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公开(公告)号：US20170284252A1
公开(公告)日：2017-10-05
申请号：US15089513
申请日：2016-04-02
CPC分类号： F02D41/0295 , B01D53/9454 , B01D53/9477 , B01D53/9495 , B01D2255/904 , B01D2258/012 , F01N3/0205 , F01N3/043 , F01N3/101 , F01N3/30 , F01N13/0093 , F01N2270/02 , F01N2560/025 , F01N2560/14 , F01N2570/14 , F02D41/1441 , F02D41/1454 , F02D2250/36 , Y02T10/22
摘要： A provision of assemblies and methods for treating an exhaust gas from an internal combustion engine. The treatment method comprises at least two catalyst stages. The exhaust gas is directed to a first stage catalyst. After the first stage catalyst, the exhaust is passed to an inter-catalyst stage comprising an exhaust cooling process and an oxygen enrichment process. Next, the exhaust is passed to a second stage catalyst for reducing carbon monoxide, ammonia and hydrocarbon concentration in the exhaust gas, before exiting via an outlet.
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公开(公告)号：US09816417B2
公开(公告)日：2017-11-14
申请号：US15089513
申请日：2016-04-02
CPC分类号： F02D41/0295 , B01D53/9454 , B01D53/9477 , B01D53/9495 , B01D2255/904 , B01D2258/012 , F01N3/0205 , F01N3/043 , F01N3/101 , F01N3/30 , F01N13/0093 , F01N2270/02 , F01N2560/025 , F01N2560/14 , F01N2570/14 , F02D41/1441 , F02D41/1454 , F02D2250/36 , Y02T10/22
摘要： A provision of assemblies and methods for treating an exhaust gas from an internal combustion engine. The treatment method comprises at least two catalyst stages. The exhaust gas is directed to a first stage catalyst. After the first stage catalyst, the exhaust is passed to an inter-catalyst stage comprising an exhaust cooling process and an oxygen enrichment process. Next, the exhaust is passed to a second stage catalyst for reducing carbon monoxide, ammonia and hydrocarbon concentration in the exhaust gas, before exiting via an outlet.
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公开(公告)号：US09849422B1
公开(公告)日：2017-12-26
申请号：US14720929
申请日：2015-05-25
CPC分类号： B01D53/9445 , B01D2251/102 , B01D2255/904 , B01J33/00 , F01N3/02 , F01N3/10 , F01N3/101 , F01N3/20 , F01N3/30 , F01N13/009 , F01N2430/06 , F01N2560/025 , F01N2570/14 , F01N2900/1402 , F02D41/0027 , F02D41/0235
摘要： A provision of assemblies and methods for treating exhaust gases from combustion devices to reduce air contaminants in the exhaust gas. The exhaust from a combustion device is cooled, followed by passing the exhaust through first and second catalytic chambers with an oxygen enrichment means in between the catalytic chambers. The catalytic chambers comprise at least one catalyst that substantially reduces nitrogen oxides or carbon monoxide or both.
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