气候变化领域集成服务门户(CCPortal): Benedict-Webb-Rubin-Starling Equation of State plus Hydrate Thermodynamic Theories: An Enhanced Prediction Method for CO2 Solubility and CO2 Hydrate Phase Equilibrium in Pure Water/NaCl Aqueous Solution System

CCPortal

DOI	10.3390/en17102356
	Benedict-Webb-Rubin-Starling Equation of State plus Hydrate Thermodynamic Theories: An Enhanced Prediction Method for CO2 Solubility and CO2 Hydrate Phase Equilibrium in Pure Water/NaCl Aqueous Solution System
	You, Changyu; Chen, Zhaoyang; Li, Xiaosen; Zhao, Qi; Feng, Yun; Wang, Chuan
发表日期	2024
EISSN	1996-1073
起始页码	17
结束页码	10
卷号	17 期号:10
英文摘要	Accurately predicting the phase behavior and physical properties of carbon dioxide (CO2) in pure water/NaCl mixtures is crucial for the design and implementation of carbon capture, utilization, and storage (CCUS) technology. However, the prediction task is complicated by CO2 liquefaction, CO2 hydrate formation, multicomponent and multiphase coexistence, etc. In this study, an improved method that combines Benedict-Webb-Rubin-Starling equation of state (BWRS EOS) + hydrate thermodynamic theories was proposed to predict CO2 solubility and phase equilibrium conditions for a mixed system across various temperature and pressure conditions. By modifying the interaction coefficients in BWRS EOS and the Van der Waals-Platteeuw model, this new method is applicable to complex systems containing two liquid phases and a CO2 hydrate phase, and its high prediction accuracy was verified through a comparative evaluation with a large number of reported experimental data. Furthermore, based on the calculation results, the characteristics of CO2 solubility and the variation of phase equilibrium conditions of the mixture system were discussed. These findings highlight the influence of hydrates and NaCl on CO2 solubility characteristics and clearly demonstrate the hindrance of NaCl to the formation of CO2 hydrates. This study provides valuable insights and fundamental data for designing and implementing CCUS technology that contribute to addressing global climate change and environmental challenges.
英文关键词	CCUS; BWRS EOS; hydrate thermodynamic theories; CO2 solubility; phase equilibrium
语种	英语
WOS研究方向	Energy & Fuels
WOS类目	Energy & Fuels
WOS记录号	WOS:001232329700001
来源期刊	ENERGIES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/298447
作者单位	Chinese Academy of Sciences; Guangzhou Institute of Energy Conversion, CAS; Chinese Academy of Sciences; Guangzhou Institute of Energy Conversion, CAS; Chinese Academy of Sciences; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chinese Academy of Sciences; University of Science & Technology of China, CAS
推荐引用方式 GB/T 7714	You, Changyu,Chen, Zhaoyang,Li, Xiaosen,et al. Benedict-Webb-Rubin-Starling Equation of State plus Hydrate Thermodynamic Theories: An Enhanced Prediction Method for CO2 Solubility and CO2 Hydrate Phase Equilibrium in Pure Water/NaCl Aqueous Solution System[J],2024,17(10).
APA	You, Changyu,Chen, Zhaoyang,Li, Xiaosen,Zhao, Qi,Feng, Yun,&Wang, Chuan.(2024).Benedict-Webb-Rubin-Starling Equation of State plus Hydrate Thermodynamic Theories: An Enhanced Prediction Method for CO2 Solubility and CO2 Hydrate Phase Equilibrium in Pure Water/NaCl Aqueous Solution System.ENERGIES,17(10).
MLA	You, Changyu,et al."Benedict-Webb-Rubin-Starling Equation of State plus Hydrate Thermodynamic Theories: An Enhanced Prediction Method for CO2 Solubility and CO2 Hydrate Phase Equilibrium in Pure Water/NaCl Aqueous Solution System".ENERGIES 17.10(2024).