Počet záznamů: 1
Modification of a model for mixed hydrates to represent double cage occupancy
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SYSNO ASEP 0502648 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Modification of a model for mixed hydrates to represent double cage occupancy Tvůrce(i) Hielscher, S. (DE)
Semrau, B. (DE)
Jäger, A. (DE)
Vinš, Václav (UT-L) RID, ORCID
Breitkopf, C. (DE)
Hrubý, Jan (UT-L) RID, ORCID
Span, R. (DE)Celkový počet autorů 7 Zdroj.dok. Fluid Phase Equilibria. - : Elsevier - ISSN 0378-3812
Roč. 490, June (2019), s. 48-60Poč.str. 12 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova gas hydrate ; mixed hydrate ; air components ; double occupancy Vědní obor RIV BJ - Termodynamika Obor OECD Thermodynamics CEP GA17-08218S GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora UT-L - RVO:61388998 UT WOS 000466455400006 EID SCOPUS 85062687283 DOI 10.1016/j.fluid.2019.02.019 Anotace Gas hydrates are subject of current research work and are also important for several industrial applications. When transporting natural gases or oil through pipelines, the formation of gas hydrates and thus a blockage of the pipeline must be avoided. There is also a great interest to understand the thermophysical properties and the phase change behavior of hydrates during liquefaction processes of natural gases, for CO 2 capture and sequestration (CCS) processes, and for CH 4 and C 2 H 6 hydrates, which can be found on the seabed or in permafrost soils as a potential energy source. In this work, the model for mixed gas hydrates (mixtures of water with more than one hydrate former), which has been introduced in a previous work [Fluid Phase Equilib. 459 (2018) 170–185] and is intended for the use in CCS relevant applications, is modified to take double cage occupancy into account. The three-phase equilibrium data can be reproduced up to high pressures at which N 2 , O 2 , and Ar are known to double occupy the hydrate cavities. The influence of double occupied hydrate cages and the improved reproduction of experimental phase equilibrium data at pressures at which double cage occupancy occurs are shown for pure hydrate and for mixed hydrate phase equilibrium and composition data. In case of mixed hydrates, comparisons are shown for synthetic air (N 2 +O 2 ). Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2020 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S0378381219300743
Počet záznamů: 1