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Catalysis Letters

, Volume 141, Issue 5, pp 691–698 | Cite as

Mixed Naphtha/Methanol Feed Used in the Thermal Catalytic/Steam Cracking (TCSC) Process for the Production of Propylene and Ethylene

  • H. T. Yan
  • R. Le Van Mao
Article

Abstract

The addition of some methanol to petroleum light naphtha used as feed in the Thermal Catalytic/Steam Cracking(TCSC) process significantly increases the product yield of C2–C4 olefins, particularly that of ethylene + propylene. However, over 20–25 wt% of methanol content in the naphtha feed, the beneficial effect is attenuated. At relatively high values of contact time, the (Zn–Pd) co-catalyst of the hybrid catalyst exerts noticeably its coke cleaning effect on the zeolite acid sites, particularly when methanol is present in the feed. The product weight ratio (propylene/ethylene) is not affected by such “moderate” addition of methanol and remains higher than 1.3.

Graphical Abstract

Keywords

Thermal catalytic steam cracking Hybrid catalysts Mixed naphtha/methanol feed 

Notes

Acknowledgments

The authors thank the Natural Science and Engineering Research Council of Canada (NSERC) and Valeo Management, for their financial support. They also thank Ultramar Inc (Quebec, Canada) for having supplied the light naphtha used in this work.

References

  1. 1.
    Chauvel A, Lefebvre G (1989) Petrochem Process Technip (Paris) 1:117Google Scholar
  2. 2.
    Corma A, Melo FV, Sauvanat L, Ortega F (2005) Catal Today 107:699CrossRefGoogle Scholar
  3. 3.
    Yan HT, Le Van Mao R (2010) Appl Catal A General 375:63CrossRefGoogle Scholar
  4. 4.
    Le Van Mao R, Melancon S, Gauthier-Campbell C, Kletniek P (2001) Catal Lett 73:181CrossRefGoogle Scholar
  5. 5.
    Melancon S, Le Van Mao R, Kletniek P, Ohayon D, Interim S, Saberi MA (2002) Catal Lett 80:103CrossRefGoogle Scholar
  6. 6.
    Le Van Mao R, Al-Yassir N, Francois N, Monnier J (2006) Top Catal 37:107CrossRefGoogle Scholar
  7. 7.
    Le Van Mao R, Vu NT, Al-Yassir N, Yan HT (2008) Ind Eng Chem Res 47:2963CrossRefGoogle Scholar
  8. 8.
    Le Van Mao R, Muntasar A, Yan HT (2009) Catal Lett 130:86CrossRefGoogle Scholar
  9. 9.
    Le Van Mao R (1999) Microporous Mesoporous Mater 28:9CrossRefGoogle Scholar
  10. 10.
    Le Van Mao R (1988) US Patent 4,732,881Google Scholar
  11. 11.
    Le Van Mao R, Al-Yassir N, Nguyen DTT (2005) Microporous Mesoporous Mater 85:176CrossRefGoogle Scholar
  12. 12.
    Le Van Mao R, Dufresne L, Yao J (1990) Appl Catal 65:143CrossRefGoogle Scholar
  13. 13.
    Al-Yassir N, Le Van Mao R, Heng F (2005) Catal Lett 100:1CrossRefGoogle Scholar
  14. 14.
    Parera JM, Traffano EM, Musso JC, Pieck CL (1983) In: Pajonk GM, Teichner SJ, Germain JE (eds) Studies in surface science and catalysis, vol 17. Elsevier, Amsterdam, p 101Google Scholar
  15. 15.
    Muntasar A, Le Van Mao R, Yan HT (2010) Ind Eng Chem Res 49:3611CrossRefGoogle Scholar
  16. 16.
    Arstad B, Kolboe S (2001) J Am Chem Soc 123:8137CrossRefGoogle Scholar
  17. 17.
    Bjorgen M, Svelle S, Joensen F, Nerlov J, Kolboe S, Bonino F, Palumbo L, Bordiga S, Olsbye U (2007) J Catal 249:195CrossRefGoogle Scholar
  18. 18.
    Elaloui E, Begag R, Pommier B, Pajonk GM (2002) In: Gaigneaux E, De Vos DE, Grange p, Jacobs PA, Martens JA, Ruiz P, Poncelet G (eds) Studies in surface science and catalysis, vol 143. Elsevier, Amsterdam, p 331Google Scholar
  19. 19.
    Al-Yassir N, Le Van Mao R (2008) Can J Chem 86:146CrossRefGoogle Scholar
  20. 20.
    Al-Yassir N (2007) PhD thesis, Concordia UniversityGoogle Scholar
  21. 21.
    Dagle RA, Chin YH, Wang Y (2007) Top Catal 46:358CrossRefGoogle Scholar
  22. 22.
    Le Van Mao R, Al-Yassir N, Lu L, Vu NT, Fortier A (2006) Catal Lett 112:13CrossRefGoogle Scholar
  23. 23.
    Stocker M (1999) Microporous Mesoporous Mater 29:3CrossRefGoogle Scholar
  24. 24.
    Corma A, Melo FV, Sauvanaud L, Ortega FJ (2004) Appl Catal A General 265:195CrossRefGoogle Scholar
  25. 25.
    Wan J, Wei Y, Liu Z, Li B, Qi Y, Li M, Xie P, Meng S, He Y, Chang F (2008) Catal Lett 124:150CrossRefGoogle Scholar
  26. 26.
    Solyar BZ, Aladysheva EZ, Mnev MV, Popov VN, LSh Glazov, Klimtseva EA, Fil’kova NA (2010) Chem Tech Fuels Oils 46:99CrossRefGoogle Scholar
  27. 27.
    Bonifay R, Marcilly C (2001) In: Leprince P (ed) Conversion processes. Technip, Paris, p 196Google Scholar
  28. 28.
    Feng H, Li C, Shan H (2009) Appl Clay Sci 42:439CrossRefGoogle Scholar
  29. 29.
    Sources: Methanex and Oil-Price.Net (October 12, 2010)Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Department of Chemistry and BiochemistryIndustrial Catalysis Laboratory, Concordia UniversityMontrealCanada

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