| http://www.w3.org/ns/prov#value | - We have discovered from actual tests, that in order for a method for removing nitric oxide from actual flue gases to be practical it must be able to remove 50 to percent of the nitric oxide from the flue gas for a long period of time at high space velocities and in the presence of both oxygen and sulfur dioxide and other gases actually present in flue gases.
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