CATALYST, METHOD OF ITS PRODUCTION (VERSIONS) AND METHOD OF CLEANING OFF-GASES OF NITROGEN OXIDES Russian patent published in 2013 - IPC B01J23/44 B01J21/10 B01J23/02 B01J37/02 B01J37/03 B01J37/04 B01D53/56 C01B21/02 B01J21/04 

Abstract RU 2480281 C1

FIELD: process engineering.

SUBSTANCE: invention relates to catalyst, methods of its production and application for cleaning off-gases of NOx in oxidative conditions in the presence of hydrocarbon. Catalyst for cleaning off-gases of nitrogen oxides by catalytic reduction of methane in oxidative medium comprises 1.75-2.0 wt % of palladium applied on carrier. The latter represents Mg(Sr)-Al-O oxide composition containing 4-14 wt % of Mg(Sr)O with specific surface (3.8 - 9.0) m2/g and moisture content of (0.35-0.65) ml/g. Invention covers the method of making the catalyst including manufacturing Mg-Al-O and Sr-Al-O carriers and that of cleaning off-gases from nitrogen oxides by catalytic reduction by hydrocarbons in oxidative atmosphere in the presence of above described catalyst including palladium applied on Mg-Al-O or Sr-Al-O carrier.

EFFECT: efficient cleaning.

4 cl, 21 ex, 1 tbl

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RU 2 480 281 C1

Authors

Ivanova Aleksandra Stepanovna

Slavinskaja Elena Markovna

Karasjuk Natal'Ja Vasil'Evna

Polukhina Irina Alekseevna

Chumachenko Viktor Anatol'Evich

Noskov Aleksandr Stepanovich

Dates

2013-04-27Published

2012-03-01Filed