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

✍ Scribed by Yasufumi Nakanishi; Yoshinobu Yoshihara; Kazuie Nishiwaki

• Book ID: 104341956
• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 266 KB
• Volume: 21
• Category: Article
• ISSN: 0389-4304
• DOI: 10.1016/s0389-4304(00)00079-5

✦ Synopsis

The present study investigated a chemical gas-phase process capable of reducing nitric oxides in diesel engine exhaust. In this process, monomethylamine (CH NH ) was added to the exhaust gas and the chemical reactions of NO decomposition took place in the exhaust gas. In the present experiment, the e!ect of coexisting constituents in the diesel exhaust on NO decomposition was examined. Results show that the coexisting gases in the exhaust have no adverse e!ects on NO removal by methylamine, whereas particulate matter, such as soot, inhabit NO removal. However, 70% of NO V removal was achieved even for exhaust containing particulate matter at the space velocity of approximately 6000 h, at which actual selective catalytic reduction systems are operated.