Simulation of flow field in vertical radial flow adsorber with parallel connection device

doi:10.11949/j.issn.0438-1157.20150192

CIESC Journal ›› 2015, Vol. 66 ›› Issue (11): 4485-4492.DOI: 10.11949/j.issn.0438-1157.20150192

Previous Articles Next Articles

Simulation of flow field in vertical radial flow adsorber with parallel connection device

RUI Daozhe, ZHANG Xuejun, CHEN Yao, QIU Limin, ZHANG Xiaobin

Institute of Refrigeration and Cryogenics, Zhejiang University, Key Laboratory of Refrigeration and Cryogenic Technology of Zhejiang Province, Hangzhou 310027, Zhejiang, China

Received:2015-02-05 Revised:2015-07-04 Online:2015-11-05 Published:2015-11-05
Supported by:
supported by Major State Basic Research Development Program of China (2011CB706501), National Natural Science Foundation of China (51176164) and Zhejiang Provincial Natural Science Foundation (Y15E060014).

立式分层并联径向流吸附器流场数值模拟

芮道哲, 张学军, 陈瑶, 邱利民, 张小斌

浙江大学制冷与低温研究所, 浙江省制冷与低温技术重点实验室, 浙江杭州 310027

通讯作者: 张学军
基金资助:
国家重点基础研究发展计划项目子课题(2011CB706501);国家自然科学基金项目(51176164);浙江省自然科学基金项目(Y15E060014)。

Abstract

Abstract:

In order to reduce the non-uniformity of the flow distribution caused by excessively high bed, a new parallel connection device is presented. A mathematical model for a parallel connection vertical radial flow adsorber is established to simulate the flow field in the adsorption bed, and the characteristics of pressure drop and radial velocity profiles are obtained. This flow distribution is compared with that with height-increasing method with the same bed height. It is shown that the non-uniformity of radial static pressure drop and the energy passing through the bed are reduced significantly by using the parallel connection device. The revamped adsorber can maintain a high level of uniformity in the adsorption bed and avoid the influence of excessive height. The adsorption bed thickness of the upper unit is optimized to ensure the two units to be saturated simultaneously.

Key words: porous media, adsorption, parallel connection, model, flow distribution, large-scale

摘要：

为降低径向流吸附器高度对均布的影响,提出了径向流吸附器的分层并联设计方法,并建立了径向流分层并联吸附器的数值计算模型。应用计算流体力学方法对分层并联式径向流吸附器中流体在床层内的流场进行了数值模拟计算,并在相同条件下与增高改进后的径向流吸附器的流场分布进行对比。结果表明,分层并联设计方法的均匀度相比于增高方法的均匀度提高了80%,有效清除了径向流吸附器过高对床层内流体均布的负面影响,且对分层并联径向流吸附器上部单元床层厚度进一步优化,达到了上下单元同时穿透的目的。

关键词: 多孔介质, 吸附, 分层并联, 模型, 流体均布, 大流量

CLC Number:

TQ116

RUI Daozhe, ZHANG Xuejun, CHEN Yao, QIU Limin, ZHANG Xiaobin. Simulation of flow field in vertical radial flow adsorber with parallel connection device[J]. CIESC Journal, 2015, 66(11): 4485-4492.

芮道哲, 张学军, 陈瑶, 邱利民, 张小斌. 立式分层并联径向流吸附器流场数值模拟[J]. 化工学报, 2015, 66(11): 4485-4492.

References 21

[1]	Zhang Xiaobin, Chen Jianye, Yao Lei, Huang Yonghua, Zhang Xuejun, Qiu Limin. Research and development of large-scale cryogenic air separation in China [J]. Journal of Zhejiang University-Science A (Applied Physics & Engineering), 2014, 15(5): 309-332.
[2]	Frank G K. Industrial Gas Handbook [M]. Florida: CRC Press, 2006: 534.
[3]	Li Huazhi (李化治). Technology of Oxygen Production (制氧技术) [M]. 2nd ed. Beijing: Metallurgical Industry Press, 2009: 400.
[4]	Wang Haoyu (王浩宇), Liu Yingshu (刘应书), Yang Xiong (杨雄). Progress in air pre-purification technology [J]. Chemical Industry and Engineering Progress (化工进展), 2014, 33(3): 542-549.
[5]	Lu Junliang (陆军亮), Zhang Xuejun (张学军), Qiu Limin (邱利民), Wang Xiaolei (王晓蕾). Theoretical analysis of uniform flow distribution in vertical radial adsorption bed [J]. CIESC Journal (化工学报), 2012, 63(S2): 21-25.
[6]	Chen Yao (陈瑶), Zhang Xuejun (张学军), Lu Junliang (陆军亮), Qiu Limin (邱利民), Zhang Xiaobin (张小斌), Sun Daming (孙大明), Gan Zhihua (甘智华). Flow characteristics of radial flow adsorber and its structure parameters optimization [J]. CIESC Journal (化工学报), 2014, 65(9): 395-3402.
[7]	Zhang Chengfang (张成芳), Zhu Zibin (朱子彬), Xu Maosheng (徐懋生), Zhu Bingchen (朱炳辰). An investigation of design on the uniform fluid distribution for radial flow reactors [J]. Journal of Chemical Industry and Engineering (China) (化工学报), 1979, 28(1): 67-90.
[8]	Chang H C, Saucier M, Calo J M. Design criterion for radial flow fixed-bed reactors [J]. AIChE Journal, 1983, 29(6): 1039-1041.
[9]	Li Ruijiang (李瑞江), Chen Chunyan (陈春燕), Wu Yongqiang (吴勇强), Zhu Zibin (朱子彬). Parameters for uniform distribution of stream in large-scale radial flow reactors [J]. Chemical Engineering (China) (化学工程), 2009, 37(10): 28-31.
[10]	Kareeri A A, Zughbi H D, Al-Ali H H. Simulation of flow distribution in radial flow reactors [J]. Ind. Eng. Chem. Res., 2006, 45: 2862- 2874.
[11]	Grenier M, Petit P. Cryogenic air separation: the last twenty years// Advances in Cryogenic Engineering [M]. US: Springer, 1986: 1063-1070.
[12]	Tentarelli S C. Radial flow adsorption vessel [P]: US, 5814129. 1998-9-29.
[13]	Celic C E, Smolarek J. Radial bed flow distributor for radial bed pressure adsorber vessel [P]: US, 0252378 Al. 2005-11-17.
[14]	Lu Mingzhang (卢明章), Wu Qiaoxian (吴巧仙). The test and prospect of the vertical radial flow adsorber [J]. Cryogenic Technology (深冷技术), 1992, (2): 15-21.
[15]	Zheng Xingang, Liu Yingshu, Liu Wenhai. Two-dimensional modeling of the transport phenomena in the adsorber during pressure swing adsorption process [J]. Industrial & Engineering Chemistry Research, 2010, 49(22): 11814-11824.
[16]	Zheng Xingang (郑新港), Liu Yingshu (刘应书), Li Yongling (李永玲), Zhang Hui (张辉), Liu Wenhai (刘文海). Velocity distribution in axial adsorber with consideration of mass variation [J]. Journal of University of Science and Technology Beijing (北京科技大学学报), 2011, 33(11): 1412-1418.
[17]	Sun Dexing (孙德兴). The applicable range, defect and correction of equivalent diameter used hydraulic diameter [J]. Journal of Engineering Thermophysics (工程热物理学报), 1987, 8(4): 357-362.
[18]	Lu Junliang (陆军亮). Investigation on the mechanism of fluid flow in the radial flow adsorber [D]. Hangzhou: Zhejiang University, 2014.
[19]	Wang Jinfu (王金福), Wang Zhanwen (汪展文), Jin Yong (金涌), Yu Zhiqing (俞芷青). Simulation of the gas distribution system for a radial flow moving-bed catalytic reforming reactor in change state flow [J]. Petrochemical Technology (石油化工), 1997, 26(9): 98-605.
[20]	Mu Zuze, Wang Jinfu, Wang Tiefeng, Jin Yong. Optimum design of radial flow moving-bed reactors based on a mathematical hydrodynamic model [J]. Chemical Engineering and Processing: Process Intensification, 2003, 42(5): 409-417.
[21]	Petrova T, Darakchiev R, Semkov K, Darakchiev S. Estimations of gas flow maldistribution in packed-bed columns [J]. Chem. Eng. Technol., 2008, 31(12): 1723-1729.

Simulation of flow field in vertical radial flow adsorber with parallel connection device

立式分层并联径向流吸附器流场数值模拟

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

References 21

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	Jiahao SONG, Wen WANG. Study on coupling operation characteristics of Stirling engine and high temperature heat pipe [J]. CIESC Journal, 2023, 74(S1): 287-294.
[2]	Mengya LIAN, Yingying TAN, Lin WANG, Feng CHEN, Yifei CAO. Heating performance of air preheated integrated ground water heat pump air-conditioning system [J]. CIESC Journal, 2023, 74(S1): 311-319.
[3]	Zhenghao JIN, Lijie FENG, Shuhong LI. Energy and exergy analysis of a solution cross-type absorption-resorption heat pump using NH₃/H₂O as working fluid [J]. CIESC Journal, 2023, 74(S1): 53-63.
[4]	Hao WANG, Zhenlei WANG. Model simplification strategy of cracking furnace coking based on adaptive spectroscopy method [J]. CIESC Journal, 2023, 74(9): 3855-3864.
[5]	Ke LI, Jian WEN, Biping XIN. Study on influence mechanism of vacuum multi-layer insulation coupled with vapor-cooled shield on self-pressurization process of liquid hydrogen storage tank [J]. CIESC Journal, 2023, 74(9): 3786-3796.
[6]	Xudong YU, Qi LI, Niancu CHEN, Li DU, Siying REN, Ying ZENG. Phase equilibria and calculation of aqueous ternary system KCl + CaCl₂ + H₂O at 298.2, 323.2, and 348.2 K [J]. CIESC Journal, 2023, 74(8): 3256-3265.
[7]	Yan GAO, Peng WU, Chao SHANG, Zejun HU, Xiaodong CHEN. Preparation of magnetic agarose microspheres based on a two-fluid nozzle and their protein adsorption properties [J]. CIESC Journal, 2023, 74(8): 3457-3471.
[8]	Chengying ZHU, Zhenlei WANG. Operation optimization of ethylene cracking furnace based on improved deep reinforcement learning algorithm [J]. CIESC Journal, 2023, 74(8): 3429-3437.
[9]	Linqi YAN, Zhenlei WANG. Multi-step predictive soft sensor modeling based on STA-BiLSTM-LightGBM combined model [J]. CIESC Journal, 2023, 74(8): 3407-3418.
[10]	Guoze CHEN, Dong WEI, Qian GUO, Zhiping XIANG. Optimal power point optimization method for aluminum-air batteries under load tracking condition [J]. CIESC Journal, 2023, 74(8): 3533-3542.
[11]	Jintong LI, Shun QIU, Wenshou SUN. Oxalic acid and UV enhanced arsenic leaching from coal in flue gas desulfurization by coal slurry [J]. CIESC Journal, 2023, 74(8): 3522-3532.
[12]	Bingchun SHENG, Jianguo YU, Sen LIN. Study on lithium resource separation from underground brine with high concentration of sodium by aluminum-based lithium adsorbent [J]. CIESC Journal, 2023, 74(8): 3375-3385.
[13]	Ruihang ZHANG, Pan CAO, Feng YANG, Kun LI, Peng XIAO, Chun DENG, Bei LIU, Changyu SUN, Guangjin CHEN. Analysis of key parameters affecting product purity of natural gas ethane recovery process via ZIF-8 nanofluid [J]. CIESC Journal, 2023, 74(8): 3386-3393.
[14]	Chunyu LIU, Huanyu ZHOU, Yue MA, Changtao YUE. Drying characteristics and mathematical model of CaO-conditioned oil sludge [J]. CIESC Journal, 2023, 74(7): 3018-3027.
[15]	Jie WANG, Xiaolin QIU, Ye ZHAO, Xinyang LIU, Zhongqiang HAN, Yong XU, Wenhan JIANG. Preparation and properties of polyelectrolyte electrostatic deposition modified PHBV antioxidant films [J]. CIESC Journal, 2023, 74(7): 3068-3078.