A comparative study on the activity of metal exchanged MCM22 zeolite in the selective catalytic reduction of NOx

A comparative study on the activity of metal exchanged MCM22 zeolite in the selective catalytic... A series of MCM22 zeolites exchanged with copper and cobalt are studied for the selective catalytic reduction (SCR) of NO with C3H8 and the behavior compared with that of Cu and Co-beta and ZMS5 zeolites. The results show that Co and Cu-MCM22 samples are stable SCR catalysts. These zeolites give the maximum activity at 450°C. Their behavior towards oxygen content in the reactant phase and exchange level of the metal in the catalyst, is qualitatively similar to that of metal exchanged beta and ZSM5 zeolite, but the yields obtained with this zeolite are lower in any case. The infrared studies of adsorbed NO show, contrary to what is occurring in ZSM5 in which only Cu+ sites are observed at low NO partial pressure, that in this condition, Cu+ and Cu2+ species are formed on MCM22. The results indicate that in MCM22, the copper located in the 10 member ring (MR) circular channels behaves similarly to that present in ZSM5, while the Cu present in the 12 MR cavities has a strong tendency to agglomerate forming non active CuO clusters. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

A comparative study on the activity of metal exchanged MCM22 zeolite in the selective catalytic reduction of NOx

Loading next page...
 
/lp/springer_journal/a-comparative-study-on-the-activity-of-metal-exchanged-mcm22-zeolite-WnYB3wdkFe
Publisher
Springer Netherlands
Copyright
Copyright © 1998 by Springer
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/156856798X00131
Publisher site
See Article on Publisher Site

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches

$49/month

Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

$588

$360/year

billed annually
Start Free Trial

14-day Free Trial