SIFSIX-3-Ni变压吸附分离CHF<sub>3</sub>/N<sub>2</sub>的过程模拟研究

摘要使用SIFSIX-3-Ni (MOF)作为吸附剂,应用Aspen adsorption软件建立双床6步工艺流程模型,对CHF₃/N₂混合气体变压吸附(PSA)提纯CHF₃的过程进行了研究。分析了吸附压力、进料流量、吸附时间、均压时间、降压时间以及真空度等主要工艺参数对φ(CHF₃)和回收率的影响,通过工艺模拟,当吸附压力1.5 bar,进料流量0.6 m³·h^-1,吸附时间165 s,均压时间22 s,逆放时间95 s,真空度0.1 bar条件时,φ(CHF₃)达到99%以上,回收率达到90%以上。

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	张琪成
	陈霞
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	张慧
	董子旭
	王首栋
	付强

关键词： SIFSIX-3-Ni 变压吸附工艺模拟 Aspen adsorption CHF₃

Abstract： The adsorption column was filled with SIFSIX-3-Ni (MOF) as the adsorbent. The purification process of CHF₃ from CHF₃/N₂ mixture by pressure swing adsorption (PSA) was simulated by a two-bed six-step model using Aspen adsorption. The effects of adsorption pressure, feed flow rate, adsorption time, pressure equalization time, blow down time and vacuum degree on the purity and recovery of CHF₃ were studied. The optimum process simulation conditions have been achieved when the adsorption pressure, feed flow rate, adsorption time, pressure equalization time, blow down time and vacuum degree are 1.5 bar, 0.6 m³·h^-1, 165 s, 22 s, 95 s, 0.1 bar, respectively. Under this condition, the purity of CHF₃ is above 99% and the recovery is above 90%.

Keywords： SIFSIX-3-Ni pressure swing adsorption (PSA) process simulation Aspen adsorption CHF₃

Received 2023-03-04;

Fund:山东省自然科学基金面上项目(ZR2020MB121)。

Corresponding Authors: 付强,副教授,fuqiang@tju.edu.cn Email: fuqiang@tju.edu.cn

About author: 张琪成(1997—),男,硕士研究生,现从事吸附分离方面的研究。

引用本文:

张琪成, 陈霞, 张东辉, 王鸣, 张慧, 董子旭, 王首栋, 付强.SIFSIX-3-Ni变压吸附分离CHF₃/N₂的过程模拟研究[J]. 化学工业与工程, 2025,42(1): 165-172

ZHANG Qicheng, CHEN Xia, ZHANG Donghui, WANG Ming, ZHANG Hui, DONG Zixu, WANG Shoudong, FU Qiang.Process simulation of CHF₃/N₂separation by pressure swing adsorption using SIFSIX-3-Ni[J]. Chemcial Industry and Engineering, 2025,42(1): 165-172

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