膜法制烧碱中的氢气进行了流程模拟、物料衡算、热量衡算、典型塔设备设计及对泵、换热器等设备进行了选型。根据模拟得到的工艺流程的完整模型，依次对Heater、HeatX、Flash2、Pump、RadFrac、FSplit进行了仿真计算，对热再生塔进行了水力学模拟计算分析。根据模拟分析计算结果，找出了该塔的操作弹性范围，并通过软件进行了塔设备的校核，并用自己编写的程序进行塔板的布置。最后在相关设计基础上进行了PID图和相关设备图的绘制。
毕业论文关键字:氢气；工艺设计；ASPEN模拟；衡算;吸收塔;换热器
Design of electrolytic caustic soda hydrogen processing section 58 thousand tons / year
Abstract: On the basis of previous studies, the direct method is used for the recovery and utilization of hydrogen. In understanding hydrogen treatment corresponding section in the process before and after the main heat exchanger E101 and heat in the tower of the corresponding calculation and design and selection of the correction. In the design, one is using Aspen plus pure and other instruments to determine the final design pressure and temperature; second is the choice NRTL-RK equation. The annual capacity of 5.8 million tons of diaphragm caustic soda production of hydrogen process simulation, material balance, heat balance, typical tower equipment design and of the pump, heat exchanger etc. equipment selection. According to the simulation of the process flow of the complete model, in order to Heater, HeatX, Pump, RadFrac, FSplit, Flash2 simulation calculation, the thermal regeneration tower of the hydraulic simulation analysis. According to the simulation results, the operating flexibility of the tower was found, and the tower equipment was checked by the software, and the layout of the tower was carried out by the program. Finally, based on the relevant design of the PID diagram and related equipment drawing.
Key words: hydrogen; process design; ASPEN simulation; calculation; absorption tower; heat exchanger
目录
1绪论 1
1.1概述 1
1.1.1氢气理化的性质 1
1.1.2氢气理化的用途 1
1.1.3氯碱工业在国民经济中的地位 2
2氢气处理工艺 3
2.1氢气处理的任务和方法 3
2.2氢气处理工艺流程确定 3
3工艺计算 4
3.1氢气处理工艺流程 4
3.2计算依据 4
3.2.1计算基准 4
3.2.2操作压力 4
3.2.3操作温度 4
3.2.4氢气纯度 5
3.2.5年操作时间 5
3.2.6年产量 5
3.2.7相关物性数据 5
3.3工艺计算 5
3.3.1电解饱和食盐水 5
3.3.2盐水氢气热交换器 6
3.3.3洗涤冷却塔