• Chinese Core Periodicals
  • Chinese Core Journals of Science and Technology
  • RCCSE Chinese Core Academic Journals
  • Netherlands Abstracts and Citations Database(Scopus)
  • Directory of Open Access Journals(DOAJ)
  • Chemical abstracts(CA)
  • Abstract Journal(РЖ,AJ)
  • Japan Science and Technology Agency(JST)
Advance Search
XIAO Lu. Exergy Analysis of Air Separation with Pressure Swing Adsorption[J]. Mining Safety & Environmental Protection, 2018, 45(5): 99-104.
Citation: XIAO Lu. Exergy Analysis of Air Separation with Pressure Swing Adsorption[J]. Mining Safety & Environmental Protection, 2018, 45(5): 99-104.

Exergy Analysis of Air Separation with Pressure Swing Adsorption

More Information
  • Received Date: August 29, 2017
  • Revised Date: January 17, 2018
  • Available Online: September 16, 2022
  • Based on energy saving of pressure swing adsorption (PSA) device,a strict mathematical model was established by using the theory of engineering thermodynamics and adsorption thermodynamics.Through exergy analysis of air separation system with a small twin towers and PSA,It was concluded the influence law of adsorption pressure and back pressure on the exergy efficiency of PSA device.Through calculation,it is found that increasing back pressure or reduce adsorption pressure properly can improve the exergy efficiency;exergy loss occurs mainly in three processes,namely cooling process after the compressor,adsorption process inside the column,and exhaust gas valve losses in the blowdown step,the proportion of total energy input is 20.32%,33.57% and 19.10% respectively.In contrast,exergy losses less in the process of pressure release inside the column,pressure equalization,blowback and decompression in the valve used in pressure equalization.Referring to the research achievements,from the point of improving exergy efficiency,in the premise of ensuring product purity,recovery rate and adsorption capacity of molecular sieve,designers should reduce the adsorption pressure and increase the blowback pressure,so as to design more energy-saving PSA device.
  • [1]
    王长元,张武,陈久福,等.煤矿区低浓度煤层气含氧液化工艺技术研究[J].矿业安全与环保,2011,38(4):1-3.
    [2]
    郝宇,徐龙君,肖露,等.低浓度煤层气深冷液化装置研制及安全性分析[J].煤气与热力,2017,37(2):9-14.
    [3]
    肖露,张玉文,吕阳,等.变压吸附制氧过程数值模拟与分析[J].低温工程,2009(3):55-59.
    [4]
    CRUZ P,SANTOS J C,MAGALHAES F D,et al.Cyclic adsorption separation processes:analysis strategy and optimization procedure [J].Chemical Engineering Science,2003,58:3143-3158.
    [5]
    华自强,张忠进.工程热力学[M].北京:高等教育出版社,2003.
    [6]
    DAVID T,KEARNS,PAUL A,et al.Application of an adsorption non-flow exergy function to an exergy analysis of a pressure swing adsorption cycle [J].Chemical Engineering Science,2004,59:3537-3557.
    [7]
    MEUINER F,KAUSHIK S C,NEVEU P,et al.A comparative thermodynamic study of sorption systems:second law analysis [J].International Journal of Refrigeration,1996,19(6):414-421.
    [8]
    PONS M.Second law analysis of adsorption cycles with thermal regeneration [J].Journal of Energy Resources Technology,1996,118:229-236.
    [9]
    BANERJEE R,NARAYANHEDKAR K G,SUKHATME S P.Exergy analysis of kinetic pressure swing adsorption processes:comparison of different cycle con1gurations[J].Chemical Engineering Science,1992,47(5):1307-1311.
    [10]
    叶振华.化工吸附分离过程[M].北京:中国石化出版社,1992.
    [11]
    肖露,张玉文,吕阳,等.多孔介质变压吸附过程仿真计算[J].流体机械,2009(10):69-73.
    [12]
    KNAEBEL K S,HILL F B.Pressure swing adsorption:development of an equilibrium theory for gas separations[J]. Chemical Engineering Science,1985,40(12):2351-2360.
    [13]
    凌永祥,陈明逵.计算方法教程[M].2版.西安:西安交通大学出版社,2007.
    [14]
    陈光明,陈国邦.制冷与低温原理[M].北京:机械工业出版社,2000.
    [15]
    STRAUSS W A.Partial Differential Equations:an Introduction[M].Nwe York:Wiley,1992.
  • Related Articles

    [1]ZHOU Xueyu, GUO Liangliang, ZHANG Yongbo. Constraction of coal gangue artificial thermal storage and analysis of spontaneous combustion thermal energy potential[J]. Mining Safety & Environmental Protection, 2023, 50(3): 129-135. DOI: 10.19835/j.issn.1008-4495.2023.03.022
    [2]YANG Hua, QI Shikang, TIAN Liang, LIU Xuanchen, XIE Jun, QI Na. Numerical simulation of influencing factors of spray dust removal efficiency based on Euler-Lagrangian method[J]. Mining Safety & Environmental Protection, 2023, 50(1): 42-46. DOI: 10.19835/j.issn.1008-4495.2023.01.007
    [3]ZHANG Tao. Analysis and discussion on thermal energy control equipment of gas storage and oxidation process[J]. Mining Safety & Environmental Protection, 2020, 47(6): 118-121. DOI: 10.19835/j.issn.1008-4495.2020.06.023
    [4]DONG Zhanyuan, WU Biao. Test and Analysis on the Effect of Elbow Guide Vanes on Diffusion Efficiency of Main Fan Vertical Diffuser[J]. Mining Safety & Environmental Protection, 2019, 46(6): 98-101.
    [5]SUN Jiaping, ZHAN Fengcheng. Analysis of Coal Wall Stability and Slip Depth based on Minimum Potential Energy Method[J]. Mining Safety & Environmental Protection, 2019, 46(5): 99-103.
    [6]HUANG Xin, YAO Weijing. Design and Analysis of Energy-saving Pneumatic Low-temperature Magnetizd Water Dedusting System[J]. Mining Safety & Environmental Protection, 2019, 46(1): 78-81,86.
    [7]XIONG Pan, YAN Shuguang, CHEN Xiyang, WU Lang, KONG Can, NING Jiangfeng. The Erosion Crack's Influence on the Efficiency of Separation of Cyclone Separator[J]. Mining Safety & Environmental Protection, 2018, 45(2): 36-39,48.
    [8]LIU Yao, WANG Delu. Evaluation of Ecological Efficiency and Promotion Potential ofIndustrial Ecosystem in Coal City[J]. Mining Safety & Environmental Protection, 2017, 44(4): 99-105.
    [9]XIAO Lu, GAN Hailong. Discussion on Exhaust Gas Utilization of PSA Nitrogen Making Machine in Cryogenic Liquefaction Device of low-concentration Coal-bed Methane[J]. Mining Safety & Environmental Protection, 2017, 44(2): 107-110.
    [10]CHEN Jinhua. Application Research of Low-concentration Gas Regenerative Oxidation and Heating System[J]. Mining Safety & Environmental Protection, 2017, 44(2): 62-65.
  • Cited by

    Periodical cited type(2)

    1. 肖露. 低浓度煤层气吸附干燥装置布气系统数值模拟研究. 矿业安全与环保. 2021(06): 25-29 . 本站查看
    2. 程兆光,武道吉,马义源,刘丽荣. 吸附器阀门内部泄漏对VPSA能耗的影响研究. 环境与发展. 2020(08): 235-236 .

    Other cited types(1)

Catalog

    Article views (43) PDF downloads (9) Cited by(3)

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return