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Abstract

It is shown that Gd-zeolites have a catalytic activity towards ethylene hydrogenation at 1 atm. This activity decreases with an increase in the SiO2/Al2O3 ratio from 2.2 to 6.1 and 4.1, i.e. upon going from an X type zeolite to Y and L. For these types of zeolite the activity grows with an increase in Gd3+ content from 50 to 80%. Oxygen addition to the reaction mixture stabilizes the catalytic activity of zeolites.
Pcyocykcyacyzcyacyncyocy, chcytcyocy gcyacydcyocylcyicyncyicyiecy qvycyiecy tscyiecyocylcyicytcyycy pcyrcyicy 1 acytcymcy. pcyrcyocygcyvcylcyyacyyucytcy zcyacymcyiecytcyncyucyyucy kcyacytcyacylcyicytcyicychcyiecyscykcyucyyucy acykcytcyicyvcyncyocyscytcysoftcy vcy gcyicydcyrcyocygcyiecyncyicyzcyacytscyicyicy ecytcyicylcyiecyncyacy, kcyocytcyocyrcyacyyacy ucybcyycyvcychcyiecytcy scy icyzcymcyiecyncyiecyncyicyiecymcy ocytcyncyocyshcyiecyncyicyyacy SiO2/Al2O3 ocytcy 2,2 dcyocy 6,1 icy 4,1, tcy.iecy. ocytcy tscyiecyocylcyicytcyacy tcyicypcyacy X kcy Y icy L. Scyrcyiecydcyicy tscyiecyocylcyicytcyocyvcy dcyacyncyncyocygcyocy tcyicypcyacy acykcytcyicyvcyncyocyscytcysoftcy rcyacyscytcyiocytcy scy ucyvcyiecylcyicychcyiecyncyicyiecymcy scyocydcyiecyrcyzhcyacyncyicyyacy icyocyncyocyvcy gcyacydcyocylcyicyncyicyyacy, kcyocytcyocyrcyocyiecy vcyacyrcysoftcyicyrcyocyvcyacylcyocyscysoftcy ocytcy 50 dcyocy 80%. Dcyocybcyacyvcylcyiecyncyicyiecy kcyicyscylcyocyrcyocydcyacy vcy rcyiecyacykcytscyicyocyncyncyucyyucy scymcyiecyscysoftcy scytcyacybcyicylcyicyzcyicyrcyucyiecytcy gcyicydcyrcyocygcyiecyncyicyzcyacytscyicyocyncyncyucyyucy acykcytcyicyvcyncyocyscytcysoftcy tscyiecyocylcyicytcyocyvcy.

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