Modern production method of nitric acid production may lead to generation of several different gaseous emission components, such as nitrogen oxides (NOx), ammonia NH3 and nitrous oxide N2O. Nitrogen monoxide is an intermediate gaseous product in manufacturing of nitric acid HNO3. NO is formed in a catalytic reaction between ammonia and molecular oxygen O2. But undesirable side reactions may result in formation of nitrogen dioxide NO2 and nitrous oxide N2O. The NO and NO2 emissions can be reduced by use of Selective Catalytic Reduction unit (SCR), which deploys ammonia gas NH3 to limit emissions of NO and NO2. A modern nitric acid plant needs to monitor the emissions of these gases.
By Gasmet Technologies Oy based in Helsinki, FINLAND.
SA Eng. designs and manufactures single machines and / or complete plants for the treatment of Hazardous Waste. The supply can relate to the single shredder used only for the volume reduction of the material or to imply the use of a Nitrogen Blanketing System of the machine and / or of the complete system with subsequent separation of the product. SA Eng. provides for the study of customized systems in compliance with the specific need/request of each customer.
By SA Eng. based in San Donà di Piave, ITALY.
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