Abstract—
A one-step notion of synthesis was developed to prepare microporous activated carbons from walnut shell by physical gas activation in a CO2 atmosphere for a low-temperature methane accumulation system operating at 120, 160, and 178 K. The raw material was carbonized within a temperature range from 240 to 950°C. Temperatures close to 900°С were found to be optimal for the development of microporosity in the adsorbent in a CO2 atmosphere. Activation under these conditions made it possible to achieve a burnoff degree up to 70% and form an optimal porous structure for adsorption accumulation of liquefied natural gas (LNG) vapors. The adsorbent thus obtained exhibits a high micropore volume W0 = 0.59 cm3/g, mesopore volume WМЕ = 0.33 cm3/g, specific surface SBET = 1490 m2/g, and half-width of micropores of 0.59 nm, which provided a high methane adsorption capacity. The presence of mesopores can make additional contribution to the adsorption process due to capillary condensation. The theoretical assessment of the methane adsorption capacity of the adsorbent showed that at temperatures of 120, 160, and 178 K and pressures up to 6 bars, the values of equilibrium adsorption were 15, 13.5, and 12 mmol/g, respectively.
Similar content being viewed by others
REFERENCES
Men’shchikov, I.E., Fomkin, A.A., Tsivadze, A.Y., Shkolin, A.V., Strizhenov, E.M., and Khozina, E.V., Adsorption, 2017, vol. 23, pp. 327–339.
Fenelonov, V.B., Poristyi uglerod (Porous Carbon), Novosibirsk: Boreskov Institute of Catalysis, Siberian Branch Russ. Acad. Sci., 1995.
Agroinvestor. https://www.agroinvestor.ru/markets/news/30896-dolya-rossii-v-mirovomsbore-orekhov-ne-prevyshaet-1/.
Jin-Wha Kim, Myoung-Hoi Sohn, Dong-Su Kim, Seung-Man Sohn, and Young-Shik Kwon, J. Hazard. Mater., 2001, vol. 85, pp. 301–315.
Wartelle, L.H. and Marshall, W.E., J. Chem. Technol. Biotechnol., 2001, vol. 76, pp. 451–455.
Lupascu, T., Dranca, I., Popa, V.T., and Vass, M., J. Therm. Anal. Calorim., 2001, vol. 63, pp. 855–863.
Gómez-Serrano, V., Cuerda-Correa, E.M., Fernández-González, M.C., Alexandre-Franco, M.F., and Macias-Garcia, A., Smart Mater. Struct., 2005, vol. 14, pp. 363–368.
Martínez, M.L., Torres, M.M., Guzmán, C.A., and Maestri, D.M., Ind. Crops Prod., 2006, vol. 23, pp. 23–28.
Kambarova, G.B. and Sarymsakov, Sh., Solid Fuel Chem., 2008, vol. 42, pp. 183–186.
González, J.F., Román, S., González-Garcia, C.M., Nabais, J.M.V., and Ortiz, A.L., Ind. Eng. Chem. Res., 2009, vol. 48, pp. 7474–7481.
Nowicki, P., Pietrzak, R., and Wachowska, H., Catal. Today, 2010, vol. 150, pp. 107–114.
Juan Yang and Keqiang Qiu, Chem. Eng. J., 2010, vol. 165, pp. 209–217.
Zabihi, M., Haghighi Asl, A., and Ahmadpour, A., J. Hazard. Mater., 2010, vol. 174, pp. 251–256.
Wookeun Bae, Jongho Kim, and Jinwook Chung, J. Air Waste Manage. Assoc., 2014, vol. 64, pp. 879–886.
Qiongfen Yu, Ming Li, Ping Ning, Honghong Yi, and Xiaolong Tang, Sep. Sci. Technol., 2014, vol. 49, pp. 2366–2375.
Men’shchikov, I.E., Fomkin, A.A., Shkolin, A.V., Yakovlev, V.Y., and Khozina, E.V., Russ. Chem. Bull., 2018, vol. 67, pp. 1814–1822.
Chugaev, S.S., Fomkin, A.A., Men’shchikov, I.E., Strizhenov, E.M., and Shkolin, A.V., Prot. Met. Phys. Chem. Surf., 2020, vol. 56, no. 5, pp. 897–903.
GOST (State Standard) no. 8050-85: Gaseous and Liquid Carbon Dioxide. Specifications, Moscow: Izd. Standartov, 1995.
Lemmon, E.W., Huber, M.L., and McLinden, M.O., NIST Standard Reference Database 23: Reference Fluid Thermodynamic and Transport Properties-REFPROP, Version 9.1., 2013.
Dubinin, M.M., Prog. Surf. Membr. Sci., 1975, vol. 9, pp. 1–70.
Brunauer, S., Emmett, P.H., and Teller, E., J. Am. Chem. Soc., 1938, vol. 60, no. 2, pp. 309–319.
Kel’tsev, N.V., Osnovy adsorbtsionnoi tekhniki (Fundamentals for Adsorptive Technique), Moscow: Khimiya, 1976.
Anuchin, K.M., Fomkin, A.A., Korotych, A.P., and Tolmachev, A.M., Prot. Met. Phys. Chem. Surf., 2014, vol. 50, pp. 173–177.
Dubinin, M.M., Carbon, 1989, vol. 27, pp. 457–467.
Kayal, S., Sun, B., and Chakraborty, A., Energy, 2015, vol. 91, pp. 772–781.
Seo-Yul Kim, Jo Hong Kang, Seung-Ik Kim, and Youn-Sang Bae, Chem. Eng. J., 2019, vol. 365, pp. 242–248.
Men’shchikov, I.E., Fomkin, A.A., Tsivadze, A.Yu., Shkolin, A.V., Strizhenov, E.M., and Pulin, A.L., Prot. Met. Phys. Chem. Surf., 2015, vol. 51, pp. 493–498.
Men’shchikov, I.E., Fomkin, A.A., Arabei, A.B., Shkolin, A.V., and Strizhenov, E.M., Prot. Met. Phys. Chem. Surf., 2016, vol. 52, pp. 575–580.
Shkolin, A.V. and Fomkin, A.A., Russ. Chem. Bull., 2009, vol. 58, pp. 717–721.
Strizhenov, E.M., Shkolin, A.V., Fomkin, A.A., Sinitsyn, V.A., Zherdev, A.A., Smirnov, I.A., and Pulin, A.L., Prot. Met. Phys. Chem. Surf., 2014, vol. 50, pp. 15–21.
Funding
The work is carried out within the framework of a state order (project no. 01201353185) and a plan of the Scientific Council of the Russian Academy of Sciences in Physical Chemistry (theme no. 20-03-460–01). Experiments were performed with the use of equipment of the Center for Collective Use of the Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated by E. Khozina
Rights and permissions
About this article
Cite this article
Men’shchikov, I.E., Fomkin, A.A., Romanov, Y.A. et al. Carbon Nanoporous Adsorbents Prepared from Walnut Shell for Liquefied Natural Gas Vapor Recovery in Cryogenic Storage Systems. Prot Met Phys Chem Surf 56, 1122–1133 (2020). https://doi.org/10.1134/S2070205120050202
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S2070205120050202