Catalyst system of the structured type

摘要

PCT No. PCT/NL93/00234 Sec. 371 Date Jul. 21, 1995 Sec. 102(e) Date Jul. 21, 1995 PCT Filed Nov. 5, 1993 PCT Pub. No. WO94/19902 PCT Pub. Date May 11, 1994A catalyst system of the structured type is described wherein a structured support is covered with a layer of molecular sieve crystals having substantially the same orientation relative to the support surface. Also disclosed is a reactor in which the catalyst system may be disposed and a method for the selective reduction of nitrogen oxides utilizing a compound comprising a NH group.