TITLE:
Low Pressure Catalytic Combustion of Hydrogen on Palladium
AUTHORS:
Xi Wang, Yixiang Shi, Ningsheng Cai, Xiaocheng Lv, Wei Yao
KEYWORDS:
Airship, Hydrogen, Catalytic Combustion, Impregnation, Reaction Kinetic
JOURNAL NAME:
Journal of Power and Energy Engineering,
Vol.3 No.4,
April
13,
2015
ABSTRACT:
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.