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Title: Zeolite-based SCR catalysts and their use in diesel engine emission treatment

Patent ·
OSTI ID:1281139
;

A catalyst comprising a zeolite loaded with copper ions and at least one trivalent metal ion other than Al.sup.+3, wherein the catalyst decreases NO.sub.x emissions in diesel exhaust. The trivalent metal ions are selected from, for example, trivalent transition metal ions, trivalent main group metal ions, and/or trivalent lanthanide metal ions. In particular embodiments, the catalysts are selected from Cu--Fe-ZSM5, Cu--La-ZSM-5, Fe--Cu--La-ZSM5, Cu--Sc-ZSM-5, and Cu--In-ZSM5. The catalysts are placed on refractory support materials and incorporated into catalytic converters.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-BATTELLE, LLC (Oak Ridge, TN)
Patent Number(s):
9,403,156
Application Number:
14/662,946
OSTI ID:
1281139
Resource Relation:
Patent File Date: 2015 Mar 19
Country of Publication:
United States
Language:
English

References (61)

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