Evaluating cubic equations of state for calculation of vapor–liquid equilibrium of CO2 and CO2-mixtures for CO2 capture and storage processes

Li, Hailong; Yan, Jinyue

doi:10.1016/j.apenergy.2008.05.018

Cited by 178 publications

(74 citation statements)

References 42 publications

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“…To date, no EOS is specifically recommended for CO 2 mixtures, but the ability to accurately predict the Vapour Liquid Equilibrium (VLE), density and speed of sound is considered the best way to gauge any weaknesses or strengths of EOS [2,8,38,39]. Li et al [2,8] has not been implemented in CFD models of decompression or outflow models to date , though it is currently the reference EOS for natural gas [50].…”

Section: Computational Fluid Dynamics (Cfd) Technique Have Been Develmentioning

confidence: 99%

Decompression wave speed in CO2 mixtures: CFD modelling with the GERG-2008 equation of state

et al. 2015

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The development of CO2 pipelines for Carbon Capture and Storage (CCS) raises new questions regarding the control of ductile fracture propagation and fracture arrest toughness criteria. The decompression behaviour in the fluid must be determined accurately in order to estimate the proper pipe toughness. However, anthropogenic CO2 may contain impurities that can modify the fluid decompression characteristics quite significantly. To determine the decompression wave speed in CO2 mixtures, the thermodynamic properties of these mixtures must be determined by using an accurate equation of state. In this paper we present a new decompression model developed using the Computational Fluid Dynamics (CFD) package ANSYS Fluent. The GERG-2008 Equation of State (EOS) was implemented into this model through User Defined Functions (UDF) to predict the thermodynamic properties of CO2 mixtures. The model predictions were in good agreement with the experimental data of two 'shock tube' tests. A range of representative CO2 mixtures was examined in terms of the changes in fluid properties from the initial conditions, with time and distance, immediately after a sudden pipeline opening at one end. Phase changes that may occur within the fluid due to condensation of 'impurities' in the fluid were also investigated. Simulations were also conducted to examine how the initial temperature and impurities would affect the decompression wave speed.

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Section: Computational Fluid Dynamics (Cfd) Technique Have Been Develmentioning

confidence: 99%

Decompression wave speed in CO2 mixtures: CFD modelling with the GERG-2008 equation of state

et al. 2015

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“…As such, several studies have attempted to quantify the effect of non-condensable gases on CO 2 compression. In particular, Li et al (2009) have concluded that power demand in single-stage gas-phase compression increases with the concentration of N 2 , H 2 , O 2 and Ar found in oxy-fuel derived CO 2 . Similar conclusions have been made by Aspelund and Jordal (2007) who examined the variation in nitrogen content in a mixture on the compression power demand in direct gas-phase compression.…”

Section: Introductionmentioning

confidence: 99%

Impact of stream impurities on compressor power requirements for CO2 pipeline transportation

Martynov

Daud

Mahgerefteh

et al. 2016

International Journal of Greenhouse Gas Control

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Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/) eprints@whiterose.ac.uk https://eprints.whiterose.ac.uk/ Reuse Unless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. liquefaction and pumping. The study shows that for all the compression options examined, the compression power reduces with the increase in the purity of the CO 2 stream, while the inter-stage cooling duty is predicted to be significantly higher than the compression power demand. For CO 2 streams carrying less than 5% impurities, multistage compression combined with liquefaction and subsequent pumping from ca 62 bar pressure can offer higher efficiency than conventional gas-phase compression. In the case of a raw/dehumidified oxy-fuel CO 2 stream of ca 85% purity, subcritical liquefaction at 62 bar pressure is shown to increase the cooling duty by ca 50% as compared to pure CO 2 .

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“…2 and Ar using many of the experimental data presented in this work [5,72,73]. The EOS evaluated were PR, RK, SRK, PT, 3P1T [74], PR-Peneloux [75], SRK-Peneloux [76], and the improved SRK [77].…”

Section: Cubic Eosmentioning

confidence: 99%

PVTxy properties of CO2 mixtures relevant for CO2 capture, transport and storage: Review of available experimental data and theoretical models

et al. 2011

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Evaluating cubic equations of state for calculation of vapor–liquid equilibrium of CO2 and CO2-mixtures for CO2 capture and storage processes

Cited by 178 publications

References 42 publications

Decompression wave speed in CO2 mixtures: CFD modelling with the GERG-2008 equation of state

Decompression wave speed in CO2 mixtures: CFD modelling with the GERG-2008 equation of state

Impact of stream impurities on compressor power requirements for CO2 pipeline transportation

PVTxy properties of CO2 mixtures relevant for CO2 capture, transport and storage: Review of available experimental data and theoretical models

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