Model-based Optimization of Advanced SCR Substrates

Koltsakis, G. C.; Stavros, Skarlis; Thomas, N. Richard; Karamitros, Dimitrios; Claus, Vogt; Sakashita, Satoshi

doi:10.20485/jsaeijae.6.2_45

IJAE

2015

DOI: 10.20485/jsaeijae.6.2_45

|View full text |Cite

Model-based Optimization of Advanced SCR Substrates

G. C. Koltsakis

Skarlis Stavros²,

N. Richard Thomas

et al.

Abstract: Innovative high porosity SCR substrates are targeting at optimum utilization of high catalyst amounts without increasing pressure drop. Mathematical modeling of such technologies is challenging, requiring accurate description of both chemistry and mass transfer inside the active material. In this work, a systematic experimental study is conducted towards calibrating a comprehensive commercial simulation model for a Cu-zeolite SCR catalyst. Based on the calibrated model, it is possible to evaluate different sub… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2022

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Effect of a Plasma Burner on NOx Reduction and Catalyst Regeneration in a Marine SCR System

Jang

Ahn

et al. 2022

Energies

View full text Add to dashboard Cite

The problem of environmental pollution by the combustion of fossil fuels in diesel engines, to which NOx emission is a dominant culprit, has accelerated global environmental pollution and global and local health problems such as lung disease, cancer, and acid rain. Among various De-NOx technologies, SCR (Selective Catalytic Reduction) systems are known to be the most effective technology for actively responding to environmental regulations set by the IMO (International Maritime Organization) in marine diesel applications. The ammonia mixes with the exhaust gas and reacts with the NOx molecules on the catalyst surface to form harmless N2 and H2O. However, since the denitrification efficiency of NOx can be rapidly changed depending on the operating temperature from 250 °C to 350 °C at 0.1% sur contents of the catalyst used in the SCR, a device capable of controlling the exhaust gas temperature is essential for the normal operation of the catalyst. In addition, when the catalyst is exposed to SOx in a low exhaust gas temperature environment, the catalyst is unable to reduce the oxidation reaction of the catalyst, thereby remarkably lowering the De-NOx efficiency. However, if the exhaust gas temperature is set to a high temperature of 360–410 °C, the poisoned catalyst can be regenerated through a reduction process, so that a burner capable of producing a high temperature condition is essential. In this study, a plasma burner system was applied to control the exhaust gas temperature, improving the De-NOx efficiency from the engine and regenerating catalysts from PM (Particulate Matter), SOOT and ABS (ammonia bisulfate), i.e., catalyst poisoning. Through the burner system, the optimum De-NOx performance was experimentally investigated by controlling the temperature to the operating region of the catalyst, and it was shown that the regeneration efficiency in each high temperature (360/410 °C) environment was about 95% or more as compared with the initial performance. From the results of this study, it can be concluded that this technology can positively contribute to the enhancement of catalyst durability and De-NOx performance.

show abstract

Effect of a Plasma Burner on NOx Reduction and Catalyst Regeneration in a Marine SCR System

Jang

Ahn

et al. 2022

Energies

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Model-based Optimization of Advanced SCR Substrates

Cited by 1 publication

References 20 publications

Effect of a Plasma Burner on NOx Reduction and Catalyst Regeneration in a Marine SCR System

Effect of a Plasma Burner on NOx Reduction and Catalyst Regeneration in a Marine SCR System

Contact Info

Product

Resources

About