CARRIER-BASED CATALYST, MONOLITHIC CATALYST OF SELECTIVE CATALYTIC REDUCTION (SCR), METHOD FOR THEIR PREPARATION AND METHOD FOR REMOVING NITROGEN OXIDES

摘要

FIELD: exhaust gas processing.;SUBSTANCE: invention relates to a catalyst of selective catalytic reduction based on a carrier containing a carrier that contains at least one selected from a group consisting of TiO2, Al2O3, SiO2, ZrO2, CeO2 and a combination thereof and catalytically active components applied to this carrier that contain vanadium, antimony and at least one additional component selected from a group consisting of silicon, aluminum and zirconium, wherein the specified at least one additional component is contained in the amount from 0.5 to 20% by weight calculated as SiO2, Al2O3 or ZrO2, respectively, wherein in each case, per the total weight of the carrier and catalytically active components, the carrier is contained in the amount from 50 to 97.5% by weight. The invention also relates to a method for producing a carrier-based catalyst, to a monolithic catalyst of selective catalytic reduction, to a method for producing it, and to a monolithic catalyst of selective catalytic reduction obtained by this method, to a method for NOx reduction in exhaust gas from an internal combustion engine and method for processing exhaust gas. ;EFFECT: aim of the invention is producing SCR catalyst that shows excellent activity in fresh and aged state for reducing NOx emissions in mobile and stationary devices of exhaust gas emission.;29 cl, 2 dwg, 1 tbl, 28 ex