Catalytic Combustion in a Transient High Pressure Facility

摘要

Temperature and composition measurements from experiments on the catalytic combustion of weak mixtures of hydrogen, methane, ethylene and liquid propane, in air initially at pressures up to 60 bar and temperatures up to 820 K are presented and are compared with a simple, theoretical model. The facility was not capable of sustaining catalytic combustion of methane at the test conditions available, but catalytic reactions were obtained using the other fuels tested. Premixed and injected fuels were studied, with the quantitative work concentrating on ethylene injection into air flows to give fully mixed equivalence ratios of 0.1 to 0.2. Results show that the transient facility produces high temperature and pressure air flows sufficiently steady to sustain surface oxidation processes. It is also possible to obtain relevant measurements of temperature and gas composition within the run period of 1 sec.