Nox reduction system utilizing pulsed hydrocarbon injection

Brusasco, Raymond M; Penetrante, Bernardino M; Vogtlin, George E; Merritt, Bernard T

Title: Nox reduction system utilizing pulsed hydrocarbon injection

Abstract

Hydrocarbon co-reductants, such as diesel fuel, are added by pulsed injection to internal combustion engine exhaust to reduce exhaust NO.sub.x to N.sub.2 in the presence of a catalyst. Exhaust NO.sub.x reduction of at least 50% in the emissions is achieved with the addition of less than 5% fuel as a source of the hydrocarbon co-reductants. By means of pulsing the hydrocarbon flow, the amount of pulsed hydrocarbon vapor (itself a pollutant) can be minimized relative to the amount of NO.sub.x species removed.

Inventors:

Brusasco, Raymond M ^[1]; Penetrante, Bernardino M ^[2]; Vogtlin, George E ^[3]; Merritt, Bernard T ^[1]

Livermore, CA
San Ramon, CA
Fremont, CA

Issue Date:: 2001-01-01

Research Org.:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

OSTI Identifier:: 873610

Patent Number(s):: 6202407

Assignee:: Regents of University of California (Oakland, CA)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D53/8625 - {Nitrogen oxides}

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F01N13/0097 - {the purifying devices are arranged in a single housing}
F01N2610/02 - the substance being ammonia or urea
F01N2610/03 - the substance being hydrocarbons, e.g. engine fuel
F01N3/2066 - {Selective catalytic reduction [SCR]}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
Y02A50/20 - Air quality improvement or preservation

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

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DOE Contract Number:: W-7405-ENG-48

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: nox; reduction; utilizing; pulsed; hydrocarbon; injection; co-reductants; diesel; fuel; added; internal; combustion; engine; exhaust; reduce; presence; catalyst; 50; emissions; achieved; addition; source; means; pulsing; flow; amount; vapor; pollutant; minimized; relative; species; removed; internal combustion; combustion engine; diesel fuel; engine exhaust; pulsed injection; reduce exhaust; utilizing pulsed; hydrocarbon vapor; carbon vapor; /60/180/

Citation Formats


                    Brusasco, Raymond M, Penetrante, Bernardino M, Vogtlin, George E, and Merritt, Bernard T. Nox reduction system utilizing pulsed hydrocarbon injection.  United States: N. p., 2001. 
        Web.

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                    Brusasco, Raymond M, Penetrante, Bernardino M, Vogtlin, George E, & Merritt, Bernard T. Nox reduction system utilizing pulsed hydrocarbon injection.  United States.

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                    Brusasco, Raymond M, Penetrante, Bernardino M, Vogtlin, George E, and Merritt, Bernard T. Mon .  
        "Nox reduction system utilizing pulsed hydrocarbon injection".  United States.  https://www.osti.gov/servlets/purl/873610.

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@article{osti_873610,

  title        = {Nox reduction system utilizing pulsed hydrocarbon injection},

  author       = {Brusasco, Raymond M and Penetrante, Bernardino M and Vogtlin, George E and Merritt, Bernard T},

  abstractNote = {Hydrocarbon co-reductants, such as diesel fuel, are added by pulsed injection to internal combustion engine exhaust to reduce exhaust NO.sub.x to N.sub.2 in the presence of a catalyst. Exhaust NO.sub.x reduction of at least 50% in the emissions is achieved with the addition of less than 5% fuel as a source of the hydrocarbon co-reductants. By means of pulsing the hydrocarbon flow, the amount of pulsed hydrocarbon vapor (itself a pollutant) can be minimized relative to the amount of NO.sub.x species removed.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2001},

  month        = {1}

}

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Works referenced in this record:

The Effect of Hydrocarbon Composition on Lean NOx Catalysis
conference, October 1997

Collier, Anthony R.; Wedekind, Barbara
International Fuels & Lubricants Meeting & Exposition, SAE Technical Paper Series
https://doi.org/10.4271/973000

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Similar Records

Title: Nox reduction system utilizing pulsed hydrocarbon injection

Abstract

Citation Formats

The Effect of Hydrocarbon Composition on Lean NOx Catalysis conference, October 1997

The Effect of Hydrocarbon Composition on Lean NOx Catalysis
conference, October 1997