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.
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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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In honor of Dr. Jeffery Bricker for receiving the 2011 ACS Award for Creative Invention.
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Chen, C.Y., O’Rear, D.J. & Leung, P. Molecular Redistribution and Molecular Averaging: Disproportionation of Paraffins via Bifunctional Catalysis. Top Catal 55, 1344–1361 (2012). https://doi.org/10.1007/s11244-012-9910-3
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DOI: https://doi.org/10.1007/s11244-012-9910-3