Document Type : Regular Article
Authors
Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran
Abstract
In this work, the separation of carbon monoxide (CO) from a synthesis gas (syngas) mixture was modeled. It was considered a copper-based adsorbent consisting of cuprous chloride (CuCl) on an activated carbon (AC) support (CuCl/AC) in a pressure swing adsorption (PSA) process. First, the adsorption of syngas components on the CuCl/AC adsorbent at 303.15 K was simulated to determine the required data. Next, the PSA process to separate CO from syngas using CuCl/AC absorbent at ambient temperature and pressure of 1000 kPa was evaluated by computational fluid dynamics simulation. The simulation results showed that with an adsorption bed of 2 m in height and 1 m in diameter, CO with appropriate purity (~ 99.5%) is separated from syngas by CuCl/AC. In addition, reducing the inlet feed pressure, or in other words, its velocity or flow can increase the efficiency of the operation (e.g, with a shorter bed height of 0.5 m, a CO purity of more than 99.8% can be achieved at 700 kPa, but with a significant increase in operating cost).
Keywords
- Numerical simulation
- Computational fluid dynamics modeling
- Carbon monoxide purification
- Pressure swing adsorption
- CuCl/AC adsorbent
Main Subjects
- Brandès, S., Quesneau, V., Fonquernie, O., Desbois, N., Blondeau-Patissier, V. and Gros, C. P., “Porous organic polymers based on cobalt corroles for carbon monoxide binding”,Dalton Trans., 48, 11651 (2019).
- Evans, A., Luebke, R. and Petit, C., “The use of metal–organic frameworks for CO purification”, Mater. Chem. A, 6, 10570 (2018).
- Xie, Y., Zhang, J., Qiu, J., Tong, X., Fu, J., Yang, G., Yan, H. and Tang, Y., “Zeolites modified by CuCI for separating CO from gas mixtures containing CO2”, Adsorption, 3, 27 (1997).
- Zarca, G., Ortiz, I. and Urtiaga, A., “Copper(I)-containing supported ionic liquid membranes for carbon monoxide/nitrogen separation”, Membr. Sci., 438, 38 (2013).
- Xue, C., Hao, W., Cheng, W., Ma, J. and Li, R., “Effects of pore size distribution of activated carbon (AC) on CuCl dispersion and CO adsorption for CuCl/AC adsorbent”, Eng. J., 375, 122049 (2019).
- Yin, Y., Wen, Z., Shi, L., Zhang, Z., Yang, Z., Xu, C., Sun, H., Wang, S. and Yuan, A., “Cuprous/vanadium sites on MIL-101 for selective CO adsorption from gas mixtures with superior stability”, ACS Sustain. Chem. Eng., 7, 11284 (2019).
- Tamon, H., Kitamura, K. and Okazaki, M., “Adsorption of carbon monoxide on activated carbon impregnated with metal halide”, AlChE J., 42, 422 (1996).
- Li, Y. -X., Li, S. -S., Xue, D. -M., Qin, X. –Q., Jin, M. and Sun, L. –B., “Incorporation of Cu(II) and its selective reduction to Cu(I) within confined spaces: Efficient active sites for CO adsorption”, Mater. Chem. A, 6, 8930 (2018).
- Yang, R. T., Adsorbents: Fundamentals and applications, 1st, John Wiley & Sons, Hoboken, USA, (2003).
- Gao, F., Wang, Y. and Wang, S., “Selective adsorption of CO on CuCl/Y adsorbent prepared using CuCl2 as precursor: Equilibrium and thermodynamics”, Eng. J., 290, 418 (2016).
- Gao, F., Wang, Y., Wang, X. and Wang, S., “Selective CO adsorbent CuCl/AC prepared using CuCl2 as a precursor by a facile method”, RSC Adv., 6, 34439 (2016).
- Gao, F., Wang, S., Wang, W., Duan, J., Dong, J. and Chen, G., “Adsorption separation of CO from syngas with CuCl@AC adsorbent by a VPSA process”, RSC Adv., 8, 39362 (2018).
- Awad, A. M., Jalab, R., Benamor, A., Nasser, M. S., Ba-Abbad, M. M., El-Naas, M. and Mohammad, A. W., “Adsorption of organic pollutants by nanomaterial-based adsorbents: An overview”, Mol. Liq., 301, 112335 (2020).
- Al-Ghouti, M. A. and Da'ana, D. A., “Guidelines for the use and interpretation of adsorption isotherm models: A review”, Hazard. Mater., 393, 122383 (2020).
- Ghnatios, C., Mathis, C. H., Simic, R., Spencer, N. D. and Chinesta, F., “Modeling soft, permeable matter with the proper generalized decomposition (PGD) approach, and verification by means of nanoindentation”, Soft Matter., 13, 4482 (2017).
- Gray, W. G. and O'Neill, K., “On the general equations for flow in porous media and their reduction to Darcy's Law”, Water Resour. Res., 12, 148 (1976).
- Mu, D., Liu, Z. -S., Huang, C. and Djilali, N., “Determination of the effective diffusion coefficient in porous media including Knudsen effects”, Nanofluidics, 4, 257 (2008).
- Millington, R. J. and Quir, J. P., “Permeability of porous solids, departments of agronomy and agricultural chemistry”, Waite Institute, University of Adelaide, 57, 1200 (1960).
- Zhang, L. -Z. , Conjugate heat and mass transfer in adsorbent ducts, 1st, Academic Press, (2013).
- Ebadi Amooghin, A., Lashani, M., Moftakhari Sharifzadeh, M. M. and Sanaeepur, H., “A novel analytical method for prediction of gas permeation properties in ternary mixed matrix membranes: Considering an adsorption zone around the particles”, Purif. Technol., 225, 112 (2019).
- Azari, A., Abbasi, M. A. and Sanaeepur, H., “CFD study of CO2 separation in an HFMC: Under non-wetted and partially-wetted conditions”, J. Greenh. Gas Control, 49, 81 (2016).
- Ebadi Amooghin, A., Mirrezaei, S., Sanaeepur, H. and Moftakhari Sharifzadeh, M. M., “Gas permeation modeling through a multilayer hollow fiber composite membrane”, Membr. Sci. Res., 6, 125 (2020).
- Zhu, L. -Q., Tu, J. -L. and Shi, Y. -J., “Separation of CO-CO,-N, gas mixture for high-purity CO by pressure swing adsorption”, Sep. Purif., 5, 173 (1991).
- Belmabkhout, Y., De Weireld, G. and Fre`re, M., “High-pressure adsorption isotherms of N2, CH4, O2, and Ar on different carbonaceous adsorbents”, Chem. Eng, 49, 1379 (2004).
', './data/ijche/coversheet/cover_en.jpg'))