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Received March 7, 2016
Accepted May 7, 2016
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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CFD study on the radial distribution of coolants in the inlet section of rod-baffle-multi-tubular reactor

1Key Laboratory for Green Chemical Technology of the Ministry of Education, Tianjin University R&D Center for Petrochemical Technology, Tianjin 300072, China 2Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
Korean Journal of Chemical Engineering, March 2017, 34(3), 651-663(13), 10.1007/s11814-016-0133-3
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Abstract

CFD method was employed to investigate the radial distribution of coolants in the inlet section of rod baffle multi-tubular reactor. It was found that the reactor had poor distribution of coolants. In view of this problem, the detailed structures of incident channel, shape of baffle ring and distance between tube plate and the first rod baffle were discussed to study their effect on the radial distribution. The simulation results showed that incident channels 0#, 1#, 3#, 5# and 6# could improve radial distribution of coolants significantly, and the effect of incident channels 2# and 4# was relatively limited. The zigzag baffle ring was proved to prevent short pass near the shell wall. In addition, the radial distribution of coolants was also improved with distance between tube plate and the first rod baffle increasing from 85 mm to 242mm. The simulation results can provide guidance for designing multi-tubular reactor with rod baffles.

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