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Topics in Catalysis

, Volume 55, Issue 19–20, pp 1344–1361 | Cite as

Molecular Redistribution and Molecular Averaging: Disproportionation of Paraffins via Bifunctional Catalysis

  • C. Y. Chen
  • D. J. O’Rear
  • P. Leung
Original Paper

Abstract

Paraffin disproportionation via molecular redistribution (MR) and molecular averaging (MA) couples paraffin dehydrogenation and olefin hydrogenation to olefin metathesis and presents a unique example of bifunctional catalysis. In this paper we will present a series of applications of the MR/MA chemistry in refining and petrochemical industries. The thermodynamic aspects of the MR/MA chemistry and parameters influencing the catalyst performance will be discussed. We will also report the catalyst regeneration related to coke deposition and sulfur poisoning. Furthermore, the MR technology for upgrading liquid petroleum gas is scaled up in pilot plant. MR/MA provides a simple process of paraffin disproportionation which can be accomplished otherwise only via complex combinations of other existing technologies.

Keywords

Molecular redistribution Molecular averaging Paraffin disproportionation Bifunctional catalysis 

Notes

Acknowledgments

We thank Chevron Energy Technology Company for supporting this research, especially P. White, D. Earls, C. Wilson and G. Scheuerman. We are grateful to T. Finger for technical assistance.

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Copyright information

© Springer Science+Business Media New York 2012

Authors and Affiliations

  1. 1.Chevron Energy Technology CompanyRichmondUSA

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