Engineering Application of Low Temperature Oxidation Adsorption Technology to Treat the Waste Gas of Gas Heat Conduction Oil Furnace
Lianyungang Petrochemical Industry Base is committed to the deep removal and near-zero emission of SO2,NOx and other pollutants.Successful introduction of Huaneng Clean Energy Research Institute's original demonstration project of integrated removal of waste gas pollutants to promote the innovative development of green chemical industry.The project was successfully completed in November 2022,its core process design will be 50 000 m3/h of flue gas through the spray cooling tower for efficient cooling,cooling to-15 ℃ and then into the adsorption tower for oxidation adsorption treatment.The inlet concentration of 150～200 mg/m3 NOx is oxidized and adsorbed,and the outlet concentration is stably controlled below 3 mg/m3,fully demonstrating the excellent adsorption performance of the technology.The saturated adsorbent is regenerated by the desorption furnace heated to 200 ℃ to achieve recycling,while the desorbed NOx is injected back into the boiler,reacts with the free radical of the reducing gas to generate N2,and realizes the N2-NOx-O2 thermodynamic equilibrium.This technology is not only simple to operate,low energy consumption,but also has a wide range of adsorbent sources and huge output,which opens up broad application prospects for the efficient adsorption treatment of NOx.
near-zero emissionultra-low temperature adsorbentNOx removaladsorption regeneration
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