In recent years, the pollution from the power industry to the environment has been paid more and more attention by people. Due to the high sulfur coal used in the production of electricity in China, the pollution caused by SO2 to the environment is particularly significant. Desulfurization process a wide range, at present more than 200 kinds, of which wet flue gas desulfurization process in developed countries after 20 years of application, compared with other technology has the following advantages: ① has long-term application experience in thermal power plant; ② desulfurization efficiency and high absorption rate; ③ availability is good. At present, the world's existing desulfurization machine in the wet process accounted for about 85%, the use of high visibility. In wet FGD process, the selection of the FRP Desulfurization Tower and the design of its performance parameters are very important, it is related to the desulfurization efficiency and the service life of the tower, this article through to the glass fiber reinforced plastic desulfurization Tower ph (ph), gas-liquid ratio (l/g), flow field characteristics, scaling and other performance analysis and research, for the selection and design of

Process principle of wet desulfurization. The process of wet desulfurization includes cooling, absorbing, re-heating, gypsum recycling, and raw material modulation. The sulfur dioxide gas in the flue gas is contacted with the calcium carbonate absorption liquid in the FRP desulfurization Tower. The reaction is as follows: FRP Desulfurization tower inside: Caco3+so3+12h2o CASO3 12h2o+co2 oxidation tower: Caso3 12H2O+32O2+32H2O caso4+2h2o2.

FRP Desulfurization Tower has the following characteristics: ① belongs to low temperature, low pressure and time constant large equipment; the ph value and concentration of ② absorption solution affect the desulfurization efficiency; ③ is the equipment to deal with highly corrosive fluids, so fouling, clogging and corrosion can occur in the tower. Therefore, in the selection of FRP Desulfurization Tower should be considered comprehensively, not only to have a high desulfurization efficiency, limestone excess rate can not be too high, otherwise it will scale seriously, affecting the service life of the tower. In the design should pay attention to: ① The simple tower structure which the scale is difficult to attach, the liquid remains few, the ② through the test debugging to control the absorption reaction ph range and the absorption liquid ratio, improves the desulfurization rate while reduces the limestone excess rate; ③ the flow field analysis of FRP Desulfurization Tower by numerical simulation, the optimum flue gas flow rate is selected. The optimal distribution of the absorption fluid, so that the absorption fluid can be evenly distributed, to prevent the occurrence of bias current, so as to improve the efficiency of desulfurization, reduce the occurrence of fouling.