Exhausts of airship fabric bag in the stratosphere such as hydrogen which can be used for fuels by using catalytic combustion method. This can save the extra fuels used in the power system. Pd/γ- Al2O3 catalyst was prepared in this work by impregnation method and the H2 catalytic combustion reaction kinetic was investigated between the pressure of 3.6 kPa and 101.3 kPa. The effects of temperature, pressure and gas composition ratio were studied in the paper. According to the experiment results, the increase of temperature increases the H2 conversion. The parameter pressure has a positive effect on H2 reaction kinetics and low concentration of H2 in mixtures shows better performance. The dependence of temperature on H2 reaction rate becomes more sensitive in high pressure.
 Pfefferle, L.D. and Pfefferle, W.C. (1987) Catalysis in Combustion. Catalysis Reviews: Science and Engineering, 29, 219-267. http://dx.doi.org/10.1080/01614948708078071
 Hardiyanto, W., Koshi, S., Koichi, E. and Hiromichi, A. (1999) Oxidation of Methane over Pd/Mixed Oxides for Catalytic Combustion. Catalysis Today, 47, 95-101. http://dx.doi.org/10.1016/S0920-5861(98)00286-7
 Kikuchi, R., Maeda, S., Sasaki, K., et al. (2003) Catalytic Activity of Oxide-Supported Pd Catalysts on a Honeycombfor Low-Temperature Methane Oxidation. Applied Catalysis A, 239, 169-179. http://dx.doi.org/10.1016/S0926-860X(02)00387-3
 Soraia, T.B., Emerson, A.S., Luca, L., et al. (2006) Methane Combustion over PdO-Alumina Catalysts: The Effect of Palladium Precursors. Applied Catalysis B, 63, 9-14. http://dx.doi.org/10.1016/j.apcatb.2005.08.009
 Deutschmann, O., Behrendt, F. and Wamatz, J. (1994) Modelling and Simulation of Heterogeneous Oxidation of Methane on a Platinum Foil. Catalysis Today, 21, 461-470. http://dx.doi.org/10.1016/0920-5861(94)80168-1
 Marco, S. and John, M. (2013) Hetero-/Homogeneous Combus-tion of Hydrogen/Air Mixtures over Platinum: Fuel-Lean versus Fuel-Rich Combustion Modes. International Journal of Hydrogen Energy, 38, 10654-10670. http://dx.doi.org/10.1016/j.ijhydene.2013.06.069
 Kramer, J.F., Reihani, S.-A.S. and Jackson, G.S. (2002) Low-Temperature Combustion of Hydrogen on Supported Pd Catalysts. Proceedings of the Combustion Institute, 29, 989-996. http://dx.doi.org/10.1016/S1540-7489(02)80125-0
 Jin, L.Y., He, M., Lu, J.Q., et al. (2008) Palladium Catalysts Supported on Novel CexY1-xO Washcoats for Toluene Catalytic Combustion. Journal of Rare Earths, 26, 614-618. http://dx.doi.org/10.1016/S1002-0721(08)60148-9
 Kikuchi, R., Maeda, S., Sasaki, K., Wennerstr?m, S., Ozawa, Y. and Eguchi, K. (2003) Catalytic Activity of Oxide- Supported Pd Catalysts on a Honeycomb for Low-Temperature Methane Oxidation. Applied Catalysis A: General, 239, 169-179.