International Topical Meeting on Nuclear Research Applications and Utilization of Accelerators
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SM/EB-24
E-Beam Flue Gas Treatment Plant for “Sviloza Power Station” AD J.K. Kim1, B. Han1, J. Kim1, N. Doutzkinov2, and K. Nikolov3 1EB TECH CO., LTD., Yongsan-dong Yuseong-gu, Daejeon, Republic of Korea Corresponding Author: cleaner@eb-tech.com The problems of environmental damage and degradation of natural resources are receiving increasing attention throughout the world. The increased population, higher living standards, increased urbanization and enhanced industrial activities of humankind are all leading to degradation of the environment. Increasing urbanization has been accompanied by significant air pollution, and the activities to produce heat and electrical energy are responsible for emitting a large number and amount of pollutants. Electrons interact with such pollutants in stack gases containing sulphur oxides (SO2 and SO3), nitrogen oxides (NOx = NO2 + NO) and volatile organic compounds to create divergent ions and radicals including oxidizing radicals and excited species. These excited species react in a various ways of neutralization reactions to convert SOx and NOx into a dry product containing (NH4)2SO4 and NH4NO3 that was usable as a fertilizer. After the successful operation of e-beam flue gas treatment pilot plant in Maritza East 2 power plant equipped with three electron accelerators (0.8 MeV, total power 90 kW) with a gas flow rate of 1.0 x 104 m3/h containing 5600 ppm SO2 and 390 ppm NOx, the feasibility study for an industrial scale EBFGT facility for a 120 MW power plant in “Sviloza Power Station” AD in Svishtov, Bulgaria, treating a flue gas flow of 6.0 x 105 m3/h (NTP) has carried out with a comprehensive engineering and cost study. The power of accelerators required is 4 x 350 kW, and expected efficiency of removal for SOx is 85% and 40% for NOx. There are two reaction chambers each equipped with two accelerators, which have two irradiation windows each, installed in series irradiate each chamber. The applied dose is around 4 kGy, and the by-product will be collected for fertilizer. This study showed that the large-scale EB plants for flue gas cleaning have cost advantages over conventional technologies.
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