Centrifugation equilibrium of natural gas

Marcelo Castier, Frederico W. Tavares

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The problem of determining the pressure and composition profiles of natural gas under centrifugation is formulated and solved as the minimization of a modified Helmholtz function that includes the contribution of the centrifugal field. Fluid properties are calculated using the Peng-Robinson equation of state but the procedure can be readily extended to use other thermodynamic models. The simulations indicate that there may be a liquid phase in the centrifugation cell. However, even in cases with a single gas phase, there are large differences in composition, pressure, and density between the regions close to and away from the rotation axis, confirming the idea that centrifugation might be a useful method for removing contaminants from natural gas.

Original languageEnglish
Pages (from-to)2927-2935
Number of pages9
JournalChemical Engineering Science
Volume60
Issue number11
DOIs
Publication statusPublished - Jun 2005
Externally publishedYes

Fingerprint

Natural Gas
Centrifugation
Natural gas
Hermann Von Helmholtz
Equation of State
Thermodynamics
Liquid
Chemical analysis
Equations of state
Fluid
Cell
Gases
Impurities
Simulation
Fluids
Liquids
Model
Gas
Profile

Keywords

  • Centrifugation
  • Equations of state
  • Natural gas
  • Phase equilibrium
  • Thermodynamic models

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Centrifugation equilibrium of natural gas. / Castier, Marcelo; Tavares, Frederico W.

In: Chemical Engineering Science, Vol. 60, No. 11, 06.2005, p. 2927-2935.

Research output: Contribution to journalArticle

Castier, Marcelo ; Tavares, Frederico W. / Centrifugation equilibrium of natural gas. In: Chemical Engineering Science. 2005 ; Vol. 60, No. 11. pp. 2927-2935.
@article{219c938bda554caabb8b5f3b7dde43d1,
title = "Centrifugation equilibrium of natural gas",
abstract = "The problem of determining the pressure and composition profiles of natural gas under centrifugation is formulated and solved as the minimization of a modified Helmholtz function that includes the contribution of the centrifugal field. Fluid properties are calculated using the Peng-Robinson equation of state but the procedure can be readily extended to use other thermodynamic models. The simulations indicate that there may be a liquid phase in the centrifugation cell. However, even in cases with a single gas phase, there are large differences in composition, pressure, and density between the regions close to and away from the rotation axis, confirming the idea that centrifugation might be a useful method for removing contaminants from natural gas.",
keywords = "Centrifugation, Equations of state, Natural gas, Phase equilibrium, Thermodynamic models",
author = "Marcelo Castier and Tavares, {Frederico W.}",
year = "2005",
month = "6",
doi = "10.1016/j.ces.2004.12.027",
language = "English",
volume = "60",
pages = "2927--2935",
journal = "Chemical Engineering Science",
issn = "0009-2509",
publisher = "Elsevier BV",
number = "11",

}

TY - JOUR

T1 - Centrifugation equilibrium of natural gas

AU - Castier, Marcelo

AU - Tavares, Frederico W.

PY - 2005/6

Y1 - 2005/6

N2 - The problem of determining the pressure and composition profiles of natural gas under centrifugation is formulated and solved as the minimization of a modified Helmholtz function that includes the contribution of the centrifugal field. Fluid properties are calculated using the Peng-Robinson equation of state but the procedure can be readily extended to use other thermodynamic models. The simulations indicate that there may be a liquid phase in the centrifugation cell. However, even in cases with a single gas phase, there are large differences in composition, pressure, and density between the regions close to and away from the rotation axis, confirming the idea that centrifugation might be a useful method for removing contaminants from natural gas.

AB - The problem of determining the pressure and composition profiles of natural gas under centrifugation is formulated and solved as the minimization of a modified Helmholtz function that includes the contribution of the centrifugal field. Fluid properties are calculated using the Peng-Robinson equation of state but the procedure can be readily extended to use other thermodynamic models. The simulations indicate that there may be a liquid phase in the centrifugation cell. However, even in cases with a single gas phase, there are large differences in composition, pressure, and density between the regions close to and away from the rotation axis, confirming the idea that centrifugation might be a useful method for removing contaminants from natural gas.

KW - Centrifugation

KW - Equations of state

KW - Natural gas

KW - Phase equilibrium

KW - Thermodynamic models

UR - http://www.scopus.com/inward/record.url?scp=15944364153&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=15944364153&partnerID=8YFLogxK

U2 - 10.1016/j.ces.2004.12.027

DO - 10.1016/j.ces.2004.12.027

M3 - Article

AN - SCOPUS:15944364153

VL - 60

SP - 2927

EP - 2935

JO - Chemical Engineering Science

JF - Chemical Engineering Science

SN - 0009-2509

IS - 11

ER -