Abstract
Zeolite A and A + X mixtures were prepared from coal-fly ash procured from China by using an alkali fusion method. X-ray diffraction showed that both the materials were crystalline and reproducible. Scanning Microscopy revealed that pure zeolite A particles have cubic morphology while the mixture shows intergrowth of cubic and pyramidal crystals. The surface area for A + X mixture was around 330 m2/g which is higher than zeolite A, however, lower than typical X zeolite. CO2 and N2 adsorption isotherms were measured and the data was fitted by the Dual Site Langmuir equation. These zeolites were then tested for CO2 capture at different temperatures in a process with a nine step cycle. When compared with 13X zeolites at higher temperature (∼90 °C), both the zeolite A + X mixture and zeolite A prepared from fly ash showed better performance in CO2 capture from flue gas because they have higher selectivity of CO2 over N2.
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El-Naggar, M.R., El-Kamash, A.M., El-Dessouky, M.I., Ghonaim, A.K.: Two-step method for preparation of NaA-X zeolite blend from fly ash for removal of cesium ions. J. Hazard. Mater. 154, 963–972 (2008)
Huiand, K.S., Chao, Y.H.: Methane emissions abatement by multi-ion-exchanged zeolite A prepared from both commercial-grade zeolite and coal fly ash. Environ. Sci. Technol. 42, 7392–7397 (2008)
Jha, V.K., Nagae, M., Matsuda, M., Miyake, M.: Zeolite formation from coal fly ash and heavy metal ion removal characteristics of thus-obtained zeolite X in multi-metal systems. J. Environ. Manag. 90, 2507–2514 (2009)
Li, G., Xiao, P., Webley, P.A., Zhang, J., Singh, R., Marshall, M.: Capture of CO2 from high humidity flue gas by vacuum swing adsorption with zeolite 13X. Adsorption 14, 415 (2008)
Majchrzak-Kućeba, I., Nowak, W.: A thermogravimetric study of the adsorption of CO2 on zeolites synthesized from fly ash. Thermochim. Acta 437, 67–74 (2005)
Maroto-Valer, M.M., Lu, Z., Zhang, Y., Tang, Z.: Sorbents for CO2 capture from high carbon fly ashes. Waste Manag. 28, 2320–2328 (2008)
Querol, X., Moreno, N., Umaña, J.C., Alastuey, A., Hernández, E., López-Soler, A., Plana, F.: Synthesis of zeolites from coal fly ash: an overview. Int. J. Coal Geol. 50, 413 (2002)
Querol, X., Moreno, N., Umaña, J.C., Juan, R., Hernández, S., Fernandez-Pereira, C., Ayora, C., Janssen, M., Garcıá-Martıńez, J., Linares-Solano, A., Cazorla-Amoros, D.: Application of zeolitic material synthesised from fly ash to the decontamination of waste water and flue gas. J. Chem. Biotechnol. 77, 292–298 (2002)
Wang, Z.-M., Arai, T., Kumagai, M.: Adsorption separation of low concentrations of CO2 and NO2 by synthetic zeolites. Energy Fuels 12, 1055–1060 (1998)
Wolsky, A.M., Daniels, E.J., Jody, B.J.: CO2 capture from the flue gas of conventional fossil-fuel fired power plants. Environ. Prog. 13, 214–219 (1994)
Zhang, Y., Fang, Y., Huang, J., Wang, Y.: Utilization of fly ash to prepare adsorbent for SO2 removal in flue gas. Energy Sour. Part A, Recov., Util. Environ. Eff. 28, 727–741 (2006)
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Liu, L., Singh, R., Xiao, P. et al. Zeolite synthesis from waste fly ash and its application in CO2 capture from flue gas streams. Adsorption 17, 795–800 (2011). https://doi.org/10.1007/s10450-011-9332-8
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DOI: https://doi.org/10.1007/s10450-011-9332-8