Aftertreatment System for Simultaneous Emissions Control in Stationary Rich Burn Engines

a technology of aftertreatment system and burn engine, which is applied in the direction of separation process, arsenic compound, silicon compound, etc., can solve problems such as affecting the ability to operate the engin

Inactive Publication Date: 2015-11-05
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The system effectively reduces emissions, enabling rich-burn engines to operate within a wider range while meeting emissions regulations, thereby exploiting the advantages of rich-burn engines that were previously limited by emissions standards.

Problems solved by technology

The air / fuel proportion window is relatively narrow, thus hindering the ability to operate the engine at a richer burn that would reduce NOx emissions.

Method used

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  • Aftertreatment System for Simultaneous Emissions Control in Stationary Rich Burn Engines
  • Aftertreatment System for Simultaneous Emissions Control in Stationary Rich Burn Engines
  • Aftertreatment System for Simultaneous Emissions Control in Stationary Rich Burn Engines

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Embodiment Construction

[0015]FIG. 1 illustrates exemplary system 100, including engine 110 and catalyst system 111, that may be implemented according to an embodiment. Note that the entire system 100 may also be referred to as an “engine”. System 100 is a simplified block diagram that will be used to explain the concepts disclosed herein, and therefore is not to be construed as setting forth any physical requirements or particular configuration required for any embodiment disclosed herein. All components, devices, systems and methods described herein may be implemented with or take any shape, form, type, or number of components, and any combination of any such components that are capable of implementing the disclosed embodiments. All such embodiments are contemplated as within the scope of the present disclosure.

[0016]Engine 110 may be any type of internal combustion engine or any device, component, system that includes an internal combustion component that generates exhaust gases. In an embodiment, engin...

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Abstract

A catalyst system may include a three-way catalyst that may receive exhaust gases from an engine and convert the exhaust gases to first converted exhaust gases. An ammonia slip catalyst may receive the first converted exhaust gases and convert the first converted exhaust gases to second converted exhaust gases. A hydrocarbon oxidation catalyst may receive the second converted exhaust gases and convert the second converted exhaust gases to third converted exhaust gases.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of patent application Ser. No. 13 / 833,528, entitled “Aftertreatment System for Simultaneous Emissions Control in Stationary Rich Burn Engines,” filed Mar. 15, 2013, which is herein incorporated by reference in its entirety for all purposes.TECHNICAL FIELD[0002]The present disclosure relates to emissions controls for internal combustion engines generally and in particular to methods and systems for simultaneous emissions control in stationary rich burn engines.BACKGROUND[0003]Internal combustion engines are ideally operated in a way that the combustion mixture contains air and fuel in the exact relative proportions required for a stoichiometric combustion reaction (i.e., where the fuel is burned completely.) A rich-burn engine may operate with a stoichiometric amount of fuel or a slight excess of fuel, while a lean-burn engine operates with an excess of oxygen (O2) compared to the amount required for stoi...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): F01N3/10F01N3/30B01J35/00
CPCF01N3/103F01N3/101F01N2370/04F01N3/30F01N3/106F01N3/22F01N2570/14F01N2570/18F01N9/00F01N2900/1616Y02T10/12Y02T10/40B01D53/9495
InventorDEVARAKONDA, MARUTHI NARASINGA RAO
OwnerGENERAL ELECTRIC CO