Non-catalytic reduction of NO in diesel exhaust with the addition of methylamine

The present study investigated a chemical gas-phase process capable of reducing nitric oxides in diesel engine exhaust. In this process, monomethylamine (CH 3NH 2) was added to the exhaust gas and the chemical reactions of NO decomposition took place in the exhaust gas. In the present experiment, th...

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Published inJSAE review Vol. 21; no. 4; pp. 561 - 566
Main Authors Nakanishi, Yasufumi, Yoshihara, Yoshinobu, Nishiwaki, Kazuie
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.10.2000
Subjects
Amines
Catalysis
Exhaust gases
Fuel additives
Nitrogen oxides
Pyrolysis
Reduction
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Summary:The present study investigated a chemical gas-phase process capable of reducing nitric oxides in diesel engine exhaust. In this process, monomethylamine (CH 3NH 2) was added to the exhaust gas and the chemical reactions of NO decomposition took place in the exhaust gas. In the present experiment, the effect of coexisting constituents in the diesel exhaust on NO decomposition was examined. Results show that the coexisting gases in the exhaust have no adverse effects on NO removal by methylamine, whereas particulate matter, such as soot, inhabit NO removal. However, 70% of NO x removal was achieved even for exhaust containing particulate matter at the space velocity of approximately 6000 −1, at which actual selective catalytic reduction systems are operated.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0389-4304
1879-0976
DOI:10.1016/S0389-4304(00)00079-5