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An Extended Corresponding States Equation of State (EoS) for CCS Industry

Abstract

For a good design of all the processes in Carbon Capture and Storage, the thermodynamics of the CO2 and CO2 mixtures should be accurately predicted. Among these mixtures are CO2-water systems that are very difficult to deal with due to the polar nature. In this work we suggest a new extended corresponding states equation of state (EoS) that can handle polar mixtures. The new EoS uses the Bender Modified Benedict-Webb-Rubin EoS as a reference equation. NH3, R23 and R503 are used as reference fluids with parameters from Polt. The EoS presented uses the Soave-Redlich-Kwong EoS with Huron Vidal mixing rules based approach to compute the scale factors. The evaluation of the new EoS is done over a large set of experimental data. The results show very high accuracy in predicting both phase equilibrium and densities

Category

Academic article

Client

  • Research Council of Norway (RCN) / 189978

Language

English

Author(s)

Affiliation

  • Norwegian University of Science and Technology
  • SINTEF Energy Research / Gassteknologi

Year

2015

Published in

Chemical Engineering Science (CES)

ISSN

0009-2509

Publisher

Elsevier

Volume

137

Page(s)

572 - 582

View this publication at Cristin