CO<sub>2</sub> absorption performance in a rotating disk reactor using DBU-glycerol as solvent

Hualing Duan; Kun Zhu; Houfang Lu; Changjun Liu; Kejing Wu; Yingying Liu; Bin Liang

doi:10.1016/j.cjche.2019.03.031

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CO₂ absorption performance in a rotating disk reactor using DBU-glycerol as solvent

Separation Science and Engineering | Updated：2026-01-06

- CO₂ absorption performance in a rotating disk reactor using DBU-glycerol as solvent
- Chinese Journal of Chemical Engineering Vol. 28, Issue 1, Pages: 104-113(2020)
- Affiliations：
  
  1. School of Chemical Engineering, Sichuan University,Chengdu,China,610065
  2. Institute of New Energy and Low Carbon Technology, Sichuan University,Chengdu,China,610065
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2019.03.031
  CLC：
- Published：2020
- Accepted：
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absorption performance in a rotating disk reactor using DBU-glycerol as solvent[J]. 中国化学工程学报, 2020, 28(1): 104-113.
DOI：

absorption performance in a rotating disk reactor using DBU-glycerol as solvent[J]. 中国化学工程学报, 2020, 28(1): 104-113. DOI： 10.1016/j.cjche.2019.03.031.

摘要

Abstract

Gas-liquid mass transfer of rotating disk reactor was studied in CO

absorption using 1

8-diazabicyclo-[5.4.0

]

-undec-7-ene (DBU)-glycerol solution as solvent. Effects of the rotating disk structure and various operation parameters on the CO

absorption rate and CO

removal efficiency were investigated. The rotating disk with optimal holes is conducive to mass transfer of CO

and the formation of thin liquid film at the opening increases the gas-liquid contact area. With the increase of rotating speed

the liquid flow pattern on the rotating disk surface changes from thin film flow to separated streams and creates extra liquid lines attached to the rim of the disk

which leads to a very complicated change on the CO

absorption rate and CO

removal efficiency. The overall gas-phase mass transfer coefficient increases 138% as the rotating speed increasing from 250 to 1400 r·min

-1

. Increasing temperature from 298 to 338 K can enhance the CO

absorption rate due to lowering the viscosity of the solvent. The rate-determined step for the absorption is focused on the gas side. The rotating disk reactor can effective

ly enhance the absorption of CO

with viscous DBU-glycerol solvents.

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⁰

CO2 absorption performance in a rotating disk reactor using DBU-glycerol as solvent

DOI：10.1016/j.cjche.2019.03.031

摘要

Abstract

关键词

Keywords

references

CO₂ absorption performance in a rotating disk reactor using DBU-glycerol as solvent