Nonthermal plasma processor utilizing additive-gas injection and/or gas extraction

Rosocha, Louis A.

Title: Nonthermal plasma processor utilizing additive-gas injection and/or gas extraction

Abstract

A device for processing gases includes a cylindrical housing in which an electrically grounded, metal injection/extraction gas supply tube is disposed. A dielectric tube surrounds the injection/extraction gas supply tube to establish a gas modification passage therearound. Additionally, a metal high voltage electrode circumscribes the dielectric tube. The high voltage electrode is energizable to create nonthermal electrical microdischarges between the high voltage electrode and the injection/extraction gas supply tube across the dielectric tube within the gas modification passage. An injection/extraction gas and a process gas flow through the nonthermal electrical microdischarges within the gas modification passage and a modified process gas results. Using the device contaminants that are entrained in the process gas can be destroyed to yield a cleaner, modified process gas.

Inventors:: Rosocha, Louis A.

Issue Date:: 2006-06-20

Research Org.:: Univ. of California, Oakland, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1175795

Patent Number(s):: 7063819

Application Number:: 10/395,046

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

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J2219/0841 - Metal
B01J2219/0835 - substantially flat
B01J2219/083 - cylindrical

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J37/32009 - {Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J2219/0875 - Gas
B01J19/088 - {giving rise to electric discharges

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D53/323 - {by electrostatic effects or by high-voltage electric fields}

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J2219/0896 - Cold plasma

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J37/32348 - {Dielectric barrier discharge}

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D2259/818 - Employing electrical discharges or the generation of a plasma

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J2219/0809 - employing two or more electrodes
B01J2219/0869 - Feeding or evacuating the reactor

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DOE Contract Number:: W-7405-ENG-36

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION

Citation Formats


                    Rosocha, Louis A. Nonthermal plasma processor utilizing additive-gas injection and/or gas extraction.  United States: N. p., 2006. 
        Web.

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                    Rosocha, Louis A. Nonthermal plasma processor utilizing additive-gas injection and/or gas extraction.  United States.

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                    Rosocha, Louis A. Tue .  
        "Nonthermal plasma processor utilizing additive-gas injection and/or gas extraction".  United States.  https://www.osti.gov/servlets/purl/1175795.

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@article{osti_1175795,

  title        = {Nonthermal plasma processor utilizing additive-gas injection and/or gas extraction},

  author       = {Rosocha, Louis A.},

  abstractNote = {A device for processing gases includes a cylindrical housing in which an electrically grounded, metal injection/extraction gas supply tube is disposed. A dielectric tube surrounds the injection/extraction gas supply tube to establish a gas modification passage therearound. Additionally, a metal high voltage electrode circumscribes the dielectric tube. The high voltage electrode is energizable to create nonthermal electrical microdischarges between the high voltage electrode and the injection/extraction gas supply tube across the dielectric tube within the gas modification passage. An injection/extraction gas and a process gas flow through the nonthermal electrical microdischarges within the gas modification passage and a modified process gas results. Using the device contaminants that are entrained in the process gas can be destroyed to yield a cleaner, modified process gas.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2006},

  month        = {6}

}

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Works referenced in this record:

Reduction of NO/sub x/ from combustion flue gases by superimposed barrier discharge plasma reactors
journal, January 1997

Urashima, K.; Chang, J. -S.; Ito, T.
IEEE Transactions on Industry Applications, Vol. 33, Issue 4
https://doi.org/10.1109/28.605727

Acid Gas Removal Characteristics of Corona Discharge Methane Radical Shower-Catalyst Hybrid System for Treatment of Jet Engine Test Cell Flue Gas
conference, October 1999

Urashima, K.; Tong, X.; Chang, J. S.
International Fuels & Lubricants Meeting & Exposition, SAE Technical Paper Series
https://doi.org/10.4271/1999-01-3634

Removal of NOx from flue gas by corona discharge activated methane radical showers
journal, June 1997

Kanazawa, S.; Chang, J. S.; Round, G. F.
Journal of Electrostatics, Vol. 40-41
https://doi.org/10.1016/S0304-3886(97)00072-7

Simultaneous removal of NO _x and SO ₂ from NO-SO ₂ -CO ₂ -N ₂ -O ₂ gas mixtures by corona radical shower systems
journal, January 1999

Park, J. Y.; Tomicic, I.; Round, G. F.
Journal of Physics D: Applied Physics, Vol. 32, Issue 9
https://doi.org/10.1088/0022-3727/32/9/311

Time dependence of NO/sub x/ removal rate by a corona radical shower system
journal, January 1996

Ohkubo, T.; Kanazawa, S.; Nomoto, Y.
IEEE Transactions on Industry Applications, Vol. 32, Issue 5
https://doi.org/10.1109/28.536866

NO/NOx removal with C2 H2 as additive via dielectric barrier discharges
journal, May 2001

Chang, Moo Been; Yang, Shyh Chaur
AIChE Journal, Vol. 47, Issue 5
https://doi.org/10.1002/aic.690470529

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Similar Records

Title: Nonthermal plasma processor utilizing additive-gas injection and/or gas extraction

Abstract

Citation Formats

Reduction of NO/sub x/ from combustion flue gases by superimposed barrier discharge plasma reactors journal, January 1997

Acid Gas Removal Characteristics of Corona Discharge Methane Radical Shower-Catalyst Hybrid System for Treatment of Jet Engine Test Cell Flue Gas conference, October 1999

Removal of NOx from flue gas by corona discharge activated methane radical showers journal, June 1997

Simultaneous removal of NO x and SO 2 from NO-SO 2 -CO 2 -N 2 -O 2 gas mixtures by corona radical shower systems journal, January 1999

Time dependence of NO/sub x/ removal rate by a corona radical shower system journal, January 1996

NO/NOx removal with C2 H2 as additive via dielectric barrier discharges journal, May 2001

Reduction of NO/sub x/ from combustion flue gases by superimposed barrier discharge plasma reactors
journal, January 1997

Acid Gas Removal Characteristics of Corona Discharge Methane Radical Shower-Catalyst Hybrid System for Treatment of Jet Engine Test Cell Flue Gas
conference, October 1999

Removal of NOx from flue gas by corona discharge activated methane radical showers
journal, June 1997

Simultaneous removal of NO _x and SO ₂ from NO-SO ₂ -CO ₂ -N ₂ -O ₂ gas mixtures by corona radical shower systems
journal, January 1999

Time dependence of NO/sub x/ removal rate by a corona radical shower system
journal, January 1996

NO/NOx removal with C2 H2 as additive via dielectric barrier discharges
journal, May 2001