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

Abstract

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.

Inventors:
;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1281139
Patent Number(s):
9,403,156
Application Number:
14/662,946
Assignee:
UT-BATTELLE, LLC (Oak Ridge, TN)
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Mar 19
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING

Citation Formats

Narula, Chaitanya K., and Yang, Xiaofan. Zeolite-based SCR catalysts and their use in diesel engine emission treatment. United States: N. p., 2016. Web.
Narula, Chaitanya K., & Yang, Xiaofan. Zeolite-based SCR catalysts and their use in diesel engine emission treatment. United States.
Narula, Chaitanya K., and Yang, Xiaofan. Tue . "Zeolite-based SCR catalysts and their use in diesel engine emission treatment". United States. https://www.osti.gov/servlets/purl/1281139.
@article{osti_1281139,
title = {Zeolite-based SCR catalysts and their use in diesel engine emission treatment},
author = {Narula, Chaitanya K. and Yang, Xiaofan},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {8}
}

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Works referenced in this record:

Identification of Extra-Framework Species on Fe/ZSM-5 and Cu/ZSM-5 Catalysts Typical Microporous Molecular Sieves with Zeolitic Structure
journal, September 2002


Extruded Zeolite Catalysts for Lean Exhaust Application
conference, April 2005

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  • SAE 2005 World Congress & Exhibition, SAE Technical Paper Series
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The development of a model capable of predicting diesel lean NOx catalyst performance under transient conditions
journal, September 1996

  • Ansell, G. P.; Bennett, P. S.; Cox, J. P.
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