Process simulation of CHF<sub>3</sub>/N<sub>2 </sub>separation by pressure swing adsorption using SIFSIX-3-Ni

化学工业与工程

Chemcial Industry and Engineering

2025, Vol. 42

Issue (1) :165-172 DOI: 10.13353/j.issn.1004.9533.20230126

Current Issue | Next Issue | Archive | Adv Search

<< | >>

Process simulation of CHF₃/N₂separation by pressure swing adsorption using SIFSIX-3-Ni

ZHANG Qicheng¹, CHEN Xia¹, ZHANG Donghui², WANG Ming¹, ZHANG Hui¹, DONG Zixu¹, WANG Shoudong¹, FU Qiang¹

1. School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, Shandong, China;
2. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

Abstract	Reference	Related Articles

Download: PDF (3401KB) HTML () Export: BibTeX or EndNote (RIS) Supporting Info

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%.

	Service

	Email this article
	Add to my bookshelf
	Add to citation manager
	Email Alert
	RSS
	Articles by authors
	ZHANG Qicheng
	CHEN Xia
	ZHANG Donghui
	WANG Ming
	ZHANG Hui
	DONG Zixu
	WANG Shoudong
	FU Qiang

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

Received 2023-03-04;

About author:

Cite this article:

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,V42(1): 165-172

[1] PANTZALI M N, MOUZA A A, PARAS S V. Pollutant emissions management in an existing plant: The CHF₃ case[J]. Chemical Engineering & Technology, 2005, 28(2): 187-192
[2] 韩文锋, 靳碧波, 周强, 等. 三氟甲烷(HFC-23)的资源化转化利用[J]. 化工进展, 2014, 33(2): 483-492 HAN Wenfeng, JIN Bibo, ZHOU Qiang, et al. Conversion and resource utilization of waste CHF₃ gas[J]. Chemical Industry and Engineering Progress, 2014, 33(2): 483-492(in Chinese)
[3] MAZLOOMI Z, BANSODE A, BENAVENTE P, et al. Continuous process for production of CuCF₃ via direct cupration of fluoroform[J]. Organic Process Research & Development, 2014, 18(8): 1020-1026
[4] 韩文锋, 习苗, 王志昆, 等. La对CHF₃和I₂气相合成CF₃I催化剂性能的影响[J]. 高校化学工程学报, 2016, 30(6): 1372-1379 HAN Wenfeng, XI Miao, WANG Zhikun, et al. Promotional effects of La on Rb-K/AC catalysts in CF₃I synthesis via CHF₃ and I₂ gas-phase reaction[J]. Journal of Chemical Engineering of Chinese Universities, 2016, 30(6): 1372-1379(in Chinese)
[5] 王刚. 三氟甲烷裂解制备四氟乙烯和六氟丙烯的研究[D]. 杭州: 浙江大学, 2015 WANG Gang. Study on pyrolysis of trifluoromethane to tetrafluoroethvlene and hexafluoropropylene[D].Hangzhou: Zhejiang University, 2015 (in Chinese)
[6] CHENG Y, WANG J, HAN W, et al. Catalytic coupling of CH₄ with CHF₃ for the synthesis of VDF over LaOF catalyst[J]. Greenhouse Gases: Science and Technology, 2018, 8(3): 587-602
[7] HAN W, WANG J, CHEN L, et al. Reverting fluoroform back to chlorodifluoromethane and dichlorofluoromethane: Intermolecular Cl/F exchange with chloroform at moderate temperatures[J]. Chemical Engineering Journal, 2019, 355: 594-601
[8] LIM J S, PARK K H, LEE B G, et al. Phase equilibria of CFC alternative refrigerant mixtures. binary systems of trifluoromethane (HFC-23) + 1, 1, 1, 2-tetrafluoroethane (HFC-134a) and trifluoromethane (HFC-23) + 1, 1, 1, 2, 3, 3, 3-heptafluoropropane (HFC-227ea) at 283.15 and 293.15 K[J]. Journal of Chemical & Engineering Data, 2001, 46(6): 1580-1583
[9] SHARIATI A, PETERS C J. High-pressure phase equilibria of systems with ionic liquids[J]. The Journal of Supercritical Fluids, 2005, 34(2): 171-176
[10] RUAN X, DAI Y, DU L, et al. Further separation of HFC-23 and HCFC-22 by coupling multi-stage PDMS membrane unit to cryogenic distillation[J]. Separation and Purification Technology, 2015, 156: 673-682
[11] SHIFLETT M B, CORBIN D R, ELLIOTT B A, et al. Sorption of trifluoromethane in zeolites and ionic liquid[J]. The Journal of Chemical Thermodynamics, 2013, 64: 40-49
[12] SHIFLETT M B, CORBIN D R, ELLIOTT B A, et al. Sorption of trifluoromethane in activated carbon[J]. Adsorption, 2014, 20(4): 565-575
[13] YAN H, FU Q, ZHOU Y, et al. CO₂ capture from dry flue gas by pressure vacuum swing adsorption: A systematic simulation and optimization[J]. International Journal of Greenhouse Gas Control, 2016, 51: 1-10
[14] MALEK A, FAROOQ S. Hydrogen purification from refinery fuel gas by pressure swing adsorption[J]. AIChE Journal, 1998, 44(9): 1985-1992
[15] SUSARLA N, HAGHPANAH R, KARIMI I A, et al. Energy and cost estimates for capturing CO₂ from a dry flue gas using pressure/vacuum swing adsorption[J]. Chemical Engineering Research and Design, 2015, 102: 354-367
[16] COLLETTE T W. Prediction of molecular properties with mid-infrared spectra and interferograms[J]. Applied Spectroscopy, 2001, 55(8): 1067-1078
[17] GUO Y, HU J, LIU X, et al. Scalable solvent-free preparation of [Ni₃(HCOO)₆] frameworks for highly efficient separation of CH₄ from N₂[J]. Chemical Engineering Journal, 2017, 327: 564-572
[18] CHEN K, SCOTT H, MADDEN D, et al. Benchmark C₂H₂/CO₂ and CO₂/C₂H₂ separation by two closely related hybrid ultramicroporous materials[J]. Chem, 2016, 1(5): 753-765
[19] FU Q, ZHOU Y, SHEN Y, et al. R₂₃/R₂₂ separation and recovery using the DIST-PSA hybrid system[J]. Industrial & Engineering Chemistry Research, 2017, 56(1): 331-341
[20] SUN W, SHEN Y, ZHANG D, et al. A systematic simulation and proposed optimization of the pressure swing adsorption process for N₂/CH₄ separation under external disturbances[J]. Industrial & Engineering Chemistry Research, 2015, 54(30): 7489-7501
[21] LOPES F V S, GRANDE C A, RIBEIRO A M, et al. Adsorption of H₂, CO₂, CH₄, CO, N₂ and H₂O in activated carbon and zeolite for hydrogen production[J]. Separation Science and Technology, 2009, 44(5): 1045-1073