H2 purification by pressure swing adsorption using CuBTC

Nowadays, the production of hydrogen has received increased attention due to its important industrial applications and to its promising potential as an alternative energy source. The use of hydrogen in fuel cell applications requires a high purity. In this work, hydrogen purification from mixtures that also contain CO2, CO, CH4, and N2 was performed by Pressure Swing Adsorption (PSA) with CuBTC as adsorbent (supplied by KRICT). The equilibrium adsorption of each pure gas was measured and fixed-bed adsorption experiments were carried out. The same column, employed for the fixed-bed breakthrough curves, was used to carry out experiments of a 4-step PSA cycle. A mathematical model of multicomponent adsorption in fixed bed was developed. This model was validated against the results obtained in breakthrough experiments and PSA tests, presenting a good prediction of the experimental data. Therefore, this model can be used as a base for the design of optimized PSA cycles.

[1]  K. S. Knaebel,et al.  Pressure swing adsorption , 1993 .

[2]  N. Wakao,et al.  EFFECT OF FLUID DISPERSION COEFFICIENTS ON PARTICLE-TO-FLUID MASS TRANSFER COEFFICIENTS IN PACKED BEDS. CORRELATION OF SHERWOOD NUMBERS , 1978 .

[3]  R. Serna-Guerrero,et al.  Adsorption of CO2 from dry gases on MCM-41 silica at ambient temperature and high pressure. 1: Pure CO2 adsorption , 2009 .

[4]  B. Mandal,et al.  Adsorption of CO2, CO, CH4 and N2 on DABCO based metal organic frameworks , 2013 .

[5]  N. Wakao,et al.  Effect of fluid dispersion coefficients on particle-to-fluid heat transfer coefficients in packed beds , 1978 .

[6]  Soon-Haeng Cho,et al.  Performance analysis of four‐bed H2 PSA process using layered beds , 2000 .

[7]  Qinglin Huang,et al.  Optimization of PSA process for producing enriched hydrogen from plasma reactor gas , 2008 .

[8]  R. T. Yang,et al.  Gas Separation by Adsorption Processes , 1987 .

[9]  Phillip C. Wankat,et al.  Intensification of pressure swing adsorption processes , 1990 .

[10]  A. Rodrigues,et al.  Molecular simulation of propane/propylene separation on the metal-organic framework CuBTC , 2010 .

[11]  Alírio E. Rodrigues,et al.  Four beds pressure swing adsorption for hydrogen purification: Case of humid feed and activated carbon beds , 2009 .

[12]  Chang-Ha Lee,et al.  Adsorption dynamics of a layered bed PSA for H2 recovery from coke oven gas , 1998 .

[13]  A. Kirubakaran,et al.  A review on fuel cell technologies and power electronic interface , 2009 .

[14]  C. Serre,et al.  Why hybrid porous solids capture greenhouse gases? , 2011, Chemical Society reviews.

[15]  Alírio E. Rodrigues,et al.  Sorption and kinetics of CO2 and CH4 in binderless beads of 13X zeolite , 2012 .

[16]  Isothermal and Isobaric Desorption of Carbon Dioxide by Purge , 1995 .

[17]  D. Moon,et al.  H2 PSA purifier for CO removal from hydrogen mixtures , 2012 .

[18]  Aarti,et al.  CO2 recovery from mixtures with nitrogen in a vacuum swing adsorber using metal organic framework adsorbent: A comparative study , 2012 .

[19]  W. You,et al.  Heat capacities and thermodynamic properties of a novel mixed-ligands MOFs , 2010 .

[20]  Krista S. Walton,et al.  Adsorption study of CO2, CH4, N2, and H2O on an interwoven copper carboxylate metal-organic framework (MOF-14). , 2013, Journal of colloid and interface science.

[21]  J. Armor,et al.  The multiple roles for catalysis in the production of H2 , 1999 .

[22]  Alírio E. Rodrigues,et al.  Activated carbon for hydrogen purification by pressure swing adsorption: Multicomponent breakthrough curves and PSA performance , 2011 .

[23]  Qing Min Wang,et al.  Metallo-organic molecular sieve for gas separation and purification , 2002 .

[24]  Alírio E. Rodrigues,et al.  A parametric study of layered bed PSA for hydrogen purification , 2008 .

[25]  R. Siriwardane,et al.  Adsorption of CO2 on Zeolites at Moderate Temperatures , 2005 .

[26]  M. Rao,et al.  Hydrogen production by hybrid SMR–PSA–SSF membrane system , 1999 .

[27]  Alexandre F. P. Ferreira,et al.  Suitability of Cu-BTC extrudates for propane–propylene separation by adsorption processes , 2011 .

[28]  S. Mekala,et al.  Adsorption of CO, CO2 and CH4 on Cu-BTC and MIL-101 metal organic frameworks: Effect of open metal sites and adsorbate polarity , 2012 .

[29]  A. Rodrigues,et al.  Propylene/propane separation by vacuum swing adsorption using Cu-BTC spheres , 2012 .

[30]  J. Lercher,et al.  Metal organic frameworks based on Cu2+ and benzene-1,3,5-tricarboxylate as host for SO2 trapping agents , 2005 .

[31]  Alírio E. Rodrigues,et al.  Adsorption of Off‐Gases from Steam Methane Reforming (H2, CO2, CH4, CO and N2) on Activated Carbon , 2008 .