<p>Zeolite catalysts and 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.</p>
申请公布号
EP2117707(A1)
申请公布日期
2009.11.18
申请号
EP20080730852
申请日期
2008.02.27
申请人
BASF CATALYSTS LLC
发明人
XUE, WEN-MEI;BOORSE, R. SAMUEL;JAGLOWSKI, WILLIAM M.;KOERMER, GERALD STEPHEN;MOINI, AHMAD;PATCHETT, JOSEPH A.;BURK, PATRICK;DETTLING, JOSEPH CHARLES;CAUDLE, MATTHEW TYLER