Sustained concentration and temperature oscillations in a diesel oxidation catalyst

Sustained concentration and temperature oscillations in a diesel oxidation catalyst Chemical Engineering Journal 336 (2018) 531–543 Contents lists available at ScienceDirect Chemical Engineering Journal journal homepage: www.elsevier.com/locate/cej Sustained concentration and temperature oscillations in a diesel oxidation catalyst ⁎ ⁎ Po-Yu Peng, Michael P. Harold , Dan Luss Department of Chemical & Biomolecular Engineering, University of Houston, Houston 77204-4004, United States GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: A diesel oxidation catalyst (DOC) comprising an alumina-based washcoat of Platinum (Pt) and Palladium (Pd) is Hydrocarbon trap used to catalyze the oxidation of a diesel exhaust containing hydrocarbons (HCs) with sufficiently high con- Beta-zeolite version. A large-pore zeolite such as Beta (BEA) is added to the DOC to trap diesel exhaust hydrocarbons during Diesel oxidation catalyst the cold start. There is a need to gain insight on how BEA affects the performance of the HC light-off and of the Oscillations transient HC oxidation. We conducted steady-state and transient trapping experiments involving the n-dodecane Dodecane in order to enable improved trap design and operating strategy. Simultaneous spatio-temporal measurements of Oxidation concentration and temperature, respectively by spatially-resolved mass spectrometry and coherent optical fre- Platinum quency domain reflectometer, provide detailed insight into the reactor dynamics. Steady-state experiments re- veal unexpected periodic oscillations http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chemical Engineering Journal Elsevier

Sustained concentration and temperature oscillations in a diesel oxidation catalyst

Loading next page...
 
/lp/elsevier/sustained-concentration-and-temperature-oscillations-in-a-diesel-VErIzYKjD0
Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
1385-8947
eISSN
1873-3212
D.O.I.
10.1016/j.cej.2017.12.023
Publisher site
See Article on Publisher Site

Abstract

Chemical Engineering Journal 336 (2018) 531–543 Contents lists available at ScienceDirect Chemical Engineering Journal journal homepage: www.elsevier.com/locate/cej Sustained concentration and temperature oscillations in a diesel oxidation catalyst ⁎ ⁎ Po-Yu Peng, Michael P. Harold , Dan Luss Department of Chemical & Biomolecular Engineering, University of Houston, Houston 77204-4004, United States GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: A diesel oxidation catalyst (DOC) comprising an alumina-based washcoat of Platinum (Pt) and Palladium (Pd) is Hydrocarbon trap used to catalyze the oxidation of a diesel exhaust containing hydrocarbons (HCs) with sufficiently high con- Beta-zeolite version. A large-pore zeolite such as Beta (BEA) is added to the DOC to trap diesel exhaust hydrocarbons during Diesel oxidation catalyst the cold start. There is a need to gain insight on how BEA affects the performance of the HC light-off and of the Oscillations transient HC oxidation. We conducted steady-state and transient trapping experiments involving the n-dodecane Dodecane in order to enable improved trap design and operating strategy. Simultaneous spatio-temporal measurements of Oxidation concentration and temperature, respectively by spatially-resolved mass spectrometry and coherent optical fre- Platinum quency domain reflectometer, provide detailed insight into the reactor dynamics. Steady-state experiments re- veal unexpected periodic oscillations

Journal

Chemical Engineering JournalElsevier

Published: Mar 15, 2018

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 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

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

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off