Experimental correlation for the formation rate of CO2 hydrate with THF (tetrahydrofuran) for cooling application

Qibei Sun, Yong Tae Kang

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The CO2 hydrate formation experiments with THF (tetrahydrofuran) are performed in a stirred semi-bath reactor. The experimental data on CO2 hydrate formation are obtained at constant pressure and temperature with the low driving force conditions. The experimental temperature is above 279 K, which is high enough to prevent the formation of only THF hydrate. The Gibbs free energy difference by the pressure variation is chosen as the driving force. The experimental results confirm that the THF drastically reduces the required CO2 hydrate formation pressure. A two-parameter kinetic model based on the Chen-Guo model is developed to predict the CO2 hydrate formation rate and to correlate the experimental data. It is found that the experimental correlation based on the present estimation model fits well with the experimental results and can predict the CO2 hydrate formation rate satisfyingly for cooling application.

Original languageEnglish
Pages (from-to)712-719
Number of pages8
JournalEnergy
Volume91
DOIs
Publication statusPublished - 2015 Nov 1

Fingerprint

Hydrates
Cooling
Gibbs free energy
Kinetic parameters
Temperature
Experiments

Keywords

  • CO
  • Experimental correlation
  • Hydrate formation
  • Kinetic model
  • THF

ASJC Scopus subject areas

  • Energy(all)
  • Pollution

Cite this

Experimental correlation for the formation rate of CO2 hydrate with THF (tetrahydrofuran) for cooling application. / Sun, Qibei; Kang, Yong Tae.

In: Energy, Vol. 91, 01.11.2015, p. 712-719.

Research output: Contribution to journalArticle

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N2 - The CO2 hydrate formation experiments with THF (tetrahydrofuran) are performed in a stirred semi-bath reactor. The experimental data on CO2 hydrate formation are obtained at constant pressure and temperature with the low driving force conditions. The experimental temperature is above 279 K, which is high enough to prevent the formation of only THF hydrate. The Gibbs free energy difference by the pressure variation is chosen as the driving force. The experimental results confirm that the THF drastically reduces the required CO2 hydrate formation pressure. A two-parameter kinetic model based on the Chen-Guo model is developed to predict the CO2 hydrate formation rate and to correlate the experimental data. It is found that the experimental correlation based on the present estimation model fits well with the experimental results and can predict the CO2 hydrate formation rate satisfyingly for cooling application.

AB - The CO2 hydrate formation experiments with THF (tetrahydrofuran) are performed in a stirred semi-bath reactor. The experimental data on CO2 hydrate formation are obtained at constant pressure and temperature with the low driving force conditions. The experimental temperature is above 279 K, which is high enough to prevent the formation of only THF hydrate. The Gibbs free energy difference by the pressure variation is chosen as the driving force. The experimental results confirm that the THF drastically reduces the required CO2 hydrate formation pressure. A two-parameter kinetic model based on the Chen-Guo model is developed to predict the CO2 hydrate formation rate and to correlate the experimental data. It is found that the experimental correlation based on the present estimation model fits well with the experimental results and can predict the CO2 hydrate formation rate satisfyingly for cooling application.

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