A CFD model for gas uniform distribution in turbulent flow for the production of titanium pigment in chloride process

Yadong Li; Gang Xie; Ting Lei; Chongjun Bao; Lin Tian; Yanqing Hou

doi:10.1016/j.cjche.2016.04.051

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A CFD model for gas uniform distribution in turbulent flow for the production of titanium pigment in chloride process

第25届中国过程控制会议专栏 | Updated：2026-01-06

- A CFD model for gas uniform distribution in turbulent flow for the production of titanium pigment in chloride process
- A CFD model for gas uniform distribution in turbulent flow for the production of titanium pigment in chloride process
- 中国化学工程学报（英文版） 2016年第6期页码：749-756
- Affiliations：
  
  1. State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology,Kunming,China,650093
  2. 2 Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology,Kunming,China,650093
  3. 3 Kunming Metallurgical Research Institute,Kunming,China,650031
  4. 4 Key Laboratory of Pressure Hydrometallurgy Technology Associated Non-Ferrous Metal Resources,Kunming,China,650031
  5. 5 Kunming Metallurgy College,Kunming,China,650033
- Author bio：
- Funds：
  
  Supported by the National Natural Science Foundation of China (21566015, 51404123), the Applied Basic Research Projects of Yunnan (2013FC002, 2013FC003, 2015FB126) and the Provincial Personnel Training Funds of Yunnan Province of China (KKSY201352109, KKPT201563013).
- DOI：10.1016/j.cjche.2016.04.051
  中图分类号：
- 纸质出版：2016
- Accepted：
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Yadong Li, Gang Xie, Ting Lei, 等. A CFD model for gas uniform distribution in turbulent flow for the production of titanium pigment in chloride process[J]. 中国化学工程学报（英文版）, 2016,(6):749-756.

Yadong Li, Gang Xie, Ting Lei, et al. A CFD model for gas uniform distribution in turbulent flow for the production of titanium pigment in chloride process[J]. Chinese Journal of Chemical Engineering, 2016, (6): 749-756.
Yadong Li, Gang Xie, Ting Lei, 等. A CFD model for gas uniform distribution in turbulent flow for the production of titanium pigment in chloride process[J]. 中国化学工程学报（英文版）, 2016,(6):749-756. DOI： 10.1016/j.cjche.2016.04.051.

Yadong Li, Gang Xie, Ting Lei, et al. A CFD model for gas uniform distribution in turbulent flow for the production of titanium pigment in chloride process[J]. Chinese Journal of Chemical Engineering, 2016, (6): 749-756. DOI： 10.1016/j.cjche.2016.04.051.

摘要

Abstract

The fluid dynamic behavior of feeding gas (TiCl

) in an annular channel affects the combination of O

and TiCl

in an oxidation reactor

a key piece of equipment in titanium pigment production. The numerical procedure was validated by a 3-dimensional gas flow in the annular channel. Applying the validated model

the flow characteristics of TiCl

in the oxidation reactor with a tangential inlet were simulated and characterized. The flow distribution with five rectifying rings of different structure was simulated and analyzed. The results showed that the rectifying ring improved the distribution uniformity of the pressure and outlet velocity. Compared to the original case without a rectifying ring

the non-uniformity of the pressure and outlet velocity could be reduced by up to 91% and 69% respectively. The rectifying ring #5

which can be installed and adjusted easily

ismore effective in realizing even distribution. In addition

installation of the rectifying ring effectively reduced the circulating flow in an annular channel as well as the total energy loss.

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