US 2017/0029344 A1

Device and method for producing fertilizer from the exhaust gases of a production system

(22) 08.04.2015

(43) 02.02.2017

(57) A device and a method produces fertilizer from the exhaust gases of a production system, for example a system for producing cement. The exhaust gases are completely converted such that the exhaust gases are not released into the environment. For this purpose, the exhaust gases are introduced directly into the device from the production system. Exhaust gases such as NOx and/or SO2 are first oxidized in the device and then reprocessed into NH4NO3 or (NH4)2SO4. CO2 is reprocessed into NH4HCO3 in the device while nitrogen is converted into ammonia, and the ammonium, among others, is used to produce NH4HCO3 from CO2.

(71) Heinz Tischmacher, Plankstadt (DE)

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