Studies On Process Design For Desulfurization And Denitration Simultaneously

At present, with the rise and development of industrial technology progress, air pollution prevention and management has become a growing concern. At the same time, a large number of SO2and NOx emissions of acidrain and photochemical smog formation is the main reason, therefore, how to effectively control SO2and NOx emissions become an important research subject gradually. And desulfurization, denitrification integrated technology research in this field has also become difficult and hot topics. In this paper, the mechanism of SO2and NOx removal proceeding, the removal of the reaction mass balance and heat balance, and to design new experiments based on simultaneous desulfurization and denitrification reactors, new reactor heated to the reaction gas feedstock gas is the energy to get rational use; while the reactor is to achieve desulfurization and denitrification simultaneously. And this paper, based on the existing catalyst, further modification of the catalyst in a highly efficient catalyst for desulfurization and denitrification.In this paper, ZSM-5zeolite as a catalyst to study the copper-vanadium catalyst CumVnOx/ZSM-5preparation, modification, evaluation and characterization, understanding of the impacts the efficiency of catalytic desulfurization and denitrification factor, and reaction and the modified process route catalyst for successive screening process to select the best route and catalyst. Experimental results show that the catalyst with simultaneous desulfurization and denitrification CumVnOx/ZSM-5performance, and also has good resistance to sulfur in the toxicity and good heat resistance, the modified catalyst CoO-K2SO4-Ni-CumVnOx/ZSM-5of simultaneously in addition to the vast majority of SO2and NOx, when the temperature is450℃, space velocity of1.67S-1reached optimum efficiency of desulfurization and denitrification, the removal rate of90%. Same screening process route, experiments show that the reaction exhaust gas can be absorbed by alkali, the flue gas after the absorption of SO2and NOx removal to all. Absorption liquid can be recycled for use as raw material for the manufacture of inorganic fertilizer.