Exploitable results
Catalysts have been developed covering the complete temperature range of operation for gas turbines, reformers and radiant heaters. For the low and medium temperature ranges precious metal catalysts have been developed based on palladium and platinum and a combination of palladium with platinum, specially formulated for high activity in the conversion of methane. For the high temperature range transition metal catalysts were developed. The most successful systems investigated were copper and manganese based catalysts. For high temperature applications ceramic component based silicon carbide and silicon nitride were developed. They were exposed to high temperature furnace cycling in air to confirm their suitability for subsequent use in the gas turbine concept. Process parameters for the production of iron chromium alloy sintered metal bodies were developed for application in the reformer concept, and new coating techniques were developed. Physical data of catalytic systems based on porous sintered metal and ceramic monoliths were obtained and implemented in mathematical models. Computer models were developed for the first stage of the gas turbine, co-current concentric reformer and the radiant heater. For the gas turbine and for the radiant heater concept a close match was obtained with the experimental results. This enabled the models to be used as a predictive tool, to aid the optimization of the working catalytic combustion concepts. For the reformer concept a test rig was built in which a sintered metal based reactor was tested up to a size of 2 kW heat production. Two radiant heater concepts were tested. To test the gas turbine concept 2 high pressured test rigs were built.
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