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A review on the solid–liquid–vapor phase equilibria of acid gases in methane

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journal contribution
submitted on 2023-03-15, 08:03 and posted on 2023-03-16, 06:23 authored by Hani Ababneh, Shaheen A. Al‐Muhtaseb

In spite of the increasing levels of greenhouse gases in the atmosphere, and their impact on the environment, the demand for natural/biogas will increase significantly in the coming few decades. To cover this demand, the global energy industry is continuously exploiting sour gas reserves located around the world. Nonetheless, sour gas has to be sweetened before the practical utilization of natural or biogas. The cryogenic separation technologies have emerged as a new technology to separate carbon dioxide (CO2) and hydrogen sulfide (H2S gases) from natural/biogas. The cryogenic separation produces less harmful gases, and can be less expensive to operate and maintain in comparison to the conventional technologies. To design cryogenic separation equipment, vapor–liquid equilibrium (VLE), solid–liquid equilibrium (SLE), solid–vapor equilibrium (SVE), and solid–liquid–vapor equilibrium (SLVE) data for the corresponding binary systems (of CH4-CO2, CH4-H2S, and H2S-CO2) and ternary system (of CH4-H2S-CO2) are required. The main target of this article is to review the SLVE data for the acid gases (CO2 and H2S) in methane (CH4) as the main constituent of natural/biogas. It will address SLVE data for the binary systems of CH4-CO2, CH4-H2S and H2S-CO2 as well as the ternary system of CH4-H2S-CO2. It will not only address the available laboratory data, but it will also discuss, compare and evaluate the different models used to correlate/predict these data. © 2022 Society of Chemical Industry and John Wiley & Sons, Ltd.

Other Information

Published in: Greenhouse Gases: Science and Technology
License: http://creativecommons.org/licenses/by/4.0/
See article on publisher's website: http://dx.doi.org/10.1002/ghg.2161

History

Language

  • English

Publisher

Wiley

Publication Year

  • 2022

Institution affiliated with

  • Qatar University

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