MANUFACTURING METHOD OF HONEYCOMB CERAMIC UNIT FOR CATALYTIC NEUTRALISER OF EXHAUST GASES OF INTERNAL COMBUSTION ENGINE, AND APPLICATION METHOD OF SUBSTRATE ONTO HONEYCOMB CERAMIC UNIT FOR CATALYTIC NEUTRALISER OF EXHAUST GASES Russian patent published in 2015 - IPC B01J37/25 B01J37/08 B01D53/94 

FIELD: engines and pumps.

SUBSTANCE: invention relates to a manufacturing method of a honeycomb ceramic unit for a catalytic neutraliser of exhaust gases, according to which to the ceramic unit from the main material there applied is a binding layer containing sodium silicate Na₂O(SiO₂)_n or potassium silicate K₂O(SiO₂)_n, or their mixture, above which there formed is at least one substrate layer for application of a catalyst, which contains a nanodispersed oxide of aluminium hydroxide (boehmite); for that purpose, a suspension layer is applied onto the second workpiece, which contains nanodispersed oxide of aluminium hydroxide; the workpiece with the applied suspension layer is dried; after that, the workpiece of the honeycomb ceramic unit with the applied substrate material is roasted, and therefore, a honeycomb ceramic unit for a catalytic neutraliser of exhaust gases is obtained. In addition, an application method of substrate onto the honeycomb ceramic unit for the catalytic neutraliser of exhaust gases, which applies this technology, is proposed.

EFFECT: improvement of passage of a gas flow through pores and channels of a substrate; increase and optimisation of a catalytic neutralisation process of substances in exhaust gases of diesel engines.

17 cl, 24 dwg, 1 ex