CFD simulation of multicomponent mixture within a packed Deethanizer column

The aim of this study is to develop a model of a Deethanizer Column (DC). A fuel mixture of Methane CH 4 , Ethane C 2 H 6 , Propane C 3 H 8 , N-butane n-C 4 H 10 and some hydrocarbons is used to get an insight on the DC operation. A multicomponent gas-liquid flow in DC is investigated using the Comp...

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Vydáno v:Heat and mass transfer Ročník 55; číslo 9; s. 2605 - 2622
Hlavní autoři: Troudi, Hajer, Ghiss, Moncef, Ellejmi, Mohamed, Tourki, Zoubeir
Médium: Journal Article
Jazyk:angličtina
Vydáno: Berlin/Heidelberg Springer Berlin Heidelberg 01.09.2019
Springer Nature B.V
Témata:
CAD
Computational fluid dynamics
Computer aided design
Computer simulation
Droplets
Engineering
Engineering Thermodynamics
Ethane
Fuel mixtures
Heat and Mass Transfer
Industrial Chemistry/Chemical Engineering
Liquid flow
Mathematical models
Methane
Original
Porosity
Pressure drop
Simulation
Surface temperature
Thermodynamics
CFD
Deethanizer column
Porosity
Droplet
Multicomponent
ISSN:0947-7411, 1432-1181
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Shrnutí:The aim of this study is to develop a model of a Deethanizer Column (DC). A fuel mixture of Methane CH 4 , Ethane C 2 H 6 , Propane C 3 H 8 , N-butane n-C 4 H 10 and some hydrocarbons is used to get an insight on the DC operation. A multicomponent gas-liquid flow in DC is investigated using the Computational Fluid Dynamics (CFD) method. The droplet size change, the droplet surface temperature and the pressure drop are investigated with a Eulerian-Lagrangian model using ANSYS-Fluent R15. The computation results are compared with the experimental data of a binary and multicomponent mixture in a stationary droplet. A good agreement between them is established. Additionally, the predicted pressure drop obtained at varied porosity is compared with the data got from the Ergun formulation. The results show that the presence of CH 4 and C 2 H 6 has a big impact on the droplet surface temperature. This temperature initially reaches the lower value because of the fastest evaporation of light components (CH 4 and C 2 H 6 ) rather than the heavy ones (C 5+ ). The current work provides a better understanding of the behavior of light components in DC.
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ISSN:0947-7411
1432-1181
DOI:10.1007/s00231-019-02586-1