ONE TOWER-MULTIBEDS CIRCULATING FLUIDIZATION LARGE-SCALE DRY DESULFURIZATING PROCESS FOR FLUE GAS

摘要

The present invention provides a large-scale dry desulfurizating process for flue gas, the process is based on an one tower-multibeds circulating fluidization technology. At the request of the large scale dry desulfurization for flue gas, the bottom fluidized region of the desulfurization reaction tower is divided into two or more independent small fluidized regions (fluidized subbeds),and above the fluidized subbeds at the bottom of the desulfurization tower, the independent small fluidized subbeds are organically combined into a desulfurization reaction tower with single tower structure. It solves the fluidizing problems of the desulphurizer particles when the single tower is scaled up, it solves the flow field organization problems of the multiphase chemical reaction process, and it solves the nuclear technology problems of the scaling-up the single tower for the circulation fluidized dry desulfurization for flue gas. At the same time, It can reduce the height of the large scale desulfurization tower, realizes the scaling-up of single tower in the dry desulfurization process for flue gas, and it reduce the cost of dry desulfurization for flue gas, it realizes the desulfurization technology needs of high desulfurization efficiencywide turndown ratio, low investment and low running cost, low water consumption.