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TECHNICAL PAPERS: Fuels and Combustion Technology

The Selective Non-Catalytic Removal (SNCR) of Nitric Oxides From Engine Exhaust Streams: Comparison of Three Processes

[+] Author and Article Information
Jerald A. Caton

Zhiyong Xia

Department of Mechanical Engineering, Texas A&M University, College Station, TX 77943-3123

J. Eng. Gas Turbines Power 126(2), 234-240 (Jun 07, 2004) (7 pages) doi:10.1115/1.1688366 History: Received May 01, 2001; Revised June 01, 2002; Online June 07, 2004
Copyright © 2004 by ASME
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References

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Figures

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Dry volumetric concentrations of oxygen and carbon dioxide and the mass air fuel ratio as a function of equivalence ratio for C7H16 and air combustion
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Schematic of typical experimental system
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The ratio of outlet NOx and inlet NOx as a functions of reactor temperature for seven levels of oxygen for 600 ppm carbon monoxide and a residence time of 2.1 secs using urea
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Nitric oxide reduction as functions of oxygen concentration for the three SNCR processes. Conditions for these results are listed in Table 1.
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Schematic figure of the possible chemical pathways for the reduction of nitric oxide (NO) to molecular nitrogen (N2) using cyanuric acid, urea, or ammonia

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