화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2008년 봄 (04/23 ~ 04/25, 제주ICC)
권호 14권 1호, p.241
발표분야 공정시스템
제목 Selective Non-Catalytic Reduction (SNCR) Process in a Pilot-Scale Flow Reactor: Experiment and CFD Simulation
초록 For controlling the nitrogen oxides (NOx) emissions from the flue gas, selective non-catalytic reduction (SNCR) using urea solution is carried out in a pilot-scale flow reactor equipped with a 150KW LPG burner. Urea-water solution (4% by weight) is injected into the reactor with atomizing air. The experiments are performed at various temperatures with different normalized stoichiometric ratios (reagent/initial NO ratio, NSR).
A turbulent reacting flow CFD model with the droplet model is built for this pilot-scale SNCR process. The full-scale two-dimension CFD simulation results are validated with the experimental data. The CFD simulation results show a satisfactory agreement with the experimental data of NOx reduction and ammonia slip as a function of the temperature and the normalized stoichiometric ratio (NSR). However, unsatisfactory CFD results are shown in the N2O concentration profiles, compared with experimental results.
저자 강태호1, Thanh D. B Nguyen1, 임영일1, 김성준2, 엄원현2, 유경선2
소속 1한경대, 2광운대
키워드 NOx reduction; Selective Non-catalytic Reduction (SNCR); Computational Fluid Dynamics (CFD); Urea Solution; Droplet model.
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