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Gas Hydrate Equilibrium Measurement of Methane + Carbon Dioxide + Tetrahydrofuran+ Water System at High CO2 Concentrations
Behzad Partoon, Omar Nashed, Zamzila Kassim, Khalik M. Sabil, , Bhajan Lal
Published in Elsevier Ltd
2016
Volume: 148
   
Pages: 1220 - 1224
Abstract
Application of gas hydrate in separation of carbon dioxide (CO2) form nitrogen in Carbon Capture and Storage (CCS) chain is recently studied by many researchers. Tetrahydrofuran (THF) is suggested as promoter for this process. The same process can be suggested for separation of CO2 from methane (CH4) for gas treatment and sweetening, especially for high CO2 content mixtures such as landfill gas. The first step in development of such process is understanding of the phase boundary of this mixture at different pressure-temperature condition and gas/liquid composition. In this work, gas hydrate phase boundary of CH4, CO2, THF and water at different pressure from 4.5 to 8.1 MPa is experimentally measured. CO2 mole fraction in gas phase is fixed at 0.7 and THF concentration in the liquid phase set at 0.03 mole fraction. Results show that presence of THF in the mixtures shift the phase boundary to the lower pressure / higher temperature condition. This effect is favorable for industrial applications. © 2016 The Authors. Published by Elsevier Ltd.
About the journal
JournalData powered by TypesetProcedia Engineering
PublisherData powered by TypesetElsevier Ltd
Open AccessNo
Concepts (20)
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    Carbon capture
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    Carbon dioxide
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    Gas hydrates
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    Hydration
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    Methane
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    Mixtures
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    Nitrogen
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    Organic solvents
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    Phase boundaries
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    Process engineering
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    Thermodynamics
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    Carbon capture and storages (ccs)
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    Different pressures
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    GAS HYDRATE EQUILIBRIA
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    HIGH CO<SUB>2</SUB> CONTENT
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    Lower pressures
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    Temperature conditions
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    Tetra-hydrofuran
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    Tetrahydrofurans
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    Gases