LOADED HIGHLY SELECTIVE DUAL-METAL CATALYST HAVING CORE-SHELL STRUCTURE, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

WIPO Patent Application WO/2018/192559

A1

A loaded highly selective dual-metal catalyst having a core-shell structure, a preparation method therefor and the application thereof, wherein SBA-15 is used as a carrier, Pt is the active ingredient, and a 3d transition metal is used as an assistant. The 3d transition metal is used with Pt to form a dual-metal catalyst having a core-shell structure. In one aspect, the addition of the 3d metal in the core leads to the reduction of the d-band center for surface Pt atoms and weakens the adsorption to propylene, thereby increasing the selectiveness towards propylene; in another aspect, with the addition of the 3d transition metal, the aim of reducing the usage of Pt may be achieved, thereby reducing the amount of Pt, and allowing a higher efficiency in the use of Pt. The catalyst is applicable in a hydrogen atmosphere, thus having a good result for preparing propylene by means of the dehydrogenation of propane and causing high dehydrogenation activity under high temperature conditions. The overall selectivity of propylene may reach 85%, which achieves high propylene selectivity.

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GONG JINLONG (CN)
CAI WEITING (CN)
MU RENTAO (CN)
ZENG LIANG (CN)

PCT/CN2018/083832

October 25, 2018

April 20, 2018

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UNIV TIANJIN (CN)

B01J23/74; B01J23/42; B01J35/00; C07C5/333; C07C11/06

WO2016072755A1

2016-05-12

CN102746087A	2012-10-24
CN103028400A	2013-04-10
CN104084198A	2014-10-08

TIANJIN CZTC IP FIRM (CN)

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