Autocatalytic dehydrogenation of propane
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Homogeneous gas-phase pyrolysis of propane was performed by using continuous CO2 laser irradiation for bulk heating of the reaction mixture. Laser energy was absorbed by ethylene, the main product of propane dehydrogenation, and transferred to the reaction medium via collisional relaxation. A mechanism of propane dehydrogenation is suggested to describe the pyrolysis process. The mechanism involves autocatalysis by ethylene and includes propane–ethylene interaction with the formation of ethyl and propyl radicals.
KeywordsPropane pyrolysis Autocatalysis Laser irradiation Ethylene biradical
This work has been supported by RFBR 12-08-00871, Russian Federation President Grant for the Leading Scientific Schools for funding (NSh 524.2012.3), Project UNIHEAT of Skolkovo Foundation, Integration Project no. 130, Federal Program "Scientific and Scientifical-Pedagogical cadres innovation Russia for 2009-2013" of the Federal Agency For Science And Innovation, RFBR grant no. 12-07-00065. The authors are grateful to Dr S.E. Malykhin for scientific and technical assistance.
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