Title:
1,3-BUTADIENE MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/006252
Kind Code:
A1
Abstract:
In this 1,3-butadiene manufacturing method, an ethanol supply source material is vaporized with a vaporizer (104), the result is supplied to two or more parallel first reactors (108) and the ethanol is converted to acetaldehyde in the presence of a first catalyst, a generated intermediate gas is supplied to a second reactor (110) and the ethanol and acetaldehyde are converted to 1,3-butadiene in the presence of a second catalyst, a crude generated gas including the 1,3-butadiene is refined with a gas-liquid separator (112), a first distillation column (114), a fourth reactor (116), and a second distillation column (118), an acetaldehyde-including gas obtained with the second distillation column (118) and/or a portion of an ethanol-including gas is/are mixed with the intermediate gas, and the molar ratio (ethanol/acetaldehyde) in the intermediate gas is adjusted to 1-100.
Inventors:
YAGIHASHI NORITOSHI (JP)
NISHIYAMA HARUKA (JP)
NAKAMA YUKI (JP)
NISHIYAMA HARUKA (JP)
NAKAMA YUKI (JP)
Application Number:
PCT/JP2020/026485
Publication Date:
January 14, 2021
Filing Date:
July 06, 2020
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
International Classes:
C07C1/20; C07C7/04; C07C11/167
Domestic Patent References:
| WO2016111203A1 | 2016-07-14 |
Foreign References:
| JP2013516487A | 2013-05-13 | |||
| JP2019126001A | 2019-07-25 | |||
| JP2017532318W |
Other References:
See also references of EP 3995474A4
Attorney, Agent or Firm:
NISHIZAWA Kazuyoshi et al. (JP)
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