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2014 | 16 | 4 | 106-110
Tytuł artykułu

Effect of the ruthenium loading and barium addition on the activity of ruthenium/carbon catalysts in carbon monoxide methanation

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A group of supported ruthenium catalysts was prepared and tested in methanation of small CO amounts (7000 ppm) in hydrogen-rich streams. High surface area graphitized carbon (484 m2/g) was used as a support for ruthenium and RuCl3 was used as a Ru precursor. Some of the Ru/C systems were additionally doped with barium (Ba(NO3)2 was barium precursor). The catalysts were characterized by the chemisorption technique using CO as an adsorbate. To determine the resistance of the catalysts to undesired carbon support methanation, the TG-MS experiments were performed. They revealed that the barium addition inhibits support losses. The studies of CO methanation (fl ow reactor, atmospheric pressure) have shown that some of the supported ruthenium catalysts exhibit high activities referred to the metal mass. The catalytic properties of ruthenium proved to be dependent on metal dispersion. Some of the Ru/C and Ba-Ru/C systems exhibit higher activity in CO hydrogenation than the commercial nickel-based catalyst.
Słowa kluczowe
Wydawca
Rocznik
Tom
16
Numer
4
Strony
106-110
Opis fizyczny
Daty
wydano
2014-12-01
online
2014-12-11
Twórcy
  • Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, 00-664 Warsaw, Poland
  • Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, 00-664 Warsaw, Poland
  • Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, 00-664 Warsaw, Poland
  • Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, 00-664 Warsaw, Poland
autor
  • Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, 00-664 Warsaw, Poland
Bibliografia
  • 1. Satterfield, C.N. (1996). Heterogeneous Catalysis in Industrial Practice (2nd ed.), Malabar, USA: Krieger Publishing Company.
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  • 3. Galetti, C., Specchia, S., Saracco, G. & Specchia, V. (2010). CO- selective methanation over Ru- γAl2O3 catalysts in H2-rich gas for PEM FC applications. Chem. Eng. Sci. 65, 590-596, DOI: 10.1016/j.ces.2009.06.052.[Crossref]
  • 4. Znak, L., Kaszkur, Z. & Zieliński, J. (2010). Evolution of metal phase in the course of CO hydrogenation on potassium promoted Ni/ Al2O3 catalyst. Catal. Lett. 136, 92-95. DOI: 10.1007/s10562-009-0199-1.[WoS][Crossref]
  • 5. Kim, S.H., Nam S.W., Lim, T.H. & Lee, H.I. (2008). Effect of pretreatment on the activity of Ni catalyst for CO removal reaction by water-gas shift and methanation. Appl. Catal. B- -ENVIRON 81, 97-104. DOI: 10.1016/j.apcatb.2007.12.009.[Crossref]
  • 6. Sehested, J., Dahl, S., Jacobsen, J. & Rostrup-Nielsen, R. (2005). Methanation of CO over nickel: mechanism and kinetics at high H2/CO ratios. J. Phys. Chem. B 109, 2432-2438. DOI: 10.1021/jp040239s.[Crossref]
  • 7. Akin, A.N., Ataman, M., Aksoylu, A.E. & Önsan, Z.I. (2002). CO2 fixation by hydrogenation over coprecipitated Co/Al2O3. React. Kinet. Catal. Lett. 76(2), 265-270. DOI: 10.1023/A:1016579726726.[Crossref]
  • 8. Kowalczyk, Z., Stołecki, K., Raróg-Pilecka, W., Miśkiewicz, E., Wilczkowska, E. & Karpiński, Z. (2008). Supported ruthenium catalysts for selective methanation of carbon oxides at very low COx/H2 ratios. Appl. Catal. A-GEN 342, 35-39. DOI: 10.1016/j.apcata.2007.12.040.[Crossref]
  • 9. Okuhara, T., Khimura, T., Kobayashi, K., Misono, M. & Yoneda, Y. (1984). Effects of dispersion in carbon monoxide adsorption and carbon monoxide hydrogenation over alumina- -supported ruthenium catalysts. Bull. Chem. Soc. Jpn. 57(4), 938-943. DOI: 10.1246/bcsj.57.938.[Crossref]
  • 10. Londhe, V.P., Kamble, V.S. & Gupta, N.M. (1997). Effect of hydrogen reduction on the CO adsorption and methanation reaction over Ru/TiO2 and Ru/Al2O3 catalysts. J. Mol. Catal. A-CHEM 121, 33-44. DOI: 10.1016/S1381-1169(96)00449-9.[Crossref]
  • 11. VanderWiel, D.P., Pruski, M. & King, T.S. (1999). A kinetic study on the adsorption and reaction of hydrogen over silica-supported ruthenium and silver-ruthenium catalysts during the hydrogenation of carbon monoxide. J. Catal. 188, 186-202. DOI: 10.1006/jcat.1999.2646.[Crossref]
  • 12. Sakakini, B.H. (1997). Temperature-programmed surface reaction (TPSR) of pre-adsorbed carbon CO and CO/H2 synthesis over Ru-Cs/Al2O3 catalysts. J. Mol. Catal. A-CHEM 127, 203-209. DOI: 10.1016/S1381-1169(97)00131-3.[Crossref]
  • 13. Gupta, N.M., Londhe, V.P. & Kamble, V.S. (1997). Gas- -uptake, methanation, and microcalorimetric measurements on the coadsorption of CO and H2 over polycrystalline Ru and a Ru/TiO2 catalyst. J. Catal. 169, 423-437. DOI: 10.1006/ jact.1997.1718.[Crossref]
  • 14. Fujita, S.I. & Takezawa, N. (1997). Difference in the selectivity of CO and CO2 methanation reactions. Chem. Eng. J. 68(1), 63-68. DOI: 10.1016/S1385-8947(97)00074-0.[Crossref]
  • 15. Kowalczyk, Z., Stołecki, K., Raróg-Pilecka, W., Miśkiewicz, E., Wilczkowska, E. & Karpiński, Z. (2008). Catalytic properties of small ruthenium particles supported on carbon. Studies of carbon monoxide methanation. Pol. J. Chem. 82, 607-612.
  • 16. Rosowski, F., Hornung, A., Hinrichsen, O., Herein, D., Muhler, M. & Ertl, G. (1997). Ruthenium catalysts for ammonia synthesis at high pressures: Preparation, characterization, and power-law kinetics. Appl. Catal. A-GEN 151(2), 443-460. DOI: 10.1016/S0926-860X(96)00304-3.[Crossref]
  • 17. Truszkiewicz, E., Raróg-Pilecka, W., Schmidt-Szałowski, K., Jodzis, S., Wilczkowska, E., Łomot, D., Kaszkur, Z., Karpiński, Z. & Kowalczyk, Z. (2009). Barium-promoted Ru/ carbon catalyst for ammonia synthesis: State of the system when operating. J. Catal. 265, 181-190. DOI: 10.1016/j.cat.2009.04.024.[Crossref]
  • 18. Kowalczyk, Z., Jodzis, S., Raróg, W., Zieliński, J. & Pielaszek, J. (1998). Effect of potassium and barium on the stability of a carbon-supported ruthenium catalyst for the synthesis of ammonia. Appl. Catal. A-GEN 173(2), 153-160. DOI: 10.1016/S0926-860X(98)00175. [Crossref]
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_pjct-2014-0079
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