A method of converting nitrogen oxides in a gas stream to nitrogen comprises contacting the nitrogen oxides with a nitrogenous reducing agent in the presence of a non-zeolite base metal catalyst consisting of: (a) at least one transition metal dispersed on a mixed oxide or composite oxide or a mixture thereof as support material consisting of cerium and zirconium; or (b) cerium oxide and zirconium oxide as single oxides or a composite oxide thereof or a mixture of the single oxides and the composite oxide dispersed on an inert oxide support material, whereon is dispersed at least one transition metal.
申请公布号
EP2170490(A1)
申请公布日期
2010.04.07
申请号
EP20080762594
申请日期
2008.06.25
申请人
JOHNSON MATTHEY PUBLIC LIMITED COMPANY
发明人
COLLIER, JILLIAN ELAINE;LAROZE, SYLVIE CECILE;RAJARAM, RAJ RAO;PREST, DAVID WILLIAM