Zeolite catalysts, systems and methods for preparing and using zeolite catalysts having the CHA crystal structure are disclosed. The catalysts can be used to remove nitrogen oxides from a gaseous medium across a broad temperature range and exhibit hydrothermal stable at high reaction temperatures. The zeolite catalysts include a zeolite carrier having a silica to alumina ratio from about 15 : 1 to about 256 : 1 and a copper to alumina ratio from about 0.25 : 1 to about 1 : 1.
申请公布号
CA2679590(C)
申请公布日期
2016.06.07
申请号
CA20082679590
申请日期
2008.02.27
申请人
BASF CATALYSTS LLC
发明人
BULL, IVOR;BOORSE, R. SAMUEL;JAGLOWSKI, WILLIAM M.;KOERMER, GERALD STEPHEN;MOINI, AHMAD;PATCHETT, JOSEPH A.;XUE, WEN-MEI;BURK, PATRICK;DETTLING, JOSEPH CHARLES;CAUDLE, MATTHEW TYLER