发明名称 |
Ultra low power plasma reactor system for automotive NOx emission control |
摘要 |
A sidestream located hyper-plasma reactor having an axially discrete pattern of alternating regions of active and passive electric field along the axial direction. The hyper-plasma reactor has great efficacy in terms of ultra low power consumption and copious production of NO<SUB>x </SUB>converting aldehydes in the absence of NO by applying plasma power only to an air and hydrocarbon mix sidestream gas flow. Only a small fraction (1% to 2%) of plasma power is required as compared to that for a conventional plasma reactor to treat the full exhaust gas stream. The hyper-plasma reactor produces ozone which reacts subsequently with hydrocarbons to produce aldehydes ("ozonolysis"). The sidestream location of the hyper-plasma reactor allows for the full exhaust stream to bypass it, without significantly affecting the overall NO<SUB>x </SUB>conversion performance in the catalytic converter.
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申请公布号 |
US6959538(B2) |
申请公布日期 |
2005.11.01 |
申请号 |
US20020313311 |
申请日期 |
2002.12.06 |
申请人 |
GENERAL MOTORS CORPORATION |
发明人 |
CHO BYONG KWON;SCHMIEG STEVEN JEFFREY;OH SE HYUCK |
分类号 |
F01N3/20;(IPC1-7):F01N3/00 |
主分类号 |
F01N3/20 |
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