Exhaust treatment method and apparatus having particulate filters and scr
AssigneeCorning Incorporated
InventorsDouglas Munroe Beall, Sam George, Mahesh Govindareddy, Achim Karl-Erich Heibel
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Abstract
An exhaust treatment method and apparatus for treating an exhaust stream flowing through an exhaust line housing in a downstream direction, the apparatus comprising a first particulate filter, an SCR unit, and a second particulate filter downstream of the SCR unit, all serially positioned in the exhaust line.
Claims22
An exhaust treatment apparatus for treating an exhaust stream flowing through an exhaust line housing in a downstream direction from an upstream location of the exhaust line housing to a downstream location, the exhaust treatment apparatus comprising:
- a first particulate filter;
- an SCR unit disposed downstream of the first particulate filter;
- and
- a second particulate filter disposed downstream of the SCR unit;
- wherein the first particulate filter, the SCR unit, and the second particulate filter are disposed serially in the exhaust line housing and are configured to allow the exhaust stream to flow serially through the first particulate filter, subsequently through the SCR unit, and subsequently through the second particulate filter.
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Dependencies are inferred from the claim text.