Investigation of carbon dioxide capture from hydrogen using the thermal pressure swing adsorption process: Central composite design modeling

Document Type: Research Paper


Department of Chemistry and Chemical Engineering, Malek Ashtar University of Technology


In this study pre-combustion capture of carbon dioxide from hydrogen was performed using a 5A zeolite adsorber. A one column thermal pressure swing adsorption (TPSA) process was studied in the bulk separation of a CO2/H2 mixture (50:50 vol%). The adsorption dynamics of the zeolite bed were investigated by breakthrough experiments to select the suitable range for operational factors in the design of experiments. Combined effect of three important variables namely, adsorption time, purge to feed ratio, and regeneration temperature on hydrogen purity, recovery and productivity were investigated in the TPSA process using Response Surface Methodology (RSM). Predicted models show an interaction between adsorption time and regeneration temperature in the range that the experiments were performed. Optimization of the TPSA process was performed based on the goal of responses. As hydrogen purity has the large impact with respect to hydrogen recovery and productivity in industry, the optimum condition was proposed based on maximum purity of hydrogen. In this condition, predicted values for adsorption time, purge to feed ratio, and regeneration temperature were 7.99 min, 0.2, and 204 °C, respectively. Predicted values of responses for hydrogen purity, recovery, and productivity were 99.88%, 50.71%, and 1.32, respectively. Acquired models were validated by experimental data in predicted conditions and actual responses were very close to predicted values. These results confirmed the accuracy of obtained models.


Main Subjects


[1] Song C. “Global challenges and strategies for control, conversion and utilization of CO2 for sustainable development involving energy, catalysis, adsorption and chemical processing”. Catal. Today. 2006, 115:2.


[2] Metz B., Davidson O., Coninck H., Loos M., Meyer L., “Carbon dioxide capture and storage, International Panel on Climate Control (IPCC)”. Cambridge University Press Cambridge; 2005.


[3] Di Sarli V., Di Benedetto A., “Laminar burning velocity of hydrogen–methane/air premixed flames”. Int. J. Hydrogen Energy. 2007, 32: 637.


[4] El-Ghafour S., El-Dein A., Aref A., “Combustion characteristics of natural gas–hydrogen hybrid fuel turbulent diffusion flame”. Int. J. Hydrogen Energy, 2010, 35: 2556.


[5] Ruthven D.M., “Principles of adsorption and adsorption processes”. John Wiley & Sons, 1984.


[6] Sircar S., Waldron W., Rao M, Anand M., “Hydrogen production by hybrid SMR–PSA–SSF membrane system”. Sep. Purif. Technol. 1999, 17: 11.


[7] Bastos-Neto M., Moeller A., Staudt R., Böhm J., Gläser R., “Dynamic bed measurements of CO adsorption on microporous adsorbents at high pressures for hydrogen purification processes”. Sep. Purif. Technol. 2011, 77:251.


[8] Manovic V., Anthony EJ., “Lime-based sorbents for high-temperature CO2 capture—a review of sorbent modification methods”. Int. j. Environ. Res. and public health. 2010, 7: 3129.


[9] Hart A., Gnanendran N., “Cryogenic CO2 capture in natural gas”. Energy Procedia. 2009, 1:697.


[10] Hauchhum L., Mahanta P., “Carbon dioxide adsorption on zeolites and activated carbon by pressure swing adsorption in a fixed bed”. Int. J. Energy Enviro. 2014, 5:349.


[11] Tlili N., Grévillot G., Vallières C., “Carbon dioxide capture and recovery by means of TSA and/or VSA”. Int. J. Greenhouse Gas Control. 2009, 3:519.


[12] Siriwardane R.V., Shen M.S., Fisher E.P., Losch J., “Adsorption of CO2  on zeolites at moderate temperatures”. Energy & Fuels. 2005, 19:1153.


[13] Siriwardane R.V., Shen M.S., Fisher E.P., Poston J.A., “Adsorption of CO2 on molecular sieves and activated carbon”. Energy & Fuels. 2001, 15:279.


[14] García S., Gil M., Pis J., Rubiera F., Pevida C., “Cyclic operation of a fixed-bed pressure and temperature swing process for CO2 capture: experimental and statistical analysis”. Int. J. Greenhouse Gas Control. 2013, 12:35.


[15] Frey D.D., Engelhardt F., Greitzer E.M., “A role for” one-factor-at-a-time” experimentation in parameter design”. Res. Eng. Des. 2003, 14:65.


[16] Dutta S., Bhattacharyya A., Ganguly A., Gupta S., Basu S., “Application of response surface methodology for preparation of low-cost adsorbent from citrus fruit peel and for removal of methylene blue”. Desalination. 2011, 275:26.


[17] Shafeeyan M.S., Daud WMAW., Houshmand A., Arami-Niya A., “The application of response surface methodology to optimize the amination of activated carbon for the preparation of carbon dioxide adsorbents”. Fuel. 2012, 94:465.


[18] García S., Gil M, Martín C., Pis J., Rubiera F., Pevida C., “Breakthrough adsorption study of a commercial activated carbon for pre-combustion CO2  capture”. Chemical Engineering Journal. 2011, 171:549.


[19] Serna-Guerrero R, Belmabkhout Y, Sayari A. “Modeling CO2 adsorption on amine-functionalized mesoporous silica: 1. A semi-empirical equilibrium model”. Chemical Engineering Journal. 2010, 161:173.


[20] Mulgundmath V., Tezel FH., “Optimisation of carbon dioxide recovery from flue gas in a TPSA system”. Adsorption. 2010, 16:587.


[21] Box GE., Wilson K., “On the experimental attainment of optimum conditions”. Journal of the Royal Statistical Society Series B (Methodological). 1951, 13:1.


[22] Whitcomb P.J., Anderson M.J., “RSM simplified: optimizing processes using response surface methods for design of experiments”, CRC press, 2004.


[23] Myers R.H., Montgomery D.C., Anderson-Cook CM., “Response surface methodology: process and product optimization using designed experiments”, John Wiley & Sons, 2016.


[24] Anderson MJ., Whitcomb PJ., “Design of experiments”, Wiley Online Library, 2000.


[25] Moon D-K., Kim Y-H., Ahn H., Lee C-H., “Pressure Swing Adsorption Process for Recovering H2 from the Effluent Gas of a Melting Incinerator”. Ind Eng Chem Res. 2014, 53:15447.


[26] Montgomery D.C., “Design and analysis of experiments”, John Wiley & Sons, 2008.