液氮洗的模拟与优化

发布时间：2018-03-12 15:28

  本文选题：液氮洗　切入点：焦耳-汤姆逊效应　出处：《化学工程》2016年12期 　论文类型：期刊论文

【摘要】：以河南心连心化肥有限公司的液氮洗作为研究对象,以其设计数据和实际数据为基础,应用Aspen Plus流程模拟软件,对该流程进行建模、模拟和技术分析,针对实际运行过程中,液氮洗冷量富余的情况,提出相应的操作优化措施。提高燃料气的出口压力可以减少冷量的产生,燃料气的出口压力从300 k Pa,提高到1 900 k Pa,冷量大概产生10 k W。但是,并不能从根本上解决燃料气外排的这种情况。把中压配氮由内配氮改成外配氮,减少焦耳汤姆逊效应的产生,使产生的冷量较少。将内配氮流量1 507 kmol/h调节为1 100 kmol/h时,可以消除燃料气外排的现象。
[Abstract]:Taking the liquid nitrogen washing of Henan Xinlianxin Fertilizer Co., Ltd as the research object, based on the design data and the actual data, the modeling, simulation and technical analysis of the process are carried out by using Aspen Plus process simulation software, aiming at the actual running process. In the case of excess liquid nitrogen washing cooling capacity, the corresponding operation optimization measures are put forward. Increasing the exit pressure of fuel gas can reduce the production of cold quantity. The outlet pressure of fuel gas is increased from 300 kPato to 1 900 kPa. the cooling rate is about 10 kW. however, It can not fundamentally solve the problem of fuel gas efflux. When the medium pressure nitrogen distribution is changed from internal nitrogen to external nitrogen, the generation of joule Thomson effect is reduced, and the cold amount is reduced. When the flow rate of internal nitrogen is adjusted to 1 100 kmol/h, the flow rate of 1 507 kmol/h is adjusted to 1 100 kmol/h. The phenomenon of fuel gas discharge can be eliminated.
【作者单位】： 河南心连心化肥有限公司;
【分类号】：TQ113.26
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本文编号：1602170