CO2 Sorption-Enhanced Processes by Hydrotalcite-Like Compounds at Different Temperature Levels

K. Gallucci; F. Micheli; D. Barisano; A. Villone; P.U. Foscolo; L. Rossi

doi:10.1515/ijcre-2014-0131

Article

CO₂ Sorption-Enhanced Processes by Hydrotalcite-Like Compounds at Different Temperature Levels

K. Gallucci , F. Micheli , D. Barisano , A. Villone , P.U. Foscolo and L. Rossi

Published/Copyright: April 28, 2015

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From the journal International Journal of Chemical Reactor Engineering Volume 13 Issue 2

Abstract

The aim of this work is to identify solid sorbents for CO₂ capture for coal and biomass syngas conditioning and cleaning by means of a sorption-enhanced reaction process. Hydrotalcite-like compounds (HTlcs) were synthesized with and without K₂CO₃ impregnation. Samples were characterized by scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) and Barrett–Joyner–Halenda (BJH) porosimetry after synthesis and after capture tests, respectively. Sorption and desorption tests were performed in a fluidized bed reactor, under cyclic conditions, at two different temperature levels: 350/450°C and 600/700°C. At low temperature only the Mg–Al HTlcs K promoted samples showed stability and sorption capacity comparable with literature values. On the other hand, results at high temperature indicate that the mixed Mg-Ca-Al HTlcs samples exhibit the best behavior with the highest sorption capacity (1.7 mmol_CO2/g) almost stable over 5 sorption/regeneration cycles; furthermore, addition of steam allowed increasing their reactivity by 70% compared to the dry value. This type of sorbent could be a promising candidate to prepare a bifunctional sorbent–catalyst for sorption-enhanced processes, taking place directly in the fluidized bed gasifier, or downstream the reactor for adjustment of gas composition before further conversion in gaseous energy carriers.

Keywords: CO2 sorption-enhanced processes; process intensification; hydrotalcite-like compounds; bifunctional sorbent–catalyst

Acknowledgments

This work was carried out under the National Research Program “Ricerca Di Sistema elettrico.” Authors are grateful to the Ministry of Economic Development for funding and to Prof. Donatello Magaldi for his precious help in the SEM analysis examination.

References

1. Barisano,D., Freda,C., Nanna,F., Fanelli,E., Villone, A., 2012. Biomass gasification and in-bed contaminants removal: Performance of iron enriched Olivine and bauxite in a process of steam/O₂ gasification. Bioresource Technology118, 187–194.10.1016/j.biortech.2012.05.011Search in Google Scholar

2. Di Felice,L., Courson,C., Jand,N., Gallucci,K., Foscolo,P.U., Kiennemann,A., 2009a. Catalytic biomass gasification: Simultaneous hydrocarbons steam reforming and CO₂ capture in a fluidised bed reactor. Chemical Engineering Journal154, 375–383.10.1016/j.cej.2009.04.054Search in Google Scholar

3. Di Felice,L., Foscolo,P.U., GibilaroL., 2009b. CO₂ capture by calcined dolomite in a fluidized bed: Experimental data and numerical simulation. International Journal of Chemical Reactor Engineering9, Article A55.10.1515/1542-6580.2584Search in Google Scholar

4. Duan,X., Evans,D.G. (Eds), 2006. Layered Double Hydroxides. Springer-Verlag, Berlin Heidelberg (Structure and Bonding vol. 119).10.1007/b100426Search in Google Scholar

5. Ghajari,A., Kamali,M., Mortazavi,S.A., 2007. A comprehensive study of Laffan Shale Formation in Sirri oil fields, offshore Iran: Implications for borehole stability. Journal of Petroleum Science and Engineering107, 50–56.10.1016/j.petrol.2013.03.030Search in Google Scholar

6. Magaldi,D., Giammatteo,M., 2008. Microstrutture della crosta calcarea laminare (orizzonte petrocalcico) di due paleo suoli pleistocenici nell’agro di Cerignola(Foggia). Il Quaternario, Italian Journal of Quaternary Sciences21(2), 423–432.Search in Google Scholar

7. Maroño,M., Torreiro,Y., Gutierrez,L., 2013. Influence of steam partial pressures in the CO₂ capture capacity of K-doped hydrotalcite-based sorbents for their application to SEWGS processes. International Journal of Greenhouse Gas Control14, 183–192.10.1016/j.ijggc.2013.01.024Search in Google Scholar

8. Micheli,F., Parabello,L., Gallucci,K., Rossi,L., Foscolo,P.U., 2014. H₂ from SERP: double hydroxide CO₂ sorbents at low and high temperatures. WSED Conference 26–27 February 2014, Wels/Austria.10.1007/978-3-658-04355-1_18Search in Google Scholar

9. Narayanan,S., Krishna,K., 1998. Hydrotalcite-supported palladium catalysts: Part I: Preparation, characterization of hydrotalcites and palladium on uncalcined hydrotalcites for CO chemisorption and phenol hydrogenation. Hydrotalcite-supported palladium catalysts. Applied Catalysis A174, 221–229.10.1016/S0926-860X(98)00190-2Search in Google Scholar

10. Navrotsky, A., Putnam, R.L., Winbo, C., Ros, N., 1997. Thermochemistry of double carbonates in the K₂CO₃-CaCO₃ system. American Mineralogist82, 546–548.10.2138/am-1997-5-614Search in Google Scholar

11. OginoT., SuzukiT., SawadaK., October 1987. The formation and transformation mechanism of calcium carbonate in water. Geochimica et Cosmochimica Acta51(10), 2757–2767.10.1016/0016-7037(87)90155-4Search in Google Scholar

12. Oliveira, E.L.G., Grande, C.A., Rodrigues, A.E., 2008. CO₂ sorptions on hydrotalcite and alkali-modified hydrotalcites at high temperatures. Journal of Separation and Purification Technology62, 137–147.10.1016/j.seppur.2008.01.011Search in Google Scholar

13. Silcox, G.D., Kramlich, J.C., Pershling, D.W., 1989. A mathematical model for flash calcination of dispersed CaCO₃ and Ca(OH)₂ particles. Industrial and Engineering Chemistry Research28, 155–160.10.1021/ie00086a005Search in Google Scholar

14. Stanmore, B.R., Gilot, P., 2005. Review—calcination and carbonation of limestone during thermal cycling for CO2 sequestration. Fuel Processing Technology86, 1707–1743.10.1016/j.fuproc.2005.01.023Search in Google Scholar

15. Stoops, G.J., 1976. On the nature of “lublinite” from Hollanta (Turkey). American Mineralogist61, 172.Search in Google Scholar

16. Vamvuka, D., Zografos, D., Alevizos, G., 2008. Control methods for mitigating biomass ash-related problems in fluidized beds. Bioresource Technology99, 3534–3544.10.1016/j.biortech.2007.07.049Search in Google Scholar

17. Walspurger, S., Boels, L., Cobden, P.D., Elzinga, G.D., Haije, W.G., van den Brink, R.W., 2008. The crucial role of the K⁺-aluminium oxide interaction in K⁺-promoted alumina- and hydrotalcite-based materials for CO₂ sorption at high temperatures. ChemSusChem1, 643–650.10.1002/cssc.200800085Search in Google Scholar

18. Yong, Z., Rodrigues, A.E., 2002. Hydrotalcite-like compounds as adsorbents for carbon dioxide. Energy Conversion and Management43, 1865–1876.10.1016/S0196-8904(01)00125-XSearch in Google Scholar

19. Zevenhoven, R., Kohlmann, J., 2002. Direct dry mineral carbonation for CO₂ emission reduction in Finland. 27^th International Technical Conference on Coal Utilization & Fuel Systems Clearwater (FL), USA, March 4–7, 2002.Search in Google Scholar

20. Zhenissova, A., Micheli, F., Rossi, L., Stendardo, S., Foscolo, P.U., Gallucci, K., 2014. Experimental evaluation of Mg- and Ca-based synthetic sorbents for CO₂ capture. Chemical Engineering Research and Design92, 727–740.10.1016/j.cherd.2013.11.005Search in Google Scholar

21. http://webbook.nist.gov/chemistry/ (Accessed February 9, 2015).Search in Google Scholar

Published Online: 2015-4-28

Published in Print: 2015-6-1

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https://doi.org/10.1515/ijcre-2014-0131

Keywords for this article

CO2 sorption-enhanced processes; process intensification; hydrotalcite-like compounds; bifunctional sorbent–catalyst