Title:
酸触媒上でのイソブタノールの同時脱水・骨格異性化
Document Type and Number:
Japanese Patent JP5784646
Kind Code:
B2
Abstract:
The present invention (in a first embodiment) relates to a process for the simultaneous dehydration and skeletal isomerization of isobutanol to make substantially corresponding olefins, having the same number of carbons and consisting essentially of a mixture of n-butenes and iso-butene, said process comprising: a) introducing in a reactor a stream (A) comprising isobutanol, optionally water, optionally an inert component, b) contacting said stream with a catalyst in said reactor at conditions effective to dehydrate and skeletal isomerize at least a portion of the isobutanol to make a mixture of n-butenes and iso-butene, c) recovering from said reactor a stream (B), removing water, the inert component if any and unconverted isobutanol if any to get a mixture of n-butenes and iso-butene, Wherein, the WHSV of the isobutanol is at least 1 h−1 or the temperature is from 200° C. to 600° C. and the catalyst is capable to make simultaneously the dehydration and skeletal isomerization of butene. The catalyst is a crystalline silicate of the group FER, MWW, EUO, MFS, ZSM-48, MTT, MFI, MEL or TON having Si/Al higher than 10, or a dealuminated crystalline silicate of the group FER, MWW, EUO, MFS, ZSM-48, MTT, MFI, MEL or TON having Si/Al higher than 10, or a phosphorus modified crystalline silicate of the group FER, MWW, EUO, MFS, ZSM-48, MTT, MFI, MEL or TON having Si/Al higher than 10, or a silicoaluminaphosphate molecular sieve of the group AEL, or a silicated, zirconated or titanated or fluorinated alumina. Advantageously the stream (B) is fractionated in a step d) to produce a n-butenes stream (N) and to remove the essential part of isobutene optionally recycled with stream (A) to the dehydration/isomerization reactor of step b).
Inventors:
Adam, Cindy
Minu, Delphin
Nesterenko, Nikolai
Van Dong, Sandel
Dato Jean-Pierre
Minu, Delphin
Nesterenko, Nikolai
Van Dong, Sandel
Dato Jean-Pierre
Application Number:
JP2012557529A
Publication Date:
September 24, 2015
Filing Date:
March 15, 2011
Export Citation:
Assignee:
Total Research and Technology Fueri Yui
International Classes:
C07C6/04; B01J29/40; B01J29/65; C07C1/24; C07C7/09; C07C11/08; C07C11/09
Domestic Patent References:
| JP11514337A | ||||
| JP2005200365A |
Foreign References:
| WO2009098262A1 | ||||
| WO2009098268A1 | ||||
| WO2005110951A1 |
Attorney, Agent or Firm:
Takashi Koshiba
Hiroshi Koshiba
Hiroshi Koshiba