Abstract:
PURPOSE: A two-dimensional fluidized-bed photocatalytic reactor is provided which has an annulus shaped narrow gap, and a method is provided which photodecomposes nitrogen oxide (NO) using the improved two-dimensional fluidized-bed photocatalytic reactor. CONSTITUTION: The two-dimensional fluidized-bed photocatalytic reactor comprises an annulus part (28) consisting of two quartz tubes each of which have different diameters; a porous dispersion plate (21) supporting photocatalysts (24) at the lower part of the annulus part; a reactive gas infusion part (25) installed under the porous dispersion plate; a reactive gas discharging part (27) installed at the upper part of the annulus part; and an ultraviolet ray lamp (23) installed inside the quartz tube having a smaller diameter out of the quartz tubes (22), wherein the photocatalysts (24) are one or more catalysts selected from the group consisting of TiO2, SnO2, ZnO, WO3, Fe2O3, CdS, MoS2, CdSe and MoSe2 which are coated on silica gel. The method for photodecomposable nitrogen oxide (NO) comprises the steps of filling photocatalysts into the annulus part of the two-dimensional fluidized-bed photocatalytic reactor; infusing nitrogen oxide (NO) into a reactive gas infusion part; and irradiating ultraviolet rays.
Abstract:
본 발명은 γ-알루미나에 알칼리염 및 산화구리가 담지된 흡수제 및 그의 제조방법에 관한 것이다. 본 발명의 흡수제는 γ-알루미나 100중량%에 알칼리염 1 내지 10중량% 및 산화구리 5 내지 20중량%가 담지되어 있으며, 알칼리염 및 질산구리를 γ-알루미나에 담지시키고, 소성하여 제조한다. 본 발명의 흡수제는 이산화황의 흡수용량 및 재생전환비가 우수할 뿐만 아니라, 반복사용시에도 이산화황의 흡수용량이 감소하지 않으므로, 이산화황을 제거하기 위한 건식법에 이용될 수 있다.