Formaldehyde Reaction Pathways over Emission Control Catalysts

Paper #:
  • 2018-01-1274

Published:
  • 2018-04-03
Author(s):
Affiliated:
Abstract:
Formaldehyde is a HAP specifically targeted for reduction in the US EPA RICE NESHAP rule. Both SCR and PGM-based oxidation catalysts are highly active for formaldehyde oxidation and can enable attainment of the required high removal efficiencies. However, when designing the catalyst system for emissions control on a natural gas firing engine, it is necessary, under certain conditions, to account for the inhibition effect that unburned hydrocarbons (specifically alkenes and alkanes) present in the exhaust gas have on the formaldehyde oxidation rate. This paper will present experimental results that demonstrate that this apparent inhibition effect is due to the catalytic partial oxidation of the unburned hydrocarbons to formaldehyde as a primary product. This formaldehyde formation pathway, which can have an appreciable effect on the catalyst's net removal efficiency for formaldehyde, needs to be considered in the catalyst system design to assure emissions compliance.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Attention: This item is not yet published. Pre-Order to be notified, via email, when it becomes available.
Select
Price
List
Download
$22.00
Mail
$22.00
Members save up to 36% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Technical Paper / Journal Article
1990-02-01
Technical Paper / Journal Article
1990-02-01
Training / Education
2005-11-15
Technical Paper / Journal Article
1981-09-01
Training / Education
2007-03-01
Article
2017-07-26