초록 ▼

A structured catalyst for selective reduction of nitrogen oxides with ammonia using an ammonia-supplying compound. The catalyst is preferably used for exhaust gas treatment of diesel vehicles powered by diesel motors. The catalyst is characterized by the fact that it contains a reduction catalyst fo

A structured catalyst for selective reduction of nitrogen oxides with ammonia using an ammonia-supplying compound. The catalyst is preferably used for exhaust gas treatment of diesel vehicles powered by diesel motors. The catalyst is characterized by the fact that it contains a reduction catalyst for selective reduction of nitrogen oxides with ammonia and a hydrolysis catalyst for the hydrolysis of urea, where the hydrolysis catalyst is applied in the form of a coating onto the reduction catalyst. By this arrangement of the two catalytic functions in one catalyst the exhaust gas system can be made very compactly and space saving. Moreover, advantageous synergistic effects result from the direct contact of the hydrolysis catalyst and the reduction catalyst.

대표청구항 ▼

A structured catalyst for selective reduction of nitrogen oxides with ammonia using an ammonia-supplying compound. The catalyst is preferably used for exhaust gas treatment of diesel vehicles powered by diesel motors. The catalyst is characterized by the fact that it contains a reduction catalyst fo

A structured catalyst for selective reduction of nitrogen oxides with ammonia using an ammonia-supplying compound. The catalyst is preferably used for exhaust gas treatment of diesel vehicles powered by diesel motors. The catalyst is characterized by the fact that it contains a reduction catalyst for selective reduction of nitrogen oxides with ammonia and a hydrolysis catalyst for the hydrolysis of urea, where the hydrolysis catalyst is applied in the form of a coating onto the reduction catalyst. By this arrangement of the two catalytic functions in one catalyst the exhaust gas system can be made very compactly and space saving. Moreover, advantageous synergistic effects result from the direct contact of the hydrolysis catalyst and the reduction catalyst. ditioned preforms with at least one robot with universal gripper assemblies out of the common tray unit, (d) transferring at least one fraction of conditioned preforms into at least one stretch blow molding units, (e) stretch blow molding the at least one fraction of conditioned preforms in at least one blow molding units in at least one row each of blow mold cavities into hollow articles at a freely programmable time interval, (f) lifting the at least one fraction of hollow articles out at least one stretch blow molding units with at least one robot with universal gripper assemblies, (g) releasing at least one fraction of hollow articles onto at least one oriented discharge units, (h) returning at least one robot with universal gripper assemblies to the common tray unit to pick up at least one other fraction of conditioned preforms, (i) transferring at least one other fraction of conditioned preforms through the same processing units as at least one fraction of conditioned preforms, and (j) returning to a waiting position at the preform molding and tray unit prior to completion of the preform molding cycle. 7. Method in accordance with claim 3, further comprising the step of spacing all processing units individually to allow turning and adding units as the molding process requires. 8. Method in accordance with claim 3, further comprising the steps of spacing the center rows of the