Patent ID: 9731976
Date: 2017-08-15
CPC Classifications: B01D,B01J,C01C,F01N,Y02P,Y02T

Claim:
1. A method for continuously generating ammonia for introducing into an exhaust gas line, wherein the ammonia is generated from a solution of an ammonia precursor substance using an ammonia gas generator, the generator comprising a catalyst unit and a mixing chamber, the catalyst unit comprising a heated catalyst for at least one of decomposing and hydrolysing ammonia precursor substances into ammonia, and the mixing chamber being upstream from the catalyst in a flow direction, the catalyst having a catalyst volume and the mixing chamber having a mixing chamber volume, the method comprising: introducing the solution of the ammonia precursor substance into the mixing chamber together with a carrier gas, the carrier gas and an optionally further additional energy source having a combined specific enthalpy flow of 8000-50000 kJ/kg with respect to a mass flow of the solution, such that an end face loading of the catalyst is 3.0 to 15 g/(h*cm