Accession Number : AD0715926

Title :   A Kinetic Study of the Catalytic Dehydrogenation of Methylcyclohexane at 600, 650, and 700F and a Pressure of 5 Atmospheres.

Descriptive Note : Technical rept.,

Corporate Author : AIR FORCE AERO PROPULSION LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Lander,Herbert R. , Jr

Report Date : OCT 1970

Pagination or Media Count : 135

Abstract : Fuel enthalpy offers a readily available heat sink and can be used to dissipate the aerodynamic heating that results from sustained high speed flight in the earth's atmosphere, but is effective only up to certain levels of temperature. Catalytically enhanced heat-absorbing chemical reactions, however, can be used to increase the heat sink capacity from the fuel enthalpy. These reactions include dehydrogenation, dehydrocyclization, depolymerization, and hydrocarcking. The dehydrogenation of methylcyclohexane over a commercially available platinum-alumina catalyst bed will approximately double the heat sink from fuel enthalpy. The dehydrogenation reaction was studied at temperatures of 600, 650, and 700 degrees F and a pressure of 5 atmospheres. Tabulations and plots of test data are presented on the effects of time, reaction rate, molar feed ratio, presence of toluene, presence of reactor inerts, reaction pressure, and temperature. (Author)

Descriptors :   (*AERODYNAMIC HEATING, *HEAT SINKS), (*AVIATION FUELS, HEAT SINKS), (*CYCLOHEXANES, *DEHYDROGENATION), TOLUENES, CATALYSTS, PLATINUM, ALUMINA, FUEL ADDITIVES, ENTHALPY, THERMODYNAMICS, REACTION KINETICS

Subject Categories : Industrial Chemistry and Chemical Processing
      Fuels

Distribution Statement : APPROVED FOR PUBLIC RELEASE