EXPERIMENTAL STUDY OF CO2 HYDRATE FORMATION KINETICS WITH AND WITHOUT KINETIC AND THERMODYNAMIC PROMOTERS

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ROOSTA H.; VARAMINIAN F.; KHOSHARAY SH.

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Journal Paper

Paper Information

Journal: Scientia Iranica Year:2014 | Volume:21 | Issue:3 (TRANSACTIONS C: CHEMISTRY AND CHEMICAL ENGINEERING) Page(s): 753-762

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Title

EXPERIMENTAL STUDY OF CO2 HYDRATE FORMATION KINETICS WITH AND WITHOUT KINETIC AND THERMODYNAMIC PROMOTERS

Author(s)

ROOSTA H. | VARAMINIAN F. | KHOSHARAY SH. | Issue Writer Certificate

Keywords

GAS HYDRATE

KINETICS

CARBON DIOXIDE

SURFACTANT

THERMODYNAMIC ADDITIVE

Abstract

In this work, an experimental study of CO2 hydrate formation KINETICS was undertaken. The eects of stirring rate and initial pressure on the hydrate formation rate were investigated. The results showed that a stirring rate of 600 rpm was optimum for increasing the CO2 hydrate formation rate, especially at lower temperatures. The eects of additives on the hydrate formation rate were also investigated. Three SURFACTANTs: Sodium Dodecyl Sulfate (SDS), Dodecyl Trimethyl Ammonium Bromide (DTAB) and Triton X-100 (TX-100), were tested. DTAB and TX-100 were new SURFACTANTs for investigation into CO2 hydrate formation KINETICS. SDS and DTAB did not signi cantly aect the hydrate formation rate at concentrations of 300 and 500 ppm, whereas SDS increased, and DTAB insigni cantly decreased the hydrate formation rate at 1000 ppm. Furthermore, TX-100 negligibly decreased the hydrate formation rate at 300 and 500 ppm, but signi cantly decreased the rate at 1000 ppm. In contrast, the application of THERMODYNAMIC ADDITIVEs, tetrahydrofuran (THF) and tetra-n-butyl ammonium bromide (TBAB), at low concentrations, increased the hydrate formation rate, and these additives aected the rate of hydrate formation in a manner similar to kinetic promoters.

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APA: Copy

ROOSTA, H., VARAMINIAN, F., & KHOSHARAY, SH.. (2014). EXPERIMENTAL STUDY OF CO₂ HYDRATE FORMATION KINETICS WITH AND WITHOUT KINETIC AND THERMODYNAMIC PROMOTERS. SCIENTIA IRANICA, 21(3 (TRANSACTIONS C: CHEMISTRY AND CHEMICAL ENGINEERING)), 753-762. SID. https://sid.ir/paper/290257/en

Vancouver: Copy

ROOSTA H., VARAMINIAN F., KHOSHARAY SH.. EXPERIMENTAL STUDY OF CO₂ HYDRATE FORMATION KINETICS WITH AND WITHOUT KINETIC AND THERMODYNAMIC PROMOTERS. SCIENTIA IRANICA[Internet]. 2014;21(3 (TRANSACTIONS C: CHEMISTRY AND CHEMICAL ENGINEERING)):753-762. Available from: https://sid.ir/paper/290257/en

IEEE: Copy

H. ROOSTA, F. VARAMINIAN, and SH. KHOSHARAY, “EXPERIMENTAL STUDY OF CO₂ HYDRATE FORMATION KINETICS WITH AND WITHOUT KINETIC AND THERMODYNAMIC PROMOTERS,” SCIENTIA IRANICA, vol. 21, no. 3 (TRANSACTIONS C: CHEMISTRY AND CHEMICAL ENGINEERING), pp. 753–762, 2014, [Online]. Available: https://sid.ir/paper/290257/en

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