Title:
METHOD FOR PRODUCING ISOBUTYLENE, METHOD FOR PRODUCING METHACRYLIC ACID, AND METHOD FOR PRODUCING METHYL METHACRYLATE
Document Type and Number:
WIPO Patent Application WO/2021/200795
Kind Code:
A1
Abstract:
The present invention provides a method for producing isobutylene from isobutanol with high selectivity under pressure, while suppressing decrease in the conversion rate of isobutanol. A method for producing isobutylene according to the present invention produces isobutylene from isobutanol by bringing a starting material gas that contains isobutanol into contact with a catalyst. This method for producing isobutylene produces isobutylene from isobutanol by bringing the starting material gas that contains isobutanol into contact with the catalyst at a linear velocity of 1.20 cm/s or more at an absolute pressure of 120 kPa or more.
Inventors:
SUZUKI TATSUYA (JP)
KATOU YUUKI (JP)
NINOMIYA WATARU (JP)
KATOU YUUKI (JP)
NINOMIYA WATARU (JP)
Application Number:
PCT/JP2021/013218
Publication Date:
October 07, 2021
Filing Date:
March 29, 2021
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
C07C1/24; B01J21/04; C07C11/09; C07C51/21; C07C57/05; C07C67/08; C07C69/54
Domestic Patent References:
| WO2015170686A1 | 2015-11-12 | |||
| WO2012016785A1 | 2012-02-09 | |||
| WO2015170686A1 | 2015-11-12 |
Foreign References:
| JP2020064207A | 2020-04-23 |
Other References:
ARNBY, K ET AL.: "Characterization of Pt/y-A12O3 catalysts deactivated by hexamethyldisiloxane", APPLIED CATALYSIS B: ENVIRONMENTAL, vol. 54, 2004, pages 1 - 7, XP004564923
CHAPLITS, D N : "Dehydration of tertiary butyl alcohol in a reactor of anew design", KHIMICHESKAYA PROMYSHLENNOST, vol. 42, no. 10, 30 November 1965 (1965-11-30), RU , pages 734 - 736, XP009539891, ISSN: 0023-110X
BANZARAKTSAEVA, S P ET AL.: "Ethanol-to-ethylene dehydration on acid-modified ring-shaped alumina catalyst in a tubular reactor", CHEMICAL ENGINEERING JOURNAL, vol. 374, 2019, pages 605 - 618, XP085749055, DOI: 10.1016/j.cej.2019.05.149
See also references of EP 4129962A4
CHAPLITS, D N : "Dehydration of tertiary butyl alcohol in a reactor of anew design", KHIMICHESKAYA PROMYSHLENNOST, vol. 42, no. 10, 30 November 1965 (1965-11-30), RU , pages 734 - 736, XP009539891, ISSN: 0023-110X
BANZARAKTSAEVA, S P ET AL.: "Ethanol-to-ethylene dehydration on acid-modified ring-shaped alumina catalyst in a tubular reactor", CHEMICAL ENGINEERING JOURNAL, vol. 374, 2019, pages 605 - 618, XP085749055, DOI: 10.1016/j.cej.2019.05.149
See also references of EP 4129962A4
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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