CAJ | 학술논문

对烧结烟气NID脱硫工艺入口SO2质量浓度大于2000 mg／m3的情况进行了实验研究。研究结果表明，入口SO2质量浓度为2800 mg／m3条件下，随反应温度升高脱硫效率先升高，在120℃时脱硫效率达到91％，而后趋于平稳；随Ca／S提高，脱硫效率也提高，Ca／S为1．6时，脱硫效率达到91％；H2 O／CaO增大，脱硫效率先上升，在1．8时脱硫效率达到最高91％，而后下降；循环倍率对脱硫效率提升效果显著，在循环倍率150时脱硫效率达到了93．4％。实验结果与现场监测数据表明，较低的烟气入口浓度更利于SO2脱除，高浓度和低浓度SO2工况下的最优操作参数不完全相同。
대소결연기NID탈류공예입구SO2질량농도대우2000 mg／m3적정황진행료실험연구。연구결과표명，입구SO2질량농도위2800 mg／m3조건하，수반응온도승고탈류효솔선승고，재120℃시탈류효솔체도91％，이후추우평은；수Ca／S제고，탈류효솔야제고，Ca／S위1．6시，탈류효솔체도91％；H2 O／CaO증대，탈류효솔선상승，재1．8시탈류효솔체도최고91％，이후하강；순배배솔대탈류효솔제승효과현저，재순배배솔150시탈류효솔체도료93．4％。실험결과여현장감측수거표명，교저적연기입구농도경리우SO2탈제，고농도화저농도SO2공황하적최우조작삼수불완전상동。
In this paper ,the desulphurization from sintering flue gas by a novel integrated desulfurization system under SO2 initial concentrations above 2 000 mg/m3 is experimentally investigated .The results show that ,with the increase of the reac-tion temperature ,desulphurization efficiency increases firstly ,when the temperature rises at 120 ℃ ,the desulfurization effi-ciency reaches about 91% and then tends to be stable;with the increase of Ca/S ,the desulphurization efficiency also in-creases and when Ca/S is 1 .6 ,the desulphurization efficiency will reach 91% ;with the increase of H2O/CaO ,the desulfu-rization efficiency initially increases ,rising to the highest 91% when it is 1 .8 and then decreases .The circulation ratio sig-nificantly affects the desulphurization efficiency and the desulfurization efficiency can reach 93 .4% when the circulation ratio is 150 .The semi-pilot and field experimental results indicate that lower initial SO2 concentration is more effective to the re-moval of SO2 and there is difference in the optimum operation parameters between a high SO2 initial concentration and a low SO2 concentration .