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Study of NO storage and reduction on LNT by micro bench-flow reactor
- Authors
- Yoon, J.W.; Hwang, S.K.; Hwang, I.G.; Park, S.; Lee, J.H.; Yeo, G.K.
- Issue Date
- 2011
- Keywords
- De-NQx; LNT(Lean NOx Trap); Micro-Bench flow reacton; NO(nitric oxide); Reducing agent; Storage efficiency
- Citation
- Transactions of the Korean Society of Mechanical Engineers, B, v.35, no.8, pp.789 - 798
- Indexed
- SCOPUS
KCI
- Volume
- 35
- Number
- 8
- Start Page
- 789
- End Page
- 798
- ISSN
- 1226-4881
- 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. © 2011 The Korean Society of Mechanical Engineers.
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