Study of NO storage and reduction on LNT by micro bench-flow reactor

Joo Wung Yoon; Seung Kwon Hwang; In Goo Hwang; Simsoo Park; Jin Ha Lee; Gwon Koo Yeo

doi:10.3795/KSME-B.2011.35.8.789

Study of NO storage and reduction on LNT by micro bench-flow reactor

Joo Wung Yoon, Seung Kwon Hwang, In Goo Hwang, Simsoo Park, Jin Ha Lee, Gwon Koo Yeo

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

We carry out an experimental investigation to analyze the basic performance of NO(nitric oxide) storage in a lean phase and also analyze the NO reduction achieved by the spraying of reducing agents in the rich phase of the exhaust gas in an LNT(Lean NOx Trap). This is an after-treatment system used to reduce the NOx emissions from a diesel engine. If the stored NO is reduced, we measure the outlet concentration downstream of the LNT. The test LNT material used in the experiments is commercial LNT. After being canned into stainless-steel(SUS304), it was built in a micro bench-flow reactor. Compositions of feed gases, three heated and three no heated gases were sprayed upstream of the LNT to analyze the characteristics. We use various temperatures and space velocities as response variables.

Original language	English
Pages (from-to)	789-798
Number of pages	10
Journal	Transactions of the Korean Society of Mechanical Engineers, B
Volume	35
Issue number	8
DOIs	https://doi.org/10.3795/KSME-B.2011.35.8.789
Publication status	Published - 2011 Aug

Keywords

De-NQx
LNT(Lean NOx Trap)
Micro-Bench flow reacton
NO(nitric oxide)
Reducing agent
Storage efficiency

ASJC Scopus subject areas

Mechanical Engineering

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10.3795/KSME-B.2011.35.8.789

Cite this

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title = "Study of NO storage and reduction on LNT by micro bench-flow reactor",

abstract = "We carry out an experimental investigation to analyze the basic performance of NO(nitric oxide) storage in a lean phase and also analyze the NO reduction achieved by the spraying of reducing agents in the rich phase of the exhaust gas in an LNT(Lean NOx Trap). This is an after-treatment system used to reduce the NOx emissions from a diesel engine. If the stored NO is reduced, we measure the outlet concentration downstream of the LNT. The test LNT material used in the experiments is commercial LNT. After being canned into stainless-steel(SUS304), it was built in a micro bench-flow reactor. Compositions of feed gases, three heated and three no heated gases were sprayed upstream of the LNT to analyze the characteristics. We use various temperatures and space velocities as response variables.",

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author = "Yoon, {Joo Wung} and Hwang, {Seung Kwon} and Hwang, {In Goo} and Simsoo Park and Lee, {Jin Ha} and Yeo, {Gwon Koo}",

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AU - Park, Simsoo

AU - Lee, Jin Ha

AU - Yeo, Gwon Koo

PY - 2011/8

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N2 - We carry out an experimental investigation to analyze the basic performance of NO(nitric oxide) storage in a lean phase and also analyze the NO reduction achieved by the spraying of reducing agents in the rich phase of the exhaust gas in an LNT(Lean NOx Trap). This is an after-treatment system used to reduce the NOx emissions from a diesel engine. If the stored NO is reduced, we measure the outlet concentration downstream of the LNT. The test LNT material used in the experiments is commercial LNT. After being canned into stainless-steel(SUS304), it was built in a micro bench-flow reactor. Compositions of feed gases, three heated and three no heated gases were sprayed upstream of the LNT to analyze the characteristics. We use various temperatures and space velocities as response variables.

AB - We carry out an experimental investigation to analyze the basic performance of NO(nitric oxide) storage in a lean phase and also analyze the NO reduction achieved by the spraying of reducing agents in the rich phase of the exhaust gas in an LNT(Lean NOx Trap). This is an after-treatment system used to reduce the NOx emissions from a diesel engine. If the stored NO is reduced, we measure the outlet concentration downstream of the LNT. The test LNT material used in the experiments is commercial LNT. After being canned into stainless-steel(SUS304), it was built in a micro bench-flow reactor. Compositions of feed gases, three heated and three no heated gases were sprayed upstream of the LNT to analyze the characteristics. We use various temperatures and space velocities as response variables.

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KW - LNT(Lean NOx Trap)

KW - Micro-Bench flow reacton

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KW - Reducing agent

KW - Storage efficiency

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Study of NO storage and reduction on LNT by micro bench-flow reactor

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

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