TAIL GAS CLEANING CATALYST, AS WELL AS A METHOD FOR PRODUCTION THEREOF Russian patent published in 2019 - IPC B01J21/04 B01J23/42 B01J32/00 B01J37/04 B01J37/08 B01D53/86 

FIELD: machine building.

SUBSTANCE: invention relates to catalysts for cleaning tail gases. Disclosed is a catalyst carrier for cleaning tail gas formed during synthesis of oxalate by CO binding, consisting of Al₂O₃ and having bimodal pore size distribution, having a first peak at 2–10 nm and a second peak at 10–50 nm, and said carrier consists of α-Al₂O₃ and γ-Al₂O₃, and α-Al₂O₃ ranges from 50 to 99 wt% of carrier. Disclosed also is a catalyst for cleaning tail gas formed during synthesis of oxalate, containing said carrier, methods for preparing the disclosed carrier and catalyst, as well as a tail gas cleaning method using said catalyst.

EFFECT: catalyst using the disclosed carrier increases efficiency of reducing levels of nitrogen oxides and alkyl nitrite in tail gases formed during synthesis of oxalate by CO binding.

11 cl, 2 tbl