NOx reduction methods and apparatuses
Abstract
A NO.sub.x reduction method includes treating a first gas containing NO.sub.x, producing a second gas containing NO.sub.2, reducing a portion of the NO.sub.2 in the second gas to N.sub.2, and producing a third gas containing less NO.sub.x than the first gas, substantially all of the third gas NO.sub.x being NO. The method also includes treating the third gas, producing a fourth gas containing NO.sub.2, reducing a portion of the NO.sub.2 in the fourth gas to N.sub.2, and producing a fifth gas containing less NO.sub.x than the third gas, substantially all of the fifth gas NO.sub.x being NO. Treating the first and/or third gas can include treatment with a plasma. Reducing a portion of the NO.sub.2 in the second and/or fourth gas can include reducing with a catalyst. The method can further include controlling energy consumption of the plasmas independent of each other.
- Inventors:
- Issue Date:
- Research Org.:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175094
- Patent Number(s):
- 6808694
- Application Number:
- 09/960,124
- Assignee:
- Battelle Memorial Institute (Richland, WA)
- 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
- DOE Contract Number:
- AC06-76RL01830
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Tonkyn, Russell G., Barlow, Stephan E., Balmer, M. Lou, and Maupin, Gary D. NOx reduction methods and apparatuses. United States: N. p., 2004.
Web.
Tonkyn, Russell G., Barlow, Stephan E., Balmer, M. Lou, & Maupin, Gary D. NOx reduction methods and apparatuses. United States.
Tonkyn, Russell G., Barlow, Stephan E., Balmer, M. Lou, and Maupin, Gary D. Tue .
"NOx reduction methods and apparatuses". United States. https://www.osti.gov/servlets/purl/1175094.
@article{osti_1175094,
title = {NOx reduction methods and apparatuses},
author = {Tonkyn, Russell G. and Barlow, Stephan E. and Balmer, M. Lou and Maupin, Gary D.},
abstractNote = {A NO.sub.x reduction method includes treating a first gas containing NO.sub.x, producing a second gas containing NO.sub.2, reducing a portion of the NO.sub.2 in the second gas to N.sub.2, and producing a third gas containing less NO.sub.x than the first gas, substantially all of the third gas NO.sub.x being NO. The method also includes treating the third gas, producing a fourth gas containing NO.sub.2, reducing a portion of the NO.sub.2 in the fourth gas to N.sub.2, and producing a fifth gas containing less NO.sub.x than the third gas, substantially all of the fifth gas NO.sub.x being NO. Treating the first and/or third gas can include treatment with a plasma. Reducing a portion of the NO.sub.2 in the second and/or fourth gas can include reducing with a catalyst. The method can further include controlling energy consumption of the plasmas independent of each other.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 26 00:00:00 EDT 2004},
month = {Tue Oct 26 00:00:00 EDT 2004}
}
Works referenced in this record:
Lean NOx Reduction in Two Stages: Non-thermal Plasma Followed by Heterogeneous Catalysis
conference, October 2000
- Tonkyn, Russell; Yoon, Steven; Barlow, S. E.
- International Fuels & Lubricants Meeting & Exposition, SAE Technical Paper Series
NOx Destruction Behavior of Select Materials When Combined with a Non-Thermal Plasma
conference, October 1999
- Lou Balmer, M.; Tonkyn, Russ; Yoon, Steven
- International Fuels & Lubricants Meeting & Exposition, SAE Technical Paper Series