SORPTION CATALYSTS FOR COMBINED SORPTION-OXIDATION CLEANING OF DIESEL ENGINE EXHAUST GASES Russian patent published in 2000 - IPC

FIELD: sorption catalysts for combined sorption-oxidation cleaning of diesel engine exhaust gases. SUBSTANCE: sorption catalyst with blocking activity for highly volatile organic components of exhaust gases, component particles of medium volatile and difficulty volatile organic components of exhaust gases and also, if needed, for ammonia, with oxidizing activity relative to carbon monoxide, with limited oxidizing activity for sulfur dioxide and nitric oxide, contains active mass from solid-state acids in system V₂O₅/WO₃/TiO₂/SiO₂/Al₂O₃/SO2-4

/PO3-4 with complete or partial replacement, if needed, of portion of tungsten trioxide in active mass with molybdenum trioxide. In this case, active mass additionally contains metals of platinum group in the form of their oxides. EFFECT: higher sorption and oxidation activity of catalyst and its mechanical strength. 8 cl, 5 dwg, 4 tbl, 10 ex