本文選題：液氮洗　切入點(diǎn)：焦耳-湯姆遜效應(yīng)　出處：《化學(xué)工程》2016年12期 　論文類型：期刊論文

【摘要】：以河南心連心化肥有限公司的液氮洗作為研究對(duì)象,以其設(shè)計(jì)數(shù)據(jù)和實(shí)際數(shù)據(jù)為基礎(chǔ),應(yīng)用Aspen Plus流程模擬軟件,對(duì)該流程進(jìn)行建模、模擬和技術(shù)分析,針對(duì)實(shí)際運(yùn)行過程中,液氮洗冷量富余的情況,提出相應(yīng)的操作優(yōu)化措施。提高燃料氣的出口壓力可以減少冷量的產(chǎn)生,燃料氣的出口壓力從300 k Pa,提高到1 900 k Pa,冷量大概產(chǎn)生10 k W。但是,并不能從根本上解決燃料氣外排的這種情況。把中壓配氮由內(nèi)配氮改成外配氮,減少焦耳湯姆遜效應(yīng)的產(chǎn)生,使產(chǎn)生的冷量較少。將內(nèi)配氮流量1 507 kmol/h調(diào)節(jié)為1 100 kmol/h時(shí),可以消除燃料氣外排的現(xiàn)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.
【作者單位】： 河南心連心化肥有限公司;
【分類號(hào)】：TQ113.26
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本文編號(hào)：1602170