Functional Coupling Study of Fluidized Bed Gasification Cyclone Filter and Compound Dust Collector
The syngas produced by fluidized bed gasification has a high dust content,and the gas-solid separation is usually carried out by using a multi-stage cyclone separator+granular bed filtration method,which has a long process flow.In this paper,a new type of cyclone filtration and compound dust collector is proposed,which can combine cyclone separation and filter separation functions and can shorten the dust removal process flow.The separation performance of the compound dust collector is investigated by cold model experiment,the influence degree of each factor is determined by orthogonal experiment,and the variation rule of the dust collector performance is obtained by single factor experiment.The research results indicate that cyclone separation can remove most dust particles with a diameter greater than 1 μm,and granular bed filtration can almost capture most fine dust below 1 μm.The overall separation efficiency of the compound dust collector is stable at over 99.9％.
fluidized bed gasificationcyclone filtration compound dust removalcold model experimentdust particle sizepressure drop
万方数据
维普
