The combination of 1-octyl-3-methylimidazolium tetrafluorborate with TBAB or THF on CO<sub>2</sub> hydrate formation and CH<sub>4</sub> separation from biogas

Gang Yue; Aixian Liu; Qiang Sun; Xingxun Li; Wenjie Lan; Lanying Yang; Xuqiang Guo

doi:10.1016/j.cjche.2018.03.014

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The combination of 1-octyl-3-methylimidazolium tetrafluorborate with TBAB or THF on CO₂ hydrate formation and CH₄ separation from biogas

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

- The combination of 1-octyl-3-methylimidazolium tetrafluorborate with TBAB or THF on CO₂ hydrate formation and CH₄ separation from biogas
- The combination of 1-octyl-3-methylimidazolium tetrafluorborate with TBAB or THF on CO₂ hydrate formation and CH₄ separation from biogas
- 中国化学工程学报（英文版） 2018年26卷第12期页码：2495-2502
- Affiliations：
  
  1. 2 China University of Petroleum-, Beijing,Beijing,China,102249
  2. 3 China University of Petroleum-Beijing At Karamay,Xinjiang,China,834000
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.03.014
  中图分类号：
- 纸质出版：2018
- Accepted：
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Gang Yue, Aixian Liu, Qiang Sun, 等. The combination of 1-octyl-3-methylimidazolium tetrafluorborate with TBAB or THF on CO₂ hydrate formation and CH₄ separation from biogas[J]. 中国化学工程学报（英文版）, 2018,26(12):2495-2502. DOI: 10.1016/j.cjche.2018.03.014.

hydrate formation and CH
Gang Yue, Aixian Liu, Qiang Sun, 等. The combination of 1-octyl-3-methylimidazolium tetrafluorborate with TBAB or THF on CO₂ hydrate formation and CH₄ separation from biogas[J]. 中国化学工程学报（英文版）, 2018,26(12):2495-2502. DOI: 10.1016/j.cjche.2018.03.014. DOI：

hydrate formation and CH DOI： 10.1016/j.cjche.2018.03.014.

摘要

Abstract

min

]

was used in this work to combine with TBAB or THF for the investigation about thermodynamic and kinetic additives on CO

and CH

/CO

hydrates. The results show that[C

min

]

has the inhibition effect on the equilibrium of hydrate formation. About the kinetic study

min

]

could improve the rate of CO

hydrate formation and increase the gas uptake in hydrate phase. At the same time

the combination of TBAB and[C

min

]

could increase the mole friction of CH

in residual gas comparing with the data in THF solution. CH

separation efficiency was strongly enhanced. Since that the size of CO

and CH

molecules are similar

and CO

could form the similar hydrate

so the recovery of CH

from biogas decreases lightly. The CH

content in biogas can purified from 67 mol% to 77 mol% after one-stage hydrate formation. In addition

the combination of THF and[C

min

]

do not have ob

vious promoting effect on CH

separation comparing with the gas separation results in pure THF solution.

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The combination of 1-octyl-3-methylimidazolium tetrafluorborate with TBAB or THF on CO2 hydrate formation and CH4 separation from biogas

The combination of 1-octyl-3-methylimidazolium tetrafluorborate with TBAB or THF on CO2 hydrate formation and CH4 separation from biogas

DOI：10.1016/j.cjche.2018.03.014

摘要

Abstract

关键词

Keywords

references

The combination of 1-octyl-3-methylimidazolium tetrafluorborate with TBAB or THF on CO₂ hydrate formation and CH₄ separation from biogas

The combination of 1-octyl-3-methylimidazolium tetrafluorborate with TBAB or THF on CO₂ hydrate formation and CH₄ separation from biogas