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Paper Information

Journal:   SCIENTIA IRANICA   2014 , Volume 21 , Number 3 (TRANSACTIONS C: CHEMISTRY AND CHEMICAL ENGINEERING); Page(s) 753 To 762.
 
Paper: 

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

 
 
Author(s):  ROOSTA H., VARAMINIAN F.*, KHOSHARAY SH.
 
* SCHOOL OF CHEMICAL, GAS AND PETROLEUM ENGINEERING, SEMNAN UNIVERSITY, SEMNAN, IRAN
 
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.

 
Keyword(s): GAS HYDRATE, KINETICS, CARBON DIOXIDE, SURFACTANT, THERMODYNAMIC ADDITIVE
 
 
References: 
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Click to Cite.
APA: Copy

ROOSTA, H., & VARAMINIAN, F., & KHOSHARAY, S. (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. https://www.sid.ir/en/journal/ViewPaper.aspx?id=406147



Vancouver: Copy

ROOSTA H., VARAMINIAN F., KHOSHARAY SH.. EXPERIMENTAL STUDY OF CO2 HYDRATE FORMATION KINETICS WITH AND WITHOUT KINETIC AND THERMODYNAMIC PROMOTERS. SCIENTIA IRANICA. 2014 [cited 2021May07];21(3 (TRANSACTIONS C: CHEMISTRY AND CHEMICAL ENGINEERING)):753-762. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=406147



IEEE: Copy

ROOSTA, H., VARAMINIAN, F., KHOSHARAY, S., 2014. EXPERIMENTAL STUDY OF CO2 HYDRATE FORMATION KINETICS WITH AND WITHOUT KINETIC AND THERMODYNAMIC PROMOTERS. SCIENTIA IRANICA, [online] 21(3 (TRANSACTIONS C: CHEMISTRY AND CHEMICAL ENGINEERING)), pp.753-762. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=406147.



 
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