Grantee Research Project Results
Catalytic Reduction of Nitric Oxide in Net Oxidizing Environments
EPA Contract Number: 68D10048Title: Catalytic Reduction of Nitric Oxide in Net Oxidizing Environments
Investigators: Wright, John D.
Small Business: TDA Research Inc.
EPA Contact: Richards, April
Phase: I
Project Period: September 1, 1991 through March 1, 1992
Project Amount: $50,000
RFA: Small Business Innovation Research (SBIR) - Phase I (1991) RFA Text | Recipients Lists
Research Category: SBIR - Air Pollution , Small Business Innovation Research (SBIR) , Air Quality and Air Toxics
Description:
Nitrogen oxides (NO and NO, or NO.,) are among the most pervasive and difficult emissions to control. Although the decomposition of the major species (NO) is thermo-dynamically favored, there are no catalytic processes capable of decomposing NO. without the addition of a reducing gas. This is because the oxygen produced during the decompo- sition remains strongly chemisorbed on the catalyst, block- ing access of the NO to the catalytic sites and reversibly poisoning the catalyst. Because the reducing gas contributes roughly one-half of the total cleanup cost, a direct catalytic decomposition process which did not require the use of a reducing gas would be a major advance.TDA Research, Inc., (TDA) proposes to develop substi- tute zeolites capable of carrying out this reaction. These materials desorb the oxygen at a lower temperature than do other materials, allowing the reaction to proceed. TDA will synthesize substitute zeolites and evaluate the performance of these materials under conditions representative of the exhaust of a gas turbine. Then TDA will develop improved catalysts through manipulation of both the structure and composition of the zeolite, as well as the catalytically active cations.
Supplemental Keywords:
Sustainable Industry/Business, Scientific Discipline, Air, Toxics, Technology for Sustainable Environment, Engineering, Chemistry, HAPS, Engineering, Chemistry, & Physics, cleaner production/pollution prevention, air toxics, New/Innovative technologies, catalysts, novel catalyst systems, emissions, Nitrogen dioxide, treatment, nitrogren oxides (NOx), emission controls, Nox, zeolites, Nitrogen Oxides, catalyst formulations, nitrogen dioxide (NO2), control, Substitutes, catalyst composition, nitrogen oxides (Nox), emission control technologies, air pollutants, Nitric oxide, air pollution, air pollutant precursors, gas turbines, acid rain, catalytic reductionProgress and Final Reports:
The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.