ELEMENT FOR SUPPRESSION OF HYDROGEN SULFIDE PRODUCTION AND CATALYST FOR TREATMENT OF EXHAUST GASES Russian patent published in 2010 - IPC B01D53/94 B01J23/10 

FIELD: motor industry.

SUBSTANCE: invention relates to element for suppression of hydrogen sulfide production in exhaust gas of automobile or similar vehicle, and to catalyst for treatment of exhaust gases, with application of element for suppression of H₂S. This invention describes element, which contains part that absorbs SO_x, including at least cerium oxide and located on upper side relative to exhaust gas flow direction; and part that releases SO_x, including titanium oxide and having surface acidity higher than surface acidity of part that adsorbs SO_x. Part that adsorbs SO_x is applied onto honeycomb substrate that produces covering layer. Catalyst that treats exhaust gas contains part, adsorbing SO_x, part, releasing SO_x and noble metal applied onto element that suppresses generation of hydrogen sulfide.

EFFECT: suppression of H₂S production without application of substances that pollute environment.

8 cl, 4 dwg, 1 tbl, 8 ex