우레아 기반 SNCR 적용에 따른 가축분뇨 고체연료 배기가스 NOx 저감에 대한 전산해석
Computational Analysis of Nitrogen Oxides Reduction in Exhaust Gas from Livestock Manure Solid Fuel Using Urea-based Selective Non-catalytic Reduction
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초록
Livestock manure solid fuel has been studied as a promising domestic energy resource for reducing greenhouse gasemissions in agricultural fields. To successfully commercialize this technology, the environmental facilities require optimization in accordance with domestic environmental standards. In the present study, a computational analysis model of a livestock manure solid fuel boiler system was developed using Aspen Plus to investigate nitrogen oxides (NOx) emissions and NOx conversion efficiency®using urea-based selective non-catalytic reduction (SNCR). All data were compared across different livestock species and simulated at various operating temperatures. The simulation showed that NOx emissions were the highest from chicken manure and the lowest from swine manure. However, when converted to an oxygen concentration of 12%, NOx emissions were the highest from cattle manure. Dominant factors influencing NOx emissions through a range of temperatures were analyzed, and the optimal operating temperature range (875-950°C) was derived.
Abstract
Livestock manure solid fuel has been studied as a promising domestic energy resource for reducing greenhouse gasemissions in agricultural fields. To successfully commercialize this technology, the environmental facilities require optimization in accordance with domestic environmental standards. In the present study, a computational analysis model of a livestock manure solid fuel boiler system was developed using Aspen Plus to investigate nitrogen oxides (NOx) emissions and NOx conversion efficiency®using urea-based selective non-catalytic reduction (SNCR). All data were compared across different livestock species and simulated at various operating temperatures. The simulation showed that NOx emissions were the highest from chicken manure and the lowest from swine manure. However, when converted to an oxygen concentration of 12%, NOx emissions were the highest from cattle manure. Dominant factors influencing NOx emissions through a range of temperatures were analyzed, and the optimal operating temperature range (875-950°C) was derived.
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