SILICON-ALUMINUM MOLECULAR SIEVE CATALYST, AND PREPARATION AND APPLICATION THEREOF

SILICON-ALUMINUM MOLECULAR SIEVE CATALYST, AND PREPARATION AND APPLICATION THEREOF

Disclosed is an aluminosilicate molecular sieve catalyst, its preparation and application thereof, the catalyst shows a desorption curve having three peaks P1, P2 and P3 in its NH3-TPD pattern, and the desorption temperatures corresponding to the summits of the three peaks P1, P2 and P3 are respecti...

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Bibliographische Detailangaben
Hauptverfasser: WANG, Darui, SUN, Hongmin, XUE, Mingwei, HE, Junlin, YANG, Weimin, LIU, Wei, HUAN, Mingyao
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Zusammenfassung:Disclosed is an aluminosilicate molecular sieve catalyst, its preparation and application thereof, the catalyst shows a desorption curve having three peaks P1, P2 and P3 in its NH3-TPD pattern, and the desorption temperatures corresponding to the summits of the three peaks P1, P2 and P3 are respectively in a range of 180-220 °C, 250-290 °C and 370-410 °C. The catalyst shows a higher activity, selectivity and stability when used for producing alkylaromatic hydrocarbons by gas-phase alkylation of aromatics with olefins.