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Upgrading light hydrocarbons: A tandem catalytic system for alkane/alkene coupling

Labinger, Jay A. and Leitch, David C. and Bercaw, John E. and Deimund, Mark A. and Davis, Mark E. (2014) Upgrading light hydrocarbons: A tandem catalytic system for alkane/alkene coupling. In: 247th ACS National Meeting & Exposition, March 16-20, 2014, Dallas, TX.

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Light hydrocarbons, with relatively low fuel value, are abundant from several sources, including mixed alkane/alkene refinery byproduct streams. A tandem system consisting of a compatible combination of a homogeneous alkane dehydrogenation catalyst (known to be kinetically efficient but thermodynamically disfavored at low temps.) with an olefin dimerization catalyst could effect the coupling of an alkane and alkene to produce a heavier, more valuable fuel mol. (CnH2n+2 + CnH2n = C2nH4n+2), a reaction that is thermodynamically favorable below 250 °C. We have demonstrated that a homogeneous soln. of the pincerligated iridium complex t-Bu4[PCP]IrH4 along with Cp*TaCl2(C2H4) couples 1-hexene/n-heptane to C13/C14 products, operating with up to 90% cooperativity. Combining the dehydrogenation catalyst with a heterogeneous dimerization catalyst offers a promising approach to a practical process; our progress towards that target will be reported.

Item Type:Conference or Workshop Item (Paper)
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URLURL TypeDescription Website
Labinger, Jay A.0000-0002-1942-9232
Davis, Mark E.0000-0001-8294-1477
Additional Information:© 2014 American Chemical Society.
Record Number:CaltechAUTHORS:20140506-085307639
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45512
Deposited By: Tony Diaz
Deposited On:06 May 2014 16:39
Last Modified:09 Mar 2020 13:18

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