Abstract
Gas separation by adsorption processes such as pressure swing adsorption (PSA) presents an attractive alternative for upgrading biogas to biomethane. A new vacuum pressure swing adsorption (VPSA) cycle is proposed for a unit designed to purify pre-cleaned biogas (40% CO2 and 60% CH4) in industrial conditions (feed flow rate more than 500 Nm3/h and large-volume equipment). The process simulations performed to optimize the VPSA unit consider the kinetic separation of the feed components by using an appropriate carbon molecular sieve (CMS) adsorbent having a high kinetic separation selectivity for CO2 with respect to CH4. The designed VPSA unit is composed of five columns that perform three equalization steps. Minimizing methane losses during the regeneration steps necessitates injecting part of the off-gas rich in CO2 at the bottom of the column during the production step to push the CH4 forward. The produced biomethane meets the specification (97% CH4) of grid injection purity. The developed cycle allows a CH4 recovery of 92% to be obtained with a specific energy consumption of 0.35 kWh/Nm3, thus meeting the initial requirements for industrial exploitation of VPSA technology for biomethane purification from biogas sources.
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Augelletti, R., Conti, M., Annesini, M.C.: Pressure swing adsorption for biogas upgrading. A new process configuration for the separation of biomethane and carbon dioxide. J. Clean. Prod. 140, 1390–1398 (2017). https://doi.org/10.1016/j.jclepro.2016.10.013
Canevesi, R.L.S., Andreassen, K.A., Silva, E.A., Borba, C.E., Grande, C.A.: Evaluation of simplified pressure swing adsorption cycles for bio-methane production. Adsorption. 25, 783–793 (2019). https://doi.org/10.1007/s10450-019-00049-x
Cavenati, S., Grande, C.A., Rodrigues, A.E.: Upgrade of methane from landfill gas by pressure swing adsorption. Energy Fuels. 19, 2545–2555 (2005). https://doi.org/10.1021/ef050072h
Cavenati, S., Grande, C., Rodrigues, A.: Separation of CH4/CO2/N2 mixtures by layered pressure swing adsorption for upgrade of natural gas. Chem. Eng. Sci. 61, 3893–3906 (2006). https://doi.org/10.1016/j.ces.2006.01.023
Da Silva, F.A., Silva, J.A., Rodrigues, A.E.: A general package for the simulation of cyclic adsorption processes. Adsorption. 5, 229–244 (1999). https://doi.org/10.1023/A:1008974908427
Effendy, S., Xu, C., Farooq, S.: Optimization of a pressure swing adsorption process for nitrogen rejection from natural gas. Ind. Eng. Chem. Res. 56, 5417–5431 (2017). https://doi.org/10.1021/acs.iecr.7b00513
Erden, L., Ebner, A.D., Ritter, J.A.: Separation of landfill gas CH4 from N2 using pressure vacuum swing adsorption cycles with heavy reflux. Energy Fuels. 32, 3488–3498 (2018). https://doi.org/10.1021/acs.energyfuels.7b03534
Fougerit, V., Pozzobon, V., Pareau, D., Théoleyre, M.-A., Stambouli, M.: Experimental and numerical investigation binary mixture mass transfer in a gas—liquid membrane contactor. J. Membr. Sci. 572, 1–11 (2019). https://doi.org/10.1016/j.memsci.2018.10.042
Grande, C.A., Blom, R.: Utilization of dual-PSA technology for natural gas upgrading and integrated CO2 capture. Energy Procedia. 26, 2–14 (2012). https://doi.org/10.1016/j.egypro.2012.06.004
Grande, C.A., Rodrigues, A.E.: Biogas to fuel by vacuum pressure swing Adsorption I. Behavior of equilibrium and kinetic-based adsorbents. Ind. Eng. Chem. Res. 46, 4595–4605 (2007). https://doi.org/10.1021/ie061341+
Khunpolgrang, J., Yosantea, S., Kongnoo, A., Phalakornkule, C.: Alternative PSA process cycle with combined vacuum regeneration and nitrogen purging for CH4/CO2 separation. Fuel 140, 171–177 (2015). https://doi.org/10.1016/j.fuel.2014.09.100
Knaebel, K.S.: Multi-stage adsorption system for gas mixture separation, https://patents.google.com/patent/US8211211B1/en?oq=Knaebel%2c+K.+S.+Multi-Stage+Adsorption+System+for+Gas+Mixture+Separation.+Patent+US8211211+B1%2c+2012. (2012)
Olajossy, A., Gawdzik, A., Budner, Z., Dula, J.: Methane separation from coal mine methane gas by vacuum pressure swing adsorption. Chem. Eng. Res. Des. 81, 474–482 (2003). https://doi.org/10.1205/026387603765173736
Poulleau, J.: Caractérisation des BIOGAZ Bibliographie Mesures sur sites. 82 (2002)
Qinglin, H., Farooq, S., Karimi, I.: Binary and ternary adsorption kinetics of gases in carbon molecular sieves. Langmuir (2003). https://doi.org/10.1021/la0270791
Qinglin, H., Farooq, S., Karimi, I.A.: Prediction of binary gas diffusion in carbon molecular sieves at high pressure. AIChE J. 50, 351–367 (2004). https://doi.org/10.1002/aic.10032
Radhakrishnan, K.: Description and Use of LSODE, the Livermore Solver for Ordinary Differential Equations. 124
Rasi, S.: Biogas composition and upgrading to biomethane. (2009)
Rasi, S., Veijanen, A., Rintala, J.: Trace compounds of biogas from different biogas production plants. Energy. 32, 1375–1380 (2007). https://doi.org/10.1016/j.energy.2006.10.018
Reinhold, H.E., D’Amico, J.S., Knaebel, K.S.: Natural gas enrichment process, https://patents.google.com/patent/US5536300A/en, (1996)
Rocha, L.A.M., Andreassen, K.A., Grande, C.A.: Separation of CO2/CH4 using carbon molecular sieve (CMS) at low and high pressure. Chem. Eng. Sci. 164, 148–157 (2017). https://doi.org/10.1016/j.ces.2017.01.071
Ruthven, D.M.: Principles of adsorption and adsorption processes. Wiley, Hoboken (1984)
Ruthven, D.M.: Diffusion of oxygen and nitrogen in carbon molecular sieve. Chem. Eng. Sci. 47, 4305–4308 (1992). https://doi.org/10.1016/0009-2509(92)85108-N
Ryckebosch, E., Drouillon, M., Vervaeren, H.: Techniques for transformation of biogas to biomethane. Biomass Bioenerg. 35, 1633–1645 (2011). https://doi.org/10.1016/j.biombioe.2011.02.033
Santos, M.S., Grande, C.A., Rodrigues, A.E.: New cycle configuration to enhance performance of kinetic PSA processes. Chem. Eng. Sci. 66, 1590–1599 (2011). https://doi.org/10.1016/j.ces.2010.12.032
Shafeeyan, M.S., Wan Daud, W.M.A., Shamiri, A.: A review of mathematical modeling of fixed-bed columns for carbon dioxide adsorption. Chem. Eng. Res. Design. 92, 961–988 (2014). https://doi.org/10.1016/j.cherd.2013.08.018
Sircar, S.: Pressure swing adsorption. Appl. Catal. (2002). https://doi.org/10.1021/ie0109758
Voss, C.: Applications of pressure swing adsorption technology. Adsorption. 11, 527–529 (2005). https://doi.org/10.1007/s10450-005-5979-3
Warren, K.: A techno-economic comparison of biogas upgrading technologies in Europe. (2012)
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The authors are grateful to Air Liquide for financial support.
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Chouikhi, N., Brandani, F., Pullumbi, P. et al. Biomethane production by adsorption technology: new cycle development, adsorbent selection and process optimization. Adsorption 26, 1275–1289 (2020). https://doi.org/10.1007/s10450-020-00250-3
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DOI: https://doi.org/10.1007/s10450-020-00250-3