Title:
HEAT REMOVAL PIPE GROUP, METHOD FOR CONTROLLING REACTION TEMPERATURE, AND METHOD FOR FABRICATING UNSATURATED NITRILES
Document Type and Number:
WIPO Patent Application WO/2022/214069
Kind Code:
A1
Abstract:
A heat removal pipe group, a method for controlling the reaction temperature by using the heat removal pipe group, and a method for fabricating unsaturated nitriles. The heat removal pipe group comprises at least one first heat removal pipe (10) and at least one second heat removal pipe (20). The number of all straight pipes (5)a of the first heat removal pipe (10) is the same as the number of all straight pipes (5)b of the second heat removal pipe (20). Furthermore, the ratio of the total outer contour perimeter Lb on the cross sections of all the straight pipes (5)b of the second heat removal pipe (20) to the total outer contour perimeter La on the cross sections of all the straight pipes (5)a of the first heat removal pipe (10) is 1.25-2. The first heat removal pipe (10) and the second heat removal pipe (20) are linked and switched in a paired manner for the fine adjustment of the reaction temperature.
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Inventors:
ZHAO LE (CN)
WU LIANGHUA (CN)
WU LIANGHUA (CN)
Application Number:
PCT/CN2022/085770
Publication Date:
October 13, 2022
Filing Date:
April 08, 2022
Export Citation:
Assignee:
CHINA PETROLEUM & CHEM CORP (CN)
SHANGHAI RES INST PETROCHEMICAL TECH SINOPEC (CN)
SHANGHAI RES INST PETROCHEMICAL TECH SINOPEC (CN)
International Classes:
B01J8/24; C07C253/26; C07C255/08
Foreign References:
| CN106492711A | 2017-03-15 | |||
| CN104941529A | 2015-09-30 | |||
| CN101773808A | 2010-07-14 | |||
| CN107413285A | 2017-12-01 | |||
| CN108940137A | 2018-12-07 | |||
| CN110787737A | 2020-02-14 | |||
| CN102531958A | 2012-07-04 | |||
| US3983927A | 1976-10-05 |
Attorney, Agent or Firm:
ANJIE LAW FIRM (CN)
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