Atmosphere Generators
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Dissociators
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Shown above is an AD60E; an electrically heated 6,000 cfh ammonia dissociator.
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Ammonia is comprised of two elements: Nitrogen and Hydrogen. An Ammonia dissociator is designed to separate or "crack" anhydrous ammonia into its constituent components; to "dissociate" the elements from each other. The resulting gas consists of 25% nitrogen and 75% hydrogen. This gas is used in the bright annealing of high or low carbon steels, chrome tool steels, stainless steels, nickel alloys, copper and copper alloys where a high hydrogen content is necessary in the furnace atmosphere. It's also used to provide an environment in which the sintering of powdered metal is done or to copper braze ferrous metals or to braze stainless steel without having to use special brazing alloys or brazing fluxes.
Two associated characteristics of ammonia dissociation which are of extreme importance are that clean, metallurgical grade, anhydrous ammonia contains virtually no water and no oxygen. When ammonia vapor is dissociated the resulting gas mixture is extremely dry, with a dew point of typically -40 F to -60 F. Gas this dry usually requires no further dehydration prior to use and the absence of oxygen ensures the prevention of scale and discoloration on the finished product.
A Thermal Dynamix ammonia dissociator is a remarkably simple, durable and efficient machine which achieves virtually 100% dissociation of a clean, dry supply of anhydrous ammonia with very few moving parts and only the energy necessary to complete the dissociation process.
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