Title:
ENHANCED REACTION SYSTEM AND METHOD FOR PREPARING CYCLOHEXANONE BY SELECTIVE HYDROGENATION OF BENZENE
Document Type and Number:
WIPO Patent Application WO/2021/227136
Kind Code:
A1
Abstract:
An enhanced reaction system and method for preparing cyclohexanone by selective hydrogenation of benzene. The system comprises a hydrogenation reactor (10); the hydrogenation reactor (10) is provided with a discharge port (11), and the discharge port (11) is connected to a catalyst separator (20) for separating a catalyst in a reaction product; the bottom of a gas-liquid separator (80) is provided with an alcohol ketone liquid outlet (81), and the alcohol ketone liquid outlet (81) is connected to a cyclohexanone rectifying tower (90) for separating cyclohexanone; the side wall of the hydrogenation reactor (10) is provided with a first raw material inlet (12), and the first raw material inlet (12) is provided with a first micro-interface generator (101) for dispersing and crushing gas into bubbles; the side wall of an addition reactor (40) is provided with a second raw material inlet (41), and the second raw material inlet (41) is provided with a second micro-interface generator (401) for dispersing and crushing gas into bubbles. After the micro-interface generators are provided at the raw material inlets of the hydrogenation reactor (10) and the addition reactor (40), the mass transfer area between hydrogen and a liquid-phase material is increased, and the reaction efficiency is improved; moreover, the reaction temperature and pressure are reduced, and the safety and stability of the whole system are improved.
Inventors:
ZHANG ZHIBING (CN)
ZHOU ZHENG (CN)
ZHANG FENG (CN)
LI LEI (CN)
MENG WEIMIN (CN)
WANG BAORONG (CN)
YANG GAODONG (CN)
LUO HUAXUN (CN)
YANG GUOQIANG (CN)
TIAN HONGZHOU (CN)
CAO YU (CN)
ZHOU ZHENG (CN)
ZHANG FENG (CN)
LI LEI (CN)
MENG WEIMIN (CN)
WANG BAORONG (CN)
YANG GAODONG (CN)
LUO HUAXUN (CN)
YANG GUOQIANG (CN)
TIAN HONGZHOU (CN)
CAO YU (CN)
Application Number:
PCT/CN2020/092789
Publication Date:
November 18, 2021
Filing Date:
May 28, 2020
Export Citation:
Assignee:
NANJING YANCHANG REACTION TECH RESEARCH INSTITUTE CO LTD (CN)
International Classes:
C07C45/00; B01D3/00; C07C5/11; C07C13/20; C07C29/149; C07C29/80; C07C35/08; C07C45/82; C07C49/403; C07C67/04; C07C69/14
Domestic Patent References:
| WO2013052216A1 | 2013-04-11 |
Foreign References:
| CN111574341A | 2020-08-25 | |||
| CN108017498A | 2018-05-11 | |||
| CN210045215U | 2020-02-11 | |||
| CN210079476U | 2020-02-18 | |||
| CN104557465A | 2015-04-29 | |||
| CN108003017A | 2018-05-08 | |||
| CN107867986A | 2018-04-03 |
Other References:
ZHANG, ZHIBING ET AL.: "Overview of Microinterface Intensification in Multiphase Reaction Systems", CIESC JOURNAL, vol. 69, no. 1, 31 December 2018 (2018-12-31), ISSN: 0438-1557
Attorney, Agent or Firm:
BEIJING ZHONGSUO INTELLECTUAL PROPERTY AGENCY CO. LTD (CN)
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