Issue
Korean Chemical Engineering Research,
Vol.56, No.2, 269-274, 2018
Effect of Cerium loading on Stability of Ni-bimetallic/ZrO2 Mixed Oxide Catalysts for CO Methanation to Produce Natural Gas
All the Ni-Co-Ce-ZrO2 mixed oxides are prepared by co-precipitations methods. Methanation of CO and H2 reaction is screened tested over different fractions of cerium (2, 4, 7 and 12 wt.%) over Ni-Co/ZrO2 bimetallic catalysts are investigated. The mixed oxides are characterized by XRD, CO-Chemisorption, TGA and screened methanation of CO and H2 at 360 °C for 3000 min on stream at typical ratio CO:H2=1:1. In Ni-Co/CeZrO2 series 2 wt.% Ce loading catalyst shows most promising catalyst for CH4 selectivity than CO2, which directs more stability with less coke formation. The high activity is attributed to the better bimetallic synergy and the well-developed crystalline phases of NiO, ZrO2 and Ce-ZrO2. Other bimetallic mixed oxides NCoZ, NCoC4-12Z has faster deactivation with low methanation activity. Finally, 2 wt.% Ce loading catalyst was found to be optimal coke resistant catalyst.
[References]
  1. Kramer M, Stowe K, Duisberg M, Muller F, Reiser M, Sticher S, Maier WF, Appl. Catal. A: Gen., 369(1-2), 42, 2009
  2. Sayle DC, Maicaneanu SA, Watson GW, J. Amer. Chem. Soc., 124, 11429, 2002
  3. Liu J, Zhao Z, Wang JQ, Xu CM, Duan AJ, Jiang GY, Yang Q, Appl. Catal. B: Environ., 84(1-2), 185, 2008
  4. Harrison PG, Ball IK, Daniell W, Lukinskas P, Cespedes M, Miro EE, Ulla MA, Chem. Eng. J., 95(1-3), 47, 2003
  5. Fornasiero P, Balducci G, Kaspar J, Meriani S, Dimonte R, Graziani M, Catal. Today, 29(1-4), 47, 1996
  6. Seok SH, Choi SH, Park ED, Han SH, Lee JS, J. Catal., 209(1), 6, 2002
  7. Ruckenstein E, Hu YH, J. Catal., 162(2), 230, 1996
  8. Watanabe M, Uchida H, Ohkubo K, Igarashi H, Appl. Catal. B: Environ., 46(3), 595, 2003
  9. Monte RD, Kaspar J, Topics Catal., 28, 47, 2004
  10. Suh DJ, Kwak C, Kim JH, Kwon SM, Park TJ, J. Power Sources, 142(1-2), 70, 2005
  11. Ko EY, Park ED, Seo KW, Lee HC, Lee D, Kim S, Catal. Lett., 110(3-4), 275, 2006
  12. Avgouropoulos G, Ioannides T, Papadopoulou C, Batista J, Hocevar S, Matralis HK, Catal. Today, 75(1-4), 157, 2002
  13. Bhavani AG, Kim WY, Kim JY, Lee JS, Appl. Catal. A: Gen., 450, 63, 2013
  14. Ocampo F, Louis B, Roger AC, Appl. Catal. A: Gen., 369(1-2), 90, 2009
  15. Liang Q, Wu XD, Weng D, Lu ZX, Catal. Commun., 9, 202, 2008
  16. Reddy BM, Rao KN, Catal. Commun., 10, 1350, 2009
  17. Bueno-Lopez A, Krishna K, Makkee M, Moulijn JA, J. Catal., 230(1), 237, 2005
  18. Shumin S, Wenling C, Weishen Y, Chinese J. Catal., 30, 685, 2009
  19. Deleitenburg C, Trovarelli A, Kaspar J, J. Catal., 166(1), 98, 1997
  20. Park SD, Vohs JM, Gorte RJ, Nature, 404(6775), 265, 2000
  21. Uner D, Demirkol MK, Dernaika B, Appl. Catal. B: Environ., 61(3-4), 334, 2005
  22. Kustov AL, Frey AM, Larsen KE, Johannessen T, Norskov JK, Christensen CH, Appl. Catal. A: Gen., 320, 98, 2007
  23. Zhang JG, Wang H, Dalai AK, J. Catal., 249(2), 300, 2007
  24. van Meerten RZC, Vollenbroek JC, de Croon MHJM, van Nisselrooij PFMT, Coenen JWE, Appl. Catal., 3, 29, 1982