Pressure drop of structured packing in pilot column and comparison to common correlations

doi:10.1016/j.cjche.2023.06.009

中国化学工程学报 ›› 2023, Vol. 64 ›› Issue (12): 281-291.DOI: 10.1016/j.cjche.2023.06.009

• Full Length Article • 上一篇下一篇

Pressure drop of structured packing in pilot column and comparison to common correlations

Emil Madsen, Randi Neerup, Arne Gladis, Jens K. Jørsboe, Nicolas von Solms, Philip L. Fosbøl

Center for Energy Resources Engineering (CERE), Department of Chemical and Biochemical Engineering, Technical University of Denmark (DTU), Søltofts Plads 229, 2800 Kgs. Lyngby, Denmark

收稿日期:2022-07-04 修回日期:2023-06-19 出版日期:2023-12-28 发布日期:2024-02-05
通讯作者: Philip L. Fosbøl,E-mail:plf@kt.dtu.dk
基金资助:
The funding from the BioCO2 project (the Danish government through the EUDP agency No. 64016-0082), the INTERACT project (European Union Seventh Framework Programme FP7/2007-2013 under grant agreement No. 608535) and the financial support from the Center for Energy Resources Engineering (CERE), and the Technical University of Denmark.

Pressure drop of structured packing in pilot column and comparison to common correlations

Emil Madsen, Randi Neerup, Arne Gladis, Jens K. Jørsboe, Nicolas von Solms, Philip L. Fosbøl

Center for Energy Resources Engineering (CERE), Department of Chemical and Biochemical Engineering, Technical University of Denmark (DTU), Søltofts Plads 229, 2800 Kgs. Lyngby, Denmark

Received:2022-07-04 Revised:2023-06-19 Online:2023-12-28 Published:2024-02-05
Contact: Philip L. Fosbøl,E-mail:plf@kt.dtu.dk
Supported by:
The funding from the BioCO2 project (the Danish government through the EUDP agency No. 64016-0082), the INTERACT project (European Union Seventh Framework Programme FP7/2007-2013 under grant agreement No. 608535) and the financial support from the Center for Energy Resources Engineering (CERE), and the Technical University of Denmark.

摘要/Abstract

摘要： Packed columns are widely used in the chemical industry such as absorption, stripping, distillation, and extraction in the production of e.g. organic chemicals, and pharmaceuticals. Pressure loss and pressure drop correlations are of special interest when it comes to the hydrodynamic properties of a column. The pressure loss across the column is of interest in the design phase when the size of the blower to drive the gas stream through the column has to be decided. The loading point and flooding point are also influenced by the pressure loss and the area of operation is determined from these points. This work examines four different correlations on pressure drop. The correlations are (i) Ergun’s equation (1952), (ii) an improved version of Ergun’s equation by Stichlmair, Bravo, and Fair (1989), (iii) an equation developed by Billet and Schultes (1999), and (iv) an equation by Rocha, Bravo, and Fair (1993). The complexity of the correlations is increasing in the mentioned order, Ergun’s equation being the simplest one. This study investigates if the more complicated correlations give better predictions to pressure drop in packed columns. This is determined by comparing the correlations to experimental data for pressure drop in a packed column with 8.2 m of structured packing using water as the liquid and atmospheric air as the gas. Seven experiments were carried out for determining the pressure drop in the column with liquid flows varying from 0 to 500 kg·h^-1. At constant liquid flow, the gas flow was varied from approximately 10 to 70 kg·h^-1. The pressure drop across the non-wetted column was best described by the correlation by Rocha et al. while the pressure drop for liquid flows from 100 to 500 kg·h^-1 was, in general, best described by Stichlmair’s equation. For an irrigated column, the highest deviation was a predicted pressure drop 69.6% lower than measured. The best prediction was 0.1% higher than the measured. This study shows, surprisingly, that for a system of water and atmospheric air, complicated correlations on pressure drop determination do not provide better estimates than simple equations.

关键词: Pressure drop correlations, Packed columns, Structured packing, Fluid dynamics

Abstract: Packed columns are widely used in the chemical industry such as absorption, stripping, distillation, and extraction in the production of e.g. organic chemicals, and pharmaceuticals. Pressure loss and pressure drop correlations are of special interest when it comes to the hydrodynamic properties of a column. The pressure loss across the column is of interest in the design phase when the size of the blower to drive the gas stream through the column has to be decided. The loading point and flooding point are also influenced by the pressure loss and the area of operation is determined from these points. This work examines four different correlations on pressure drop. The correlations are (i) Ergun’s equation (1952), (ii) an improved version of Ergun’s equation by Stichlmair, Bravo, and Fair (1989), (iii) an equation developed by Billet and Schultes (1999), and (iv) an equation by Rocha, Bravo, and Fair (1993). The complexity of the correlations is increasing in the mentioned order, Ergun’s equation being the simplest one. This study investigates if the more complicated correlations give better predictions to pressure drop in packed columns. This is determined by comparing the correlations to experimental data for pressure drop in a packed column with 8.2 m of structured packing using water as the liquid and atmospheric air as the gas. Seven experiments were carried out for determining the pressure drop in the column with liquid flows varying from 0 to 500 kg·h^-1. At constant liquid flow, the gas flow was varied from approximately 10 to 70 kg·h^-1. The pressure drop across the non-wetted column was best described by the correlation by Rocha et al. while the pressure drop for liquid flows from 100 to 500 kg·h^-1 was, in general, best described by Stichlmair’s equation. For an irrigated column, the highest deviation was a predicted pressure drop 69.6% lower than measured. The best prediction was 0.1% higher than the measured. This study shows, surprisingly, that for a system of water and atmospheric air, complicated correlations on pressure drop determination do not provide better estimates than simple equations.

Key words: Pressure drop correlations, Packed columns, Structured packing, Fluid dynamics

Emil Madsen, Randi Neerup, Arne Gladis, Jens K. Jørsboe, Nicolas von Solms, Philip L. Fosbøl. Pressure drop of structured packing in pilot column and comparison to common correlations[J]. 中国化学工程学报, 2023, 64(12): 281-291.

参考文献

[1] P. Loldrup Fosbøl, R. Neerup, S. Almeida, A. Rezazadeh, J. Gaspar, A.B. Nesse Knarvik, N. Enaasen Flø, Results of the fourth Technology Centre Mongstad campaign: LVC testing, Int. J. Greenh. Gas Contr. 89 (2019) 52–64.
[2] E. Sanchez Fernandez, E.J. Bergsma, F. de Miguel Mercader, E.L.V. Goetheer, T.J.H. Vlugt, Optimisation of lean vapour compression (LVC) as an option for post-combustion CO₂ capture: Net present value maximisation, Int. J. Greenh. Gas Contr. 11 (2012) S114–S121.
[3] H.M. Kvamsdal, G. Haugen, H.F. Svendsen, A. Tobiesen, H. Mangalapally, A. Hartono, T. Mejdell, Modelling and simulation of the Esbjerg pilot plant using the Cesar 1 solvent, Energy Procedia 4 (2011) 1644–1651.
[4] Y. Le Moullec, M. Kanniche, Optimization of MEA based post combustion CO₂ capture process: Flowsheeting and energetic integration, Energy Procedia 4 (2011) 1303–1309.
[5] J.N. Knudsen, J.N. Jensen, P.J. Vilhelmsen, O. Biede, Experience with CO₂ capture from coal flue gas in pilot-scale: Testing of different amine solvents, Energy Procedia 1 (1) (2009) 783–790.
[6] A. Zakeri, A. Einbu, H.F. Svendsen, Experimental investigation of pressure drop in structured packings, Chem. Eng. Sci. 73 (2012) 285–298.
[7] E. Brunazzi, G. Nardini, A. Paglianti, An economical criterion for packed absorption column design, Chem. Biochem. Eng. Q. 16 (2002) 199–206.
[8] L. Tovazhnyanskyy, P. Kapustenko, O. Perevertaylenko, G. Khavin, O. Arsenyeva, P.Y. Arsenyev, Heat transfer and pressure drop in cross-flow welded plate heat exchanger for ammonia synthesis column, Chem. Eng. Trans. 52 (2016) 553–558.
[9] M.O. Schach, R. Schneider, H. Schramm, J.U. Repke, Techno-economic analysis of postcombustion processes for the capture of carbon dioxide from power plant flue gas, Ind. Eng. Chem. Res. 49 (5) (2010) 2363–2370.
[10] P. Gandhidasan, Prediction of pressure drop in a packed bed dehumidifier operating with liquid desiccant, Appl. Therm. Eng. 22 (10) (2002) 1117–1127.
[11] X.L. Zhao, K.H. Smith, M.A. Simioni, W. Tao, S.E. Kentish, W.Y. Fei, G.W. Stevens, Comparison of several packings for CO₂ chemical absorption in a packed column, Int. J. Greenh. Gas Contr. 5 (5) (2011) 1163–1169.
[12] L. Raynal, C. Boyer, J.P. Ballaguet, Liquid holdup and pressure drop determination in structured packing with CFD simulations, Can. J. Chem. Eng. 82 (5) (2008) 871–879.
[13] T.K. Sherwood, G.H. Shipley, F.A.L. Holloway, Flooding velocities in packed columns, Ind. Eng. Chem. 30 (7) (1938) 765–769.
[14] S. Piché, F. Larachi, B.P.A. Grandjean, Loading capacity in packing towers—Database, correlations and analysis, Chem. Eng. Technol. 24 (4) (2001) 373–380.
[15] R. Billet, M. Schultes, Prediction of mass transfer columns with dumped and arranged packings, Chem. Eng. Res. Des. 77 (6) (1999) 498–504.
[16] S. Ergun, A.A. Orning, Fluid flow through randomly packed columns and fluidized beds, Ind. Eng. Chem. 41 (6) (1949) 1179–1184.
[17] J.A. Rocha, J.L. Bravo, J.R. Fair, Distillation columns containing structured packings: A comprehensive model for their performance. 1. Hydraulic models, Ind. Eng. Chem. Res. 32 (4) (1993) 641–651.
[18] J. Stichlmair, J.L. Bravo, J.R. Fair, General model for prediction of pressure drop and capacity of countercurrent gas/liquid packed columns, Gas Sep. Purif. 3 (1) (1989) 19–28.
[19] S. Ergun, Fluid flow through packed columns, Chem. Eng. Prog. 48 (1952) 89–94.
[20] F.C. Silvey, G. J. Keller, Testing on a commercial scale, Chem. Eng. Prog. 62 (1966) 68–74.
[21] H.Z. Kister, D.R. Gill, Predict flood point and pressure drop for modern random packings, Chem. Eng. Pog. 87 (1991) 32.
[22] R. Strigle, Random Packings and Packed Towers: Design and Applications, Elsevier, Amsterdam, 1987.
[23] M.J. Dolan, R.F. Strigle, Advances in distillation column design, Chem. Eng. Prog. 23 (1980) 78–83.
[24] R. Billet, Packed column analysis and design, Ruhr-University Bochum, Department for Thermal Separation Processes, 1989.
[25] L. Spiegel, Packing efficieny and scaleup, AIChE Annual Meeting, Chicago, Illinois, 1990.
[26] J.R. Fair, Handbook of Separation Process Technology, Wiley, New York, 1987.
[27] R. Billet, Modelling of fluid dynamics in packed columns, I. Chem. E. Symp. Ser. 104 (1987) A171.
[28] J. Kunesh, Practical tips on tower packing, Chem. Eng. 94 (1987) 101–105.
[29] J. Stichlmair, Distillation, 2. Equipment, In: Ullmann’s Encyclopedia of Industrial Chemistry, Wiley‐VCH Verlag GmbH & Co, Weinheim, 2010.
[30] W. Gerharts, Ullmann’s Encyclopedia of Industrial Chemistry (5th ed.), VCH Verlagsgesellschaft, New York, 1988.
[31] A. Gladis, N.F. Lomholdt, P.L. Fosbøl, J.M. Woodley, N. von Solms, Pilot scale absorption experiments with carbonic anhydrase-enhanced MDEA- Benchmarking with 30 wt% MEA, Int. J. Greenh. Gas Contr. 82 (2019) 69–85.
[32] R. C. Reid, J. M. Prausnitz, B. E. Poling, The Properties of Gases & Liquids, 4th Edition, McGraw-Hill, Inc., New York, 1987.
[33] M.H. Li, Y.C. Lie, Densities and viscosities of solutions of monoethanolamine + N-methyldiethanolamine + water and monoethanolamine + 2-amino-2-methyl-1-propanol + water, J. Chem. Eng. Data 39 (3) (1994) 444–447.

Pressure drop of structured packing in pilot column and comparison to common correlations

Pressure drop of structured packing in pilot column and comparison to common correlations

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	Lijuan Zhao, Zhe Tan, Xiaoguang Zhang, Qijun Zhang, Wei Wang, Qiang Deng, Jie Ma, De'an Pan. Research on process modeling and simulation of spent lead paste desulfurization enhanced reactor[J]. 中国化学工程学报, 2023, 60(8): 293-303.
[2]	Chengang Yang, Huaizhi Han, Quan Zhu, Xiangyuan Li. Cracking and buoyancy effect on hydrocarbon endothermic and heat transfer characteristics in rectangular mini-channel[J]. 中国化学工程学报, 2023, 56(4): 242-254.
[3]	Shuangfei Zhao, Yingying Nie, Wenyan Zhang, Runze Hu, Lianzhu Sheng, Wei He, Ning Zhu, Yuguang Li, Dong Ji, Kai Guo. Microfluidic field strategy for enhancement and scale up of liquid–liquid homogeneous chemical processes by optimization of 3D spiral baffle structure[J]. 中国化学工程学报, 2023, 56(4): 255-265.
[4]	Qi Han, Xin-Yuan Zhang, Hai-Bo Wu, Xian-Tai Zhou, Hong-Bing Ji. Different efficiency toward the biomimetic aerobic oxidation of benzyl alcohol in microchannel and bubble column reactors: Hydrodynamic characteristics and gas–liquid mass transfer[J]. 中国化学工程学报, 2023, 55(3): 84-92.
[5]	Songsong Wang, Hong Li, Changyuan Tao, Renlong Liu, Yundong Wang, Zuohua Liu. Study on cavern evolution and performance of three mixers in agitation of yield-pseudoplastic fluids[J]. 中国化学工程学报, 2023, 55(3): 111-122.
[6]	Shuaishuai Zhou, Jing Li, Kaixiang Pang, Chunxi Lu, Feng Zhu, Congzhen Qiao, Yajie Tian, Jingwei Zhang. Computational fluid dynamics-discrete element method simulation of stirred tank reactor for graphene production[J]. 中国化学工程学报, 2023, 64(12): 196-207.
[7]	Songsong Wang, Xia Xiong, Peiqiao Liu, Qiongzhi Zhang, Qian Zhang, Changyuan Tao, Yundong Wang, Zuohua Liu. CFD simulation of hydrodynamics and mixing performance in dual shaft eccentric mixers[J]. 中国化学工程学报, 2023, 62(10): 297-309.
[8]	Yongbo Zhou, Yang Jin, Jun Li, Qinyan Wang, Ming Chen. Numerical study on the hydrodynamics behavior of a central insert microchannel[J]. 中国化学工程学报, 2023, 53(1): 361-373.
[9]	Tianpeng LiZhou, Jiajia Luo, Tiefeng Wang. Enhancement of acetylene and ethylene yields in partially decoupled oxidation of ethane by changing the composition of heat carrier[J]. 中国化学工程学报, 2022, 47(7): 71-78.
[10]	Zewen Chen, Yongjun Wu, Jian Wang, Peicheng Luo. Study on the solid–liquid suspension behavior in a tank stirred by the long-short blades impeller[J]. 中国化学工程学报, 2022, 47(7): 79-88.
[11]	Liying Chen, Junheng Guo, Wenpeng Li, Shuchun Zhao, Wei Li, Jinli Zhang. A numerical study of mixing intensification for highly viscous fluids in multistage rotor–stator mixers[J]. 中国化学工程学报, 2022, 47(7): 218-230.
[12]	Zijun Li, Shubo Wang, Sai Yao, Xueke Wang, Weiwei Li, Tong Zhu, Xiaofeng Xie. Experimental and numerical study on improvement performance by wave parallel flow field in a proton exchange membrane fuel cell[J]. 中国化学工程学报, 2022, 45(5): 90-102.
[13]	Yongjun Wu, Pan You, Peicheng Luo. Effect of pitched short blades on the flow characteristics in a stirred tank with long-short blades impeller[J]. 中国化学工程学报, 2022, 45(5): 143-152.
[14]	Ning Liu, Xingping Liu, Fumin Wang, Feng Xin, Mingshuai Sun, Yi Zhai, Xubin Zhang. CFD simulation study of the effect of baffles on the fluidized bed for hydrogenation of silicon tetrachloride[J]. 中国化学工程学报, 2022, 45(5): 219-228.
[15]	Narjes Hemati Alam, Eslam Kashi, Razieh Habibpour. Computational fluid dynamics simulation of gas dispersion in complex facilities using Kit Fox field experiments: Validation and statistical evaluation[J]. 中国化学工程学报, 2022, 44(4): 412-423.