Experimental measurements and modelling of carbon dioxide hydrate phase equilibrium with and without ethanol

被引：36

作者：

Ferrari, Paolo F. ^{[1
]}

Guembaroski, Amanda Z. ^{[1
]}

Marcelino Neto, Moises A. ^{[1
]}

Morales, Rigoberto E. M. ^{[1
]}

Sum, Amadeu K. ^{[2
]}

机构：

[1] Fed Technol Univ Parana, NUEM Multiphase Flow Ctr, Grad Program Mech & Mat Engn, Curitiba, PR, Brazil

[2] Colorado Sch Mines, Dept Chem & Biol Engn, Golden, CO 80401 USA

来源：

FLUID PHASE EQUILIBRIA | 2016年 / 413卷

关键词：

Hydrates; Carbon dioxide; Ethanol; Phase equilibria; EQUATION-OF-STATE; NEXT-GENERATION; DISSOCIATION PRESSURES; CO2; HYDRATE; WATER; PREDICTION; CLATHRATE; TEMPERATURE; PURE;

D O I：

10.1016/j.fluid.2015.10.008

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this study, three-phase equilibrium conditions of liquid water-hydrate-vapour (L-W-H-V) were experimentally determined for carbon dioxide hydrates with and without ethanol, a thermodynamic hydrate inhibitor, at temperatures ranging from 275.65 to 281.65 K and pressures up to 3.5 MPa. A thermodynamic model for predicting hydrate dissociation conditions was developed. The model was based on the van der Waals-Platteeuw statistical model for the solid hydrate phase, and on the Cubic Plus Association (CPA) equation of state for the vapour and liquid phases. The Kihara potential parameters for the hydrate model were estimated using experimental and literature (L-W-H-V) equilibrium data. The agreement between the experimental and the predicted dissociation pressure was in general acceptable, with an average absolute deviation of about 2.10%. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：176 / 183

页数：8

共 49 条

[1] HYDRATES OF CARBON-DIOXIDE AND METHANE MIXTURES [J].

ADISASMITO, S ;

FRANK, RJ ;

SLOAN, ED .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1991, 36 (01) :68-71

[2]

[Anonymous], 2014, US GUID MOD PHYS PRO

[3] The next generation of hydrate prediction - Part III. Gibbs energy minimization formalism [J].

Ballard, AL ;

Sloan, ED .

FLUID PHASE EQUILIBRIA, 2004, 218 (01) :15-31

[4] The next generation of hydrate prediction I. Hydrate standard states and incorporation of spectroscopy [J].

Ballard, AL ;

Sloan, ED .

FLUID PHASE EQUILIBRIA, 2002, 194 :371-383

[5] The next generation of hydrate prediction IV - A comparison of available hydrate prediction programs [J].

Ballard, L ;

Sloan, ED .

FLUID PHASE EQUILIBRIA, 2004, 216 (02) :257-270

[6] On the phase behaviour of the (carbon dioxide plus water) systems at low temperatures: Experimental and modelling [J].

Chapoy, Antonin ;

Haghighi, Hooman ;

Burgass, Rod ;

Tohidi, Bahman .

JOURNAL OF CHEMICAL THERMODYNAMICS, 2012, 47 :6-12

[7]

Deaton W., 1946, Gas hydrates and their relation to the operation of natural-gas pipe lines

[8] EQUILIBRIUM CONDITIONS FOR CARBON-DIOXIDE HYDRATE FORMATION IN AQUEOUS-ELECTROLYTE SOLUTIONS [J].

DHOLABHAI, PD ;

KALOGERAKIS, N ;

BISHNOI, PR .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1993, 38 (04) :650-654

[9] High-pressure fluid-phase equilibria: Experimental methods and systems investigated (2000-2004) [J].

Dohrn, Ralf ;

Peper, Stephanie ;

Fonseca, Jose M. S. .

FLUID PHASE EQUILIBRIA, 2010, 288 (1-2) :1-54

[10]

Elliot J. R., 1999, PRENTICE HALL INT SE

← 1 2 3 4 5 →