Valderio de Oliveira Cavalcanti Filho , Rod Burgass , Antonin Chapoy
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引用次数: 0
Abstract
Monitoring humidity downstream to conditioning facilities and during transportation is essential for avoiding hydrate deposition. However, water inline monitoring under high pressure is still challenging in the CCS industry. This study presents an experimental and modelling investigation for enhancing field monitoring and model predictions. Measurements are performed using the Differential Scanning Hygrometry (DSH). This novel analytical approach has been successfully tested for measuring dew/frost temperatures for carbon dioxide, CH4+CO2, and CO2-rich mixtures in equilibrium with hydrates, free water and ice. Moreover, the DSH method has been applied for direct HP equilibrium temperature measurements. Also, this work compares three modified versions of the classical SRK EoS with the Multi-Fluid Helmholtz Energy Approximation (MFHEA). This evaluation includes Huron-Vidal and the EMS mixing rules and the cubic-plus association (CPA) approach. A thorough fitting process was carried out and, overall, comparisons with the experimental data showed that SRK + EMS yielded results as satisfactory as sCPA.
期刊介绍：
The Journal of Chemical Thermodynamics exists primarily for dissemination of significant new knowledge in experimental equilibrium thermodynamics and transport properties of chemical systems. The defining attributes of The Journal are the quality and relevance of the papers published.
The Journal publishes work relating to gases, liquids, solids, polymers, mixtures, solutions and interfaces. Studies on systems with variability, such as biological or bio-based materials, gas hydrates, among others, will also be considered provided these are well characterized and reproducible where possible. Experimental methods should be described in sufficient detail to allow critical assessment of the accuracy claimed.
Authors are encouraged to provide physical or chemical interpretations of the results. Articles can contain modelling sections providing representations of data or molecular insights into the properties or transformations studied. Theoretical papers on chemical thermodynamics using molecular theory or modelling are also considered.
The Journal welcomes review articles in the field of chemical thermodynamics but prospective authors should first consult one of the Editors concerning the suitability of the proposed review.
Contributions of a routine nature or reporting on uncharacterised materials are not accepted.
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