Effect of hydrocarbon species on no oxidation over diesel oxidation catalysts

Irani, Karishma; Epling, William S.; Blint, Richard J.

doi:10.1016/j.apcatb.2009.08.022

Cited by 65 publications

(44 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…1. C 3 H 6 oxidation was negatively affected in the presence of NO in the feed stream as expected, with the light-off temperature increased by around 60°C due to competitive adsorption of NO and C 3 H 6 for Pt sites [3,4]. When the temperature was below 200°C, NO oxidation to NO 2 was negatively affected by the presence of C 3 H 6 , with NO 2 observed only once most of the C 3 H 6 is oxidized.…”

Section: Resultsmentioning

confidence: 52%

“…When the temperature was below 200°C, NO oxidation to NO 2 was negatively affected by the presence of C 3 H 6 , with NO 2 observed only once most of the C 3 H 6 is oxidized. This is because any NO 2 formed can be consumed by C 3 H 6 [3]. However, between 200 and 250°C, there was a slight improvement in NO conversion to NO 2 in the presence of C 3 H 6 and then inhibition was again observed between 250 and 320°C.…”

Section: Resultsmentioning

confidence: 68%

“…DOCs commonly consist of Pt, due to its NO, CO and HC oxidation ability, supported on high surface area materials such as Al 2 O 3 . In terms of NO, CO and HC oxidation over a Pt/Al 2 O 3 DOC, the oxidation reactions are mutually inhibited by one another due to competitive adsorption on the same active sites [3,4]. Furthermore, the reaction between product NO 2 and HC/CO is catalytically more favorable than that with O 2 , which results in little to no net NO 2 made in the presence of CO and HC [4,5].…”

Section: Introductionmentioning

confidence: 96%

See 2 more Smart Citations

NO Oxidation Inhibition by Hydrocarbons over a Diesel Oxidation Catalyst: Reaction Between Surface Nitrates and Hydrocarbons

Luo

Epling

2011

Catal Lett

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 52%

Section: Resultsmentioning

confidence: 68%

Section: Introductionmentioning

confidence: 96%

See 1 more Smart Citation

NO Oxidation Inhibition by Hydrocarbons over a Diesel Oxidation Catalyst: Reaction Between Surface Nitrates and Hydrocarbons

Luo

Epling

2011

Catal Lett

Self Cite

View full text Add to dashboard Cite

show abstract

“…Experimental studies of HC inhibition on NO oxidation has been reported in literature by using a number of HC compounds such as C3H6 [9,10], C3H8 [11], Dodecane [11,12] and mxylene [12]. Among them, C3H6 is often used as the model HC compounds for DOC studies.…”

Section: Introductionmentioning

confidence: 99%

“…Among them, C3H6 is often used as the model HC compounds for DOC studies. The mechanism of C3H6 inhibition by competitive adsorption on the active sites [10] as well as C3H6 reaction with NO2 to NO [9,12] have been proposed in literature.…”

Section: Introductionmentioning

confidence: 99%

Kinetic Modeling of C3H6 Inhibition on NO Oxidation over Pt Catalyst

Azis

Creaser

2016

Bull. Chem. React. Eng. Catal.

View full text Add to dashboard Cite

Exhaust after treatment for lean burn and diesel engine is a complex catalytic system that consists of a number of catalytic units. Pt/Al2O3 is often used as a model Diesel Oxidation Catalyst (DOC) that plays an important role to facilitate oxidation of NO to NO2. In the present study, we proposed a detailed kinetic model of NO oxidation as well as low temperature C3H6 inhibition to simulate temperatureprogrammed reaction (TPR) data for NO oxidation over Pt/Al2O3. A steady-state microkinetic model based on Langmuir-Hinshelwood mechanism for NO oxidation was proposed. In addition, low temperature C3H6 inhibition was proposed as a result of site blocking as well as surface nitrite consumption. The model can explain the experimental data well over the studied temperature range.

show abstract

Aftertreatment Technologies: State‐of‐the‐Art and Emerging Technologies

Fino

Russo

Bensaid

2015

Handbook of Clean Energy Systems

View full text Add to dashboard Cite

In recent years increasing attention has been paid to the emissions from gasoline diesel engines. Meeting the emission levels imposed by legislation requires the development of a number of critical technologies to fulfill these very stringent limits. This article is focused on these innovative technologies with special reference to catalytic reactors for carbon monoxide ( CO ), hydrocarbons ( HC ), oxides of nitrogen (NO x ), particulate matter ( PM ), removals for gasoline and diesel engines.

show abstract

Effect of hydrocarbon species on no oxidation over diesel oxidation catalysts

Cited by 65 publications

References 35 publications

NO Oxidation Inhibition by Hydrocarbons over a Diesel Oxidation Catalyst: Reaction Between Surface Nitrates and Hydrocarbons

NO Oxidation Inhibition by Hydrocarbons over a Diesel Oxidation Catalyst: Reaction Between Surface Nitrates and Hydrocarbons

Kinetic Modeling of C3H6 Inhibition on NO Oxidation over Pt Catalyst

Aftertreatment Technologies: State‐of‐the‐Art and Emerging Technologies

Contact Info

Product

Resources

About