Modification of a model for mixed hydrates to represent double cage occupancy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F19%3A00502648" target="_blank" >RIV/61388998:_____/19:00502648 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0378381219300743" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0378381219300743</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fluid.2019.02.019" target="_blank" >10.1016/j.fluid.2019.02.019</a>

Result language

angličtina

Original language name

Modification of a model for mixed hydrates to represent double cage occupancy

Original language description

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 ).

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20303 - Thermodynamics

Project

<a href="/en/project/GA17-08218S" target="_blank" >GA17-08218S: Thermal Energy Storage Materials: Thermophysical Characteristics for the Design of Thermal Batteries</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Fluid Phase Equilibria

ISSN

0378-3812

e-ISSN

—

Volume of the periodical

490

Issue of the periodical within the volume

June

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

12

Pages from-to

48-60

UT code for WoS article

000466455400006

EID of the result in the Scopus database

2-s2.0-85062687283