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NOX ABATEMENT FOR STATIONARY SOURCES IN JAPAN
Citation:
Ando, J. NOX ABATEMENT FOR STATIONARY SOURCES IN JAPAN. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/7-79/205.
Description:
The report describes current NOx air pollution problems in Japan and the methods used there to control NOx emissions from stationary sources. The two most common techniques in use are combustion modifications and flue gas treatment (FGT). FGT technologies have been developed more extensively in Japan than in any other country as a result of Japan's stringent NOx emission standards. The various NOx control technologies are examined with respect to both principles of operation and specific process applications. Currently the most popular (over 60 commercial applications) FGT technology is selective catalytic reduction. This technology is capable of 80-90% NOx control and has the lowest cost per kilogram of NOx removed. Recently catalysts have been developed that are resistant to particulate plugging and appear to be applicable to coal-fired boilers in the U.S. Cost and commercial performance data, based on Japanese installations, are presented in much greater detail than was previously available.