Hostname: page-component-7479d7b7d-68ccn Total loading time: 0 Render date: 2024-07-11T07:21:04.267Z Has data issue: false hasContentIssue false
  • English
  • Français

Emission Control Catalyst Derived from Mesoporous Molecular Sieves$

Published online by Cambridge University Press:  10 February 2011

Partha P. Paul ,
Michael A. Miller ,
Martin J. Heimrich  and
Stuart T. Schwab
Partha P. Paul
Affiliation:
Materials Engineering Department, Southwest Research Institute, San Antonio, Texas.
Michael A. Miller
Affiliation:
Materials Engineering Department, Southwest Research Institute, San Antonio, Texas.
Martin J. Heimrich
Affiliation:
Materials Engineering Department, Southwest Research Institute, San Antonio, Texas.
Stuart T. Schwab
Affiliation:
Materials Engineering Department, Southwest Research Institute, San Antonio, Texas.
Get access

Abstract

A lean NOx catalyst is needed to control NOx emissions generated by oxygen-rich combustion processes to obtain higher fuel economy. We have developed such a catalyst using modified mesoporous molecular sieves (MCM-41). An iron(II)-complex impregnated MCM-41 has been synthesized which has been further treated with [Pd(NH3)4]Cl2. This treatment resulted in further exchange of Na+ ions of the molecular sieves with Pd(NH3)42+ thus forming Catalyst A. The catalytic activity towards NOx, CO and HC was studied using simulated exhaust gas, as well as engine exhaust gas.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 431: Symposium P – Microporous and Macroporous Materials , 1996 , 117
Copyright
Copyright © Materials Research Society 1996

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

$

Patent Pending.

References

1. Berks, B. C., Fergusan, S. J., Moir, J. W. B., Richardson, D. J., Biochim.et Biophys. Acta, 1995, 1232, 97–173.Google Scholar
2. a) Hochstein, L. I., and Tomlinson, G. A., Ann. Rev. Microbiol., 1988, 42, 231–261 and references cited therein. b) R. Knowles, Microbiol. Rev., 1982, 46, 43.Google Scholar
3. Reedijk, J., Bioinorganic Catalysis, (Marcel Dekker, Inc., 1993) and references therein.Google Scholar
4. a) Herron, N. in Biomimetic Polymers, edited by Gebelein, C. G. (Plenum Press, New York, 1990). b) K. J. Balkus, Jr., A. G. Gabrielov, S. L. Bell, F. Bedioui, L. Roué, and J. Devynck, Inorg. Chem., 33, 67 (1994).Google Scholar
5. Beck, J. S., et. al., WO Patent 91/11390.Google Scholar
6. Corma, A., Forens, V., Garcia, H., Miranda, M. A. and Sabater, M. J., J. Am. Chem. Soc., 116, 9767 (1994).Google Scholar
7. Developed at Southwest Research Institute.Google Scholar
8. Pouchart, C. J., The Aldrich Library of Infrared Spectra, 3rd ed. (Aldrich Chemical, Milwaukee, Wi, 1981).Google Scholar