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NOX is a greenhouse gas about thirty times worse than CO2. NOX will be produced only if Ammonia is burnt in an unsuitable combustor, typically of the type used for other fuel types such as methane.Now consider that “AddBlue”, the additive used to suppress NOX in diesels, uses Ammonia from decomposed Urea as it’s active ingredient. The urea is introduced into the catalyst where the temperature decomposes it into ammonia which in turn reacts with the NOX to convert it into water and nitrogen.So to burn Ammonia with an ultra low NOX emission it requires a two stage combustion system, a so called “rich to lean” cycle . This has been demonstrated in a few places now with NOX levels below those of conventional Carbon fuels.
NOX is a greenhouse gas about thirty times worse than CO2. NOX will be produced only if Ammonia is burnt in an unsuitable combustor, typically of the type used for other fuel types such as methane.
Now consider that “AddBlue”, the additive used to suppress NOX in diesels, uses Ammonia from decomposed Urea as it’s active ingredient. The urea is introduced into the catalyst where the temperature decomposes it into ammonia which in turn reacts with the NOX to convert it into water and nitrogen.
So to burn Ammonia with an ultra low NOX emission it requires a two stage combustion system, a so called “rich to lean” cycle . This has been demonstrated in a few places now with NOX levels below those of conventional Carbon fuels.
