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Breakdown and Combustion of JP-10 Fuel Catalyzed by Nanoparticulate CeO2 and Fe2O3
 

Summary: Breakdown and Combustion of JP-10 Fuel Catalyzed by
Nanoparticulate CeO2 and Fe2O3
Brian Van Devener and Scott L. Anderson*
Department of Chemistry, UniVersity of Utah, 315 South 1400 East Room 2020,
Salt Lake City, Utah 84112
ReceiVed February 14, 2006. ReVised Manuscript ReceiVed June 27, 2006
Thermal breakdown and oxidation of JP-10 (exo-tetrahydrodicyclopentadiene, C10H16), in the presence of
nanoparticulate CeO2 and Fe2O3, was studied in a small alumina flow-tube reactor on time scales around 1
ms. Decomposition products were analyzed by an in situ mass spectrometer. In the absence of any oxidizer,
JP-10 pyrolyzes at temperatures above 900 K to a variety of hydrocarbon products. In the absence of O2,
both CeO2 and Fe2O3 oxidize JP-10 efficiently, with decomposition onset temperatures up to 300 K lower
than in a clean alumina flow tube under identical flow conditions and substantial conversion to products such
as water, CO2, CO, and formaldehyde. Under such noncatalytic conditions, the CeO2 or Fe2O3 is reduced and
deactivated by the reaction with JP-10. Decomposition of JP-10 in the presence of stoichiometric O2 was also
studied, with and without CeO2 present. In absence of CeO2, some oxidation products are observed; however,
the rate-limiting step appears to be pyrolysis of JP-10, and pyrolysis products dominate for temperatures up
to 1200 K. When both O2 and CeO2 are present, oxidation is clearly catalytic; i.e., oxidation is initiated by the
reaction of JP-10 with CeO2, which is then reoxidized by O2.
1. Introduction
JP-10 (exo-tetrahydrodicyclopentadiene, C10H16) is a synthetic

  

Source: Anderson, Scott L. - Department of Chemistry, University of Utah

 

Collections: Energy Storage, Conversion and Utilization; Materials Science; Chemistry