Research on the Effect of Flow Field on Mercury Removal Efficiency in Flue Gas in Multiphase Flow Reactor

摘要

The simulated flue gas carrying mercury generated with special mercury generator enters into a multiphase flow reactor at different rates to simulate the flow field in different APCDs duct at power station. The studied results have demonstrated that different flow characteristics in the reactor affect the mercury speication distribution in the flue gas, and it also affects the mercury removal efficiency. The possible reasons are that different flow characteristics makes the contents in the flue gas be with different resident time in the reactor and affects the chemical reaction between the contents with mercury, so that merucy speciation distribution in flue gas changes. The results will not only help understand the principle that flow characteristics affects the mercury speication distribution and mercury removal efficiency by absorbent and fly ash in the flue gas, but also help improve mercury removal efficiency through optimizing the flow field in the duct so as to reduce mercury pollution emission in the flue gas.