Endothermic Pyrolysis of JP-10 with and without Zeolite Catalyst for Hypersonic Applications

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Endothermic Pyrolysis of JP-10 with and without Zeolite Catalyst for Hypersonic Applications

Huang, Benjamin / Shrestha, Ujuma / Davis, Robert J. / Chelliah, Harsha K.

The performance of the cracking of JP-10 with and without the hydrogen form of Y-type zeolite (H-Y zeolite) was determined over a wide range of conditions relevant to endothermic fuels using both a fixed bed reactor and a microflow tube reactor. The predominant reaction during supercritical pyrolytic cracking was carbon–carbon bond cleavage to form the primary products of cyclopentadiene and cyclopentene. In contrast, the predominant reaction during supercritical catalytic cracking was the formation of secondary products such as naphthalene and substituted indenes from primary products via molecular growth reactions. Turnover frequencies for the cracking of JP-10 over H-Y under supercritical conditions were obtained and used to determine the apparent activation of JP-10 cracking over H-Y ( $186 \pm 9 kJ / mol$ ). Atmospheric microflow tube reactor results were obtained to better understand the flow residence time and transport effects, and they showed that catalytic cracking slightly decreased the endothermic cooling capacity as compared to pyrolytic cracking at similar levels of conversion. However, at similar levels of conversion, the addition of a catalyst reduced cracking temperatures by 210 K.

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Title :

Endothermic Pyrolysis of JP-10 with and without Zeolite Catalyst for Hypersonic Applications

Contributors:

Huang, Benjamin (author) / Shrestha, Ujuma (author) / Davis, Robert J. (author) / Chelliah, Harsha K. (author)

Published in:

AIAA Journal ; 56 , 4 ; 1616-1626

Publication date :

2017-12-15

Size :

11 pages

ISSN :

0001-1452 , 1533-385X

DOI :

https://doi.org/10.2514/1.J056432

Type of media :

Article (Journal)

Type of material :

Electronic Resource

Language :

English

Keywords :

Catalysts , Endothermic Pyrolysis , Heat Exchangers , Thermal Stability , Activation Energy , Hydrocarbon Fuels , Thermocouples , Shock Tube , Mass Flow , Hypersonic Vehicles

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Castaldi, Marco / Leylegian, John / Chinitz, Wallace et al. | AIAA | 2006

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