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US Patent 7275366 High thermal efficiency Selective Catalytic Reduction (SCR) system

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
72753661
Patent Inventor Names
Salvador Caro1
John G. Powell1
Henning Ottsen1
Date of Patent
October 2, 2007
1
Patent Application Number
109417311
Date Filed
September 14, 2004
1
Patent Citations Received
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US Patent 12129559 Test station assemblies for monitoring cathodic protection of structures and related methods
2
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US Patent 12012883 Systems and methods for backhaul transportation of liquefied gas and CO
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US Patent 12087002 Systems and methods to determine depth of soil coverage along a right-of-way
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US Patent 12128369 Methods and systems for in-line mixing of hydrocarbon liquids
8
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US Patent 11920504 Scalable greenhouse gas capture systems and methods
9
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Patent Primary Examiner
‌
Thomas Denion
1
Patent abstract

An emissions control system utilizes otherwise wasted heat to efficiently reduce emissions in a main exhaust flow. Heat stored in exhaust from an auxiliary generator (i.e., auxiliary exhaust) may be used to convert urea to ammonia used by a Selective Catalytic Reducer (SCR) system, and/or the auxiliary exhaust may be used to heat the main exhaust flow before entry into an SCR. Additionally, a heat exchanger may be used to transfer heat from a hot clean flow out of the SCR, to the main exhaust flow entering the SCR. Previously, mobile emissions control systems have not used SCR systems to reduce NOx because of the cost and space required for heater fuel. The efficient use of otherwise wasted heat reduces fuel cost and fuel storage requirements, and thereby makes an SCR systems feasible for use in mobile emissions control systems.

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