A Study on the SO_2 Removal Efficiency by Different Shapes of Rapid-Mixing Device

摘要

Experiment results show that the degree of sorbent dispersion depends strongly on duct structure and position of injection holes. Highest dispersion efficiency received when we installed Rapid-mixing facility inside of duct and 4 injection holes. Lab-scale facility that was made up based on optimum simulating results was operated to verify such as quantity of holes, Ca/S molar ratio and installation of Rapid-mixing facility. The results presented in this study a optimum condition for the development of practical DSI process.rnLab-scale facility that is made up based on optimum simulating result is the efficient solution for evaluating the performance of SO_2 removal process under specific operatingrnconditions. The primary results obtained in this study lead to the following conclusions.rn1) The results indicated that DSI process was received in case of the ductwork is established Lobed-plate in duct to solve uniform dispersion of within the duct. Rapid-mixing facility is considered for the high SO_2 Removal efficiency and this plate is judged that installed step-plate is a good selection.rn2) Since a larger SR ratio means that more sorbent amount per unit time are fed into the duct for a inlet SO_2 concentration given in the gas flow, and lead to higher probability of contactrnand reaction between Ca(OH)_2, and SO_2.rnWhen injection hole is 4 holes at either case, flow ability change analyzed the biggest in reactor of rapid-mixing facility. Contact ratio of exhaust gas and sorbent increases because of this.