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1. (WO2018046516) CATALYST COMPOSITION COMPRISING MODIFIED CRYSTALLINE ALUMINOSILICATE FOR DEHYDRATION OF ALCOHOLS

Pub. No.:    WO/2018/046516    International Application No.:    PCT/EP2017/072297
Publication Date: Fri Mar 16 00:59:59 CET 2018 International Filing Date: Thu Sep 07 01:59:59 CEST 2017
IPC: B01J 29/06
B01J 29/40
B01J 29/65
B01J 29/70
C01B 39/02
C07C 1/24
C07C 5/25
C07C 5/27
C07C 11/00
C07C 11/08
C07C 11/09
Applicants: TOTAL RESEARCH & TECHNOLOGY FELUY
IFP ENERGIES NOUVELLES
Inventors: NESTERENKO, Nikolai
DUPONT, Colin
COUPARD, Vincent
MAURY, Sylvie
HEINZ, Thibault
Title: CATALYST COMPOSITION COMPRISING MODIFIED CRYSTALLINE ALUMINOSILICATE FOR DEHYDRATION OF ALCOHOLS
Abstract:
Process for preparing a catalyst composition containing a modified crystalline aluminosilicate and a binder, wherein the catalyst composition comprises from 5 to 95 % by weight of crystalline aluminosilicate as based on the total weight of the catalyst composition, the process being remarkable in that it comprises a step of steaming said crystalline aluminosilicate: - at a temperature ranging from 100 °C to 380 °C; - under a gas phase atmosphere containing from 5 wt % to 100 wt % of steam; - at a pressure ranging from 2 to 200 bars; - at a partial pressure of H2O ranging from 2 to 200 bars; and - said steaming being performed during at least 30 min and up to 144 h; and in that the process also comprises a step of shaping, or of extruding, the crystalline aluminosilicate with a binder, wherein the binder is selected to comprise at least 85 wt % of silica as based on the total weight of the binder, and less than 1000 ppm by weight as based on the total weight of the binder of aluminium, gallium, boron, iron and/or chromium.