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Received September 25, 2017
Accepted March 8, 2018
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A Study of Upgrading Real Biogas via CO2 Precipitation Route Under Indian Scenario
Department of Chemical Engineering, Motilal Nehru National Institute of Technology, Allahabad-211004, Uttar Pradesh, India 1Department of Chemical and Biomolecular Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
ankur@mnnit.ac.in
Korean Chemical Engineering Research, June 2018, 56(3), 381-387(7), 10.9713/kcer.2018.56.3.381 Epub 4 June 2018
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Abstract
Our study focuses on upgrading real biogas obtained under Indian scenario using carbon capture and utilization (CCU) technology to remove carbon dioxide (CO2) and utilize it by forming metal carbonate. Amines such as monoethanolamine (MEA), diethanolamine (DEA), and sodium hydroxide (NaOH) were used to rapidly convert gaseous CO2 to aqueous CO2, and BaCl2 was used as an additive to react with the aqueous CO2 and rapidly precipitating the aqueous CO2. All experiments were conducted at 25°C and 1 atm. We analyzed the characteristics of the BaCO3 precipitates using X-ray diffractometry (XRD), scanning electron microscopy - Energy dispersive spectroscopy (SEM-EDS) and Fourier-transform infrared spectroscopy (FT-IR) analyses. The precipitates exhibited witherite morphology confirmed by the XRD results, and FT-IR confirmed that the metal salt formed was BaCO3, and EDS showed that there were no traces of impurities present in it. The quantity of the BaCO3 was larger when formed with DEA. Also, a comparison was done with a previous study of ours conducted in Korean conditions. Finally, we observed that the carbonate obtained using real biogas showed similar properties to carbonates available in the market. An economic analysis was done to show the cost effectiveness of the method employed by us.
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Gaur A, Park JW, Jang JH, Fuel Process. Technol., 91(11), 1500 (2010)
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Gaur A, Park JW, Jang JW, Maken S, Lee J, Song HS, Energy Fuels, 23, 5467 (2009)
Park S, Min J, Lee MG, Jo H, Park J, Chem. Eng. J., 231, 287 (2013)
Sanna A, Uibu M, Caramanna G, Kuusik R, Valer MMV, Chem. Soc. Rev., 43, 8049 (2014)
Arenas C, Ricaurte L, Figueredo M, Cobo M, Chem. Eng. J., 254, 220 (2014)
Cao X, Hong T, Yang R, Tian J, Xia RC, Dong CJ, Li J, J. Phys. Chem. C, 120, 22895 (2016)
Song HJ, Park S, Kim H, Gaur A, Park JW, Lee SW, Int. J. Greenhouse Gas Control, 11, 64 (2012)
Santos SP, Duarte AP, Bordado JC, Gomes JF, Ciencia Tecnol. Dos Mater., 28, 106 (2016)
Gomes S, Santos SP, Bordado JC, Environ. Technol., 36, 19 (2015)
Kim JH, Kwak NS, Lee IY, Jang KR, Sim JG, Korean Chem. Eng. Res., 55(3), 419 (2017)
You JK, Park HS, Hong WH, Park J, Kim JN, Korean Chem. Eng. Res., 45(3), 258 (2007)
Kumar S, Cho JH, Moon I, Int. J. Greenhouse Gas Control, 20, 87 (2014)
