We evaluated isotherm models for the precise prediction of adsorption equilibrium and breakthrough dynamics. Adsorption experiments were performed using pure N2, CO2 and their binary mixture with an activated carbon (AC) material as an adsorbent. Both BET and breakthrough measurements were conducted at various conditions of temperature and pressure. The corresponding uptake amount of pure component adsorption was experimentally determined, and parameters of the four different isotherm models, Langmuir, Langmuir-Freundlich, Sips, and Toth, were calculated from the experimental data. The predictive capability of each isotherm model was also evaluated with the binary experimental results of binary N2/CO2 mixtures, by means of sum of square errors (SSE). As a result, the Toth model was the most precise isotherm model in describing CO2 adsorption equilibrium on the AC. Based on the breakthrough experimental result from the binary mixture adsorption, non-isothermal modeling for the adsorption bed was performed. The breakthrough results with all of the isotherm models were examined by rigorous dynamic simulations, and the Toth model was also the most accurate model for describing the dynamics.

CO2 Adsorption Isotherm Breakthrough Activated Carbon Toth Model

U.S. Environmental Protection Agency (EPA), Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2013. U.S. EPA, 2015.
Figueroa JD, Fout T, Plasynski S, McIlyried H, Srivastava RD, Int. J. Greenhouse Gas Control, 2, 9 (2008)
Folger P, Carbon Capture: A Technology Assessment, CRS Report for Congress (2010).
Yu CH, Huang CH, Tan CS, Aerosol Air Quality Res., 12, 745 (2012)
Choi JH, Kim YE, Nam SC, Yun SH, Yoon YI, Lee JH, Korean J. Chem. Eng., 33(11), 3222 (2016)
Zhang JS, Yedlapalli P, Lee JW, Chem. Eng. Sci., 64(22), 4732 (2009)
Zhang JS, Lee JW, Ind. Eng. Chem. Res., 48(13), 5934 (2009)
Lee S, Liang L, Riestenberg D, West OR, Tsouris C, Adams E, Environ. Sci. Technol., 37, 3701 (2003)
D’Alessandro DM, Smit B, Long JR, Angew. Chem.-Int. Edit., 49, 6058 (2010)
Khalili S, Khoshandam B, Jahanshahi M, Korean J. Chem. Eng., 33(10), 2943 (2016)
Chue KT, Kim JN, Yoo YJ, Cho SH, Yang RT, Ind. Eng. Chem. Res., 34(2), 591 (1995)
Himeno S, Komatsu T, Fujita S, J. Chem. Eng. Data, 50(2), 369 (2005)
Wu YJ, Yang Y, Kong XM, Li P, Yu JG, Ribeiro AM, Rodrigues AE, J. Chem. Eng. Data, 60(9), 2684 (2015)
Cavenati S, Grande CA, Rodrigues AE, J. Chem. Eng. Data, 49(4), 1095 (2004)
Rufford TE, Watson GCY, Saleman TL, Hofman PS, Jensen NK, May EF, Ind. Eng. Chem. Res., 52(39), 14270 (2013)
Rashidi NA, Yusup S, Hameed BH, Energy, 61, 440 (2013)
Dantas TLP, Luna FMT, Silva IJ, Torres AEB, de Azevedo DCS, Rodrigues AE, Moreira RFPM, Brazilian J. Chem. Eng., 28, 533 (2011)
Gleuckauf E, Trans. Faraday Soc., 51, 1540 (1955)
Malek A, Farooq S, AIChE J., 42, 761 (1997)
Park J, Lee JW, Korean J. Chem. Eng., 33(2), 438 (2016)
Casas N, Schell J, Pini R, Mazzotti M, Adsorption, 18, 143 (2012)
Park JH, Kang RH, Lee JW, Korean J. Chem. Eng., 34(6), 1763 (2017)
Kang SH, Jeong BM, Choi HW, Ahn ES, Jang SC, Kim SH, Lee BK, Choi DK, Korean Chem. Eng. Res., 43(6), 728 (2005)
Bird RB, Stewart WE, Lightfoot EN, Transport Phenomena 2nd Ed. Wiley (2007).
Becnel JM, Holland CE, McIntyre J, Matthews MA, Ritter JA, Proceedings of the 2002 American Society for Engineering Education Annual Conference & Exposition, 2002, Session (1613).
Ho YS, Porter JF, Mckay G, Water Air Soil Pollut., 141, 1 (2002)
Lee JW, Ko YC, Jung YK, Lee KS, Yoon YS, Comput. Chem. Eng., 21, S1105 (1997)