A simple model for temperature-independent kij of the PR-vdW model for mixtures containing HCs, HFCs, PFCs, HFOs, CO2, RE170 and R13I1

Haiyang Zhang; Maoqiong Gong; Huiya Li; Yanxing Zhao; Quan Zhong; Xueqiang Dong; Jun Shen; Jianfeng Wu

doi:10.1016/j.fluid.2016.06.029

A simple model for temperature-independent k_ij of the PR-vdW model for mixtures containing HCs, HFCs, PFCs, HFOs, CO₂, RE170 and R13I1

Haiyang Zhang, Maoqiong Gong, Huiya Li^*, Yanxing Zhao, Quan Zhong, Xueqiang Dong, Jun Shen, Jianfeng Wu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

The purpose of this paper is to establish a simple model for temperature-independent binary interaction parameter k_ij of the PR-vdW model (Peng-Robinson equation of state with van der Waals one-parameter mixing rules). The model was proposed as k_ij = w_jk_i + w_ik_j (i ≠ j). In the present model, every pure component was considered to have a constant contribution k_i to k_ij, constant w_i is the contribution coefficient of component j mixing with component i. k_ij can be determined by summing the contribution coefficient of each pure component times its contribution. By regressing the vapor-liquid equilibrium (VLE) data of binary mixtures, 119 k_ij were obtained and used to optimize the constant contribution k_i and contribution coefficient w_i. k_ij of 351 binary systems were predicted and used to describe the VLE data of binary and ternary mixtures. Better performs could be found in the present model than the available models on VLE description of the mixtures.

Original language	English
Pages (from-to)	374-384
Number of pages	11
Journal	Fluid Phase Equilibria
Volume	425
DOIs	https://doi.org/10.1016/j.fluid.2016.06.029
Publication status	Published - 15 Oct 2016
Externally published	Yes

Keywords

Binary interaction parameter
Binary mixture
Equation of state
Mixing rules
Ternary mixture
Vapor-liquid equilibrium

Access to Document

10.1016/j.fluid.2016.06.029

Cite this

@article{14ca6925825e47a680af1436dde50fc8,

title = "A simple model for temperature-independent kij of the PR-vdW model for mixtures containing HCs, HFCs, PFCs, HFOs, CO2, RE170 and R13I1",

abstract = "The purpose of this paper is to establish a simple model for temperature-independent binary interaction parameter kij of the PR-vdW model (Peng-Robinson equation of state with van der Waals one-parameter mixing rules). The model was proposed as kij = wjki + wikj (i ≠ j). In the present model, every pure component was considered to have a constant contribution ki to kij, constant wi is the contribution coefficient of component j mixing with component i. kij can be determined by summing the contribution coefficient of each pure component times its contribution. By regressing the vapor-liquid equilibrium (VLE) data of binary mixtures, 119 kij were obtained and used to optimize the constant contribution ki and contribution coefficient wi. kij of 351 binary systems were predicted and used to describe the VLE data of binary and ternary mixtures. Better performs could be found in the present model than the available models on VLE description of the mixtures.",

keywords = "Binary interaction parameter, Binary mixture, Equation of state, Mixing rules, Ternary mixture, Vapor-liquid equilibrium",

author = "Haiyang Zhang and Maoqiong Gong and Huiya Li and Yanxing Zhao and Quan Zhong and Xueqiang Dong and Jun Shen and Jianfeng Wu",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2016",

month = oct,

day = "15",

doi = "10.1016/j.fluid.2016.06.029",

language = "English",

volume = "425",

pages = "374--384",

journal = "Fluid Phase Equilibria",

issn = "0378-3812",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - A simple model for temperature-independent kij of the PR-vdW model for mixtures containing HCs, HFCs, PFCs, HFOs, CO2, RE170 and R13I1

AU - Zhang, Haiyang

AU - Gong, Maoqiong

AU - Li, Huiya

AU - Zhao, Yanxing

AU - Zhong, Quan

AU - Dong, Xueqiang

AU - Shen, Jun

AU - Wu, Jianfeng

PY - 2016/10/15

Y1 - 2016/10/15

N2 - The purpose of this paper is to establish a simple model for temperature-independent binary interaction parameter kij of the PR-vdW model (Peng-Robinson equation of state with van der Waals one-parameter mixing rules). The model was proposed as kij = wjki + wikj (i ≠ j). In the present model, every pure component was considered to have a constant contribution ki to kij, constant wi is the contribution coefficient of component j mixing with component i. kij can be determined by summing the contribution coefficient of each pure component times its contribution. By regressing the vapor-liquid equilibrium (VLE) data of binary mixtures, 119 kij were obtained and used to optimize the constant contribution ki and contribution coefficient wi. kij of 351 binary systems were predicted and used to describe the VLE data of binary and ternary mixtures. Better performs could be found in the present model than the available models on VLE description of the mixtures.

AB - The purpose of this paper is to establish a simple model for temperature-independent binary interaction parameter kij of the PR-vdW model (Peng-Robinson equation of state with van der Waals one-parameter mixing rules). The model was proposed as kij = wjki + wikj (i ≠ j). In the present model, every pure component was considered to have a constant contribution ki to kij, constant wi is the contribution coefficient of component j mixing with component i. kij can be determined by summing the contribution coefficient of each pure component times its contribution. By regressing the vapor-liquid equilibrium (VLE) data of binary mixtures, 119 kij were obtained and used to optimize the constant contribution ki and contribution coefficient wi. kij of 351 binary systems were predicted and used to describe the VLE data of binary and ternary mixtures. Better performs could be found in the present model than the available models on VLE description of the mixtures.

KW - Binary interaction parameter

KW - Binary mixture

KW - Equation of state

KW - Mixing rules

KW - Ternary mixture

KW - Vapor-liquid equilibrium

UR - http://www.scopus.com/inward/record.url?scp=84975887051&partnerID=8YFLogxK

U2 - 10.1016/j.fluid.2016.06.029

DO - 10.1016/j.fluid.2016.06.029

M3 - Article

AN - SCOPUS:84975887051

SN - 0378-3812

VL - 425

SP - 374

EP - 384

JO - Fluid Phase Equilibria

JF - Fluid Phase Equilibria

ER -

A simple model for temperature-independent k_ij of the PR-vdW model for mixtures containing HCs, HFCs, PFCs, HFOs, CO₂, RE170 and R13I1

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this