A PROCESS FOR THE ELIMINATION OF VOLATILE ORGANIC COMPOUNDS AND HAZARDOUS AIR POLLUTANTS IN AMMONIA PLANTS
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Nov 9, 2017
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Nov 25, 2015
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Dec 1, 2014
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In a process for the elimination of volatile organic compounds (VOCs) and hazardous air pollutants (HAPs) formed as by-products in the shift section (SS) of an ammonia plant, a carbon dioxide (C02) stream from a vent line, which is arranged downstream from the shift section and the C02 removal section, is recycled to the primary reformer (TR) of the ammonia plant. This way, the oxygenates contained in the carbon dioxide vent will be decomposed in the primary reformer burners, and the total emission of VOCs and HAPs will be considerably reduced.
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