HEAT REMOVAL PIPE GROUP, AND APPLICATION THEREOF IN TEMPERATURE CONTROL OF FLUIDIZED-BED REACTOR AND FABRICATION OF UNSATURATED NITRILES

Title:

HEAT REMOVAL PIPE GROUP, AND APPLICATION THEREOF IN TEMPERATURE CONTROL OF FLUIDIZED-BED REACTOR AND FABRICATION OF UNSATURATED NITRILES

Document Type and Number:

WIPO Patent Application WO/2022/214068

Kind Code:

A1

Abstract:

A heat removal pipe group, a fluidized-bed reactor (1) provided with the heat removal pipe group, a method for using the heat removal pipe group to control the temperature of the fluidized-bed reactor (1), and a method for fabricating unsaturated nitriles. The heat removal pipe group comprises: at least one first heat removal pipe (10), which comprise n1 straight pipes a and n1-1 connecting pipe fittings for fluid communication between two adjacent straight pipes a; and at least one second heat removal pipe (20), which comprises n2 straight pipes b and n2-1 connecting pipe fittings for fluid communication between two adjacent straight pipes b. In a transverse plane along the direction perpendicular to the central axis of the fluidized-bed reactor (1), more than 50% of the straight pipes a in the first heat removal pipe (10) are within the range of a central part of the cross section, while less than 50% of the straight pipes b in the second heat removal pipe (20) is within the range of the central part of the cross section. Furthermore, the ratio of the total outer contour perimeter Lb on the cross sections of all the straight pipes b of the second heat removal pipe (20) and the total outer contour perimeter La on the cross sections of all the straight pipes a of the first heat removal pipe (10) is greater than 1 and less than 1.25.

Inventors:

ZHAO LE (CN)
WU LIANGHUA (CN)

Application Number:

PCT/CN2022/085769

Publication Date:

October 13, 2022

Filing Date:

April 08, 2022

Export Citation:

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Assignee:

CHINA PETROLEUM & CHEM CORP (CN)
SHANGHAI RES INST PETROCHEMICAL TECH SINOPEC (CN)

International Classes:

B01J8/24; C07C253/26; C07C255/08; F28D13/00

Foreign References:

CN106492711A	2017-03-15
CN101507907A	2009-08-19
CN104941529A	2015-09-30
CN102010350A	2011-04-13
US6143915A	2000-11-07

Attorney, Agent or Firm:

ANJIE LAW FIRM (CN)

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