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Catalytic combustion in a sintermetal reactor with an integrated heat exchanger

Exploitable results

Traditional combustion systems are associated with high NOx emissions. In this project a sintered metal reactor using the catalytic combustion of methane was designed, constructed and tested using a mathematical model. This allowed a better temperature tuning in the reactor and the emission of CO and NOx was prevented. High temperatures are reached in the combustion of methane and at these temperatures nitrogen and oxygen react to produce NOx . The catalytic combustion of methane can, however, proceed at relatively low temperatures, which can significantly reduce, or even prevent NOx formation. In a previous JOULE project the principle of sintered metal reactors was proven and assessed. The objective of this research was two-fold; firstly to develop a mathematical model that predicts the heat conductivity and permeability of sintered metal from its basic properties, without the necessity for complex measurements. This improves process performance by combining heat transfer and chemical reaction. It also allows better temperature tuning in the reactor, preventing the emission of NOx and CO. Secondly the project designs, constructs and tests a sintered metal reactor using the catalytic combustion of methane to achieve very low NOx emissions (<5 ppm).