Exhaust purification with on-board ammonia production

Robel, Wade J; Driscoll, James Joshua; Coleman, Gerald N

Title: Exhaust purification with on-board ammonia production

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Abstract

A system of ammonia production for a selective catalytic reduction system is provided. The system includes producing an exhaust gas stream within a cylinder group, wherein the first exhaust gas stream includes NOx. The exhaust gas stream may be supplied to an exhaust passage and cooled to a predetermined temperature range, and at least a portion of the NOx within the exhaust gas stream may be converted into ammonia.

Inventors:

Robel, Wade J ^[1]; Driscoll, James Joshua ^[2]; Coleman, Gerald N ^[3]

Peoria, IL
Dunlap, IL
Peterborough, GB

Issue Date:: 2008-05-13

Research Org.:: Caterpillar Inc., Deerfield, IL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 981838

Patent Number(s):: 7371353

Assignee:: Caterpillar Inc. (Peoria, IL)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

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F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F01N13/009 - {having two or more separate purifying devices arranged in series}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
Y02T10/12 - Technologies for the improvement of indicated efficiency of a conventional ICE

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F01N2240/02 - a heat exchanger
F01N3/2066 - {Selective catalytic reduction [SCR]}
F01N13/0093 - {the purifying devices are of the same type}

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D53/9431 - {Processes characterised by a specific device}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01C - AMMONIA
C01C1/02 - Preparation, {purification} or separation of ammonia

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F01N2610/02 - the substance being ammonia or urea

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DOE Contract Number:: FC05-00OR22806

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Robel, Wade J, Driscoll, James Joshua, and Coleman, Gerald N. Exhaust purification with on-board ammonia production.  United States: N. p., 2008. 
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                    Robel, Wade J, Driscoll, James Joshua, & Coleman, Gerald N. Exhaust purification with on-board ammonia production.  United States.

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                    Robel, Wade J, Driscoll, James Joshua, and Coleman, Gerald N. Tue .  
        "Exhaust purification with on-board ammonia production".  United States.  https://www.osti.gov/servlets/purl/981838.

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@article{osti_981838,

  title        = {Exhaust purification with on-board ammonia production},

  author       = {Robel, Wade J and Driscoll, James Joshua and Coleman, Gerald N},

  abstractNote = {A system of ammonia production for a selective catalytic reduction system is provided. The system includes producing an exhaust gas stream within a cylinder group, wherein the first exhaust gas stream includes NOx. The exhaust gas stream may be supplied to an exhaust passage and cooled to a predetermined temperature range, and at least a portion of the NOx within the exhaust gas stream may be converted into ammonia.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2008},

  month        = {5}

}

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