| 摘要 |
The inventive method for providing ammonia (NH3) in a flow of exhaust gas (1) of an internal combustion engine (2) comprises the following steps: a) generating nitrogen monoxide (NO) with a plasma generator (4); b) reversibly storing at least a portion of the nitrogen monoxide (NO); c) reducing at least a portion of the stored and/or generated nitrogen monoxide (NO) to form ammonia (NH3) in a first flow of gas (3), and; d) mixing the first flow of gas (3) with the flow of exhaust gas (1). An inventive device and inventive method for reducing nitrogen oxides advantageously increase the efficiency of an on-board plasma-assisted generation of ammonia, particularly of mobile uses such as motor vehicles and, in comparison to prior art devices and methods, reduces the consumption of fuel required therefor.
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