The invention discloses a
flue gas dust removal and denitration integrated catalytic
ceramic filter which takes
porous ceramics coated and adhered or wound with
ceramic fiber composite membranes as carriers; iron,
copper,
cerium,
manganese and
titanium oxides or composite oxides are loaded in pores of the
porous ceramics as denitration
active components; a preparation method of the
flue gas dust removal and denitration integrated catalytic
ceramic filter can be realized by adopting a synchronous vacuum impregnation method, a step-by-step vacuum impregnation method, a co-
precipitation method, a
sol-
gel method and other methods. The filter disclosed by the invention can remove dust and
nitrogen oxides in high-temperature
flue gas at the same time, is hypotoxic or non-toxic and wide in applicable temperature range and prevents the dust in the
flue gas from blocking and abrading the
active components. The best denitration efficiency can be achieved at different temperatures within the temperature range of 150-400 DEG C, so that the
working temperature of denitration is greatly expanded. The
flue gas dust removal and denitration integrated catalytic ceramic filter disclosed by the invention can be used for controlling the
discharge of the dust and the
nitrogen oxides in the processes of thermal power, steel, glass, ceramics,
cement, nonferrous metals,
petrochemical, chemical, waste
incineration and the like.