The invention aims at solving the problem such as low desulphurization activity of desulfurizer, low
mechanical strength, poor regeneration property and higher cost and the like, which discloses a high temperature desulfurizer which uses
coal ash as carrier and a desulfurization device , the method comprises utilizing mechanical mixing method to mix multicomponent
metal oxide,
coal ash and
adhesive of the activity component through
machine, then extruding into strip shape by utilizing a self-made desulfurizer,
drying formed desulfurizer under the temperature of 100-200 DEG C, and calcining under the temperature of 600-1000 DEG C, desulfurizer which is calcined is directly used to desulfurize
coal gas under the high temperature. High-temperature desulfuration of hot
coal gas adopts a circulating
fluidized bed to achieve continuous desulfurization and regeneration, and desulfurizer can effectively remove H2S in high-temperature
coal gas under the temperature scope which is 400-750 DEG C. Desulfurizer after being vulcanized can be regenerated in a fluid
bed regenerating device. The high temperature desulfurizer has the advantages of simple preparation technique, simple equipment and low cost, which has higher
vulcanization activity and
sulfur capacity, excellent desulfurizing capacity and higher
mechanical strength, and opens up a new approach which utilizes ash from power
plant to be carrier to prepare high-temperature
coal gas desulfurizer.