Article
Engineering, Chemical
Zhonghao Li, Yuanyuan Yang, Huanong Cheng, Yun Teng, Chao Li, Kangkang Li, Zhou Feng, Hongwei Jin, Xinshun Tan, Shiqing Zheng
Summary: The density and viscosity of rFeCl3/[A336]Cl ionic liquid with different molar ratios were measured at different temperatures and atmospheric pressure. The solubility of H2S in rFeCl3/[A336]Cl was also measured at different temperatures and pressures. A reaction equilibrium thermodynamic model was used to fit the solubility data, and the relationships of Henry's constant and chemical reaction equilibrium constant with temperature and molar ratio were analyzed.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Chao Li, Yun Teng, Huanong Cheng, Hongwei Jin, Kangkang Li, Zhou Feng, Zhonghao Li, Xinshun Tan, Shiqing Zheng
Summary: This study measured the density and viscosity of N-butylmorpholine bromide iron-based ionic liquids with two iron-morpholine ratios at different temperatures and pressures. The data showed that both density and viscosity decrease with increasing temperature, and the relationship between density and ratio is opposite to that of viscosity. The solubility of H2S in the ionic liquids was also measured and found to increase with decreasing temperature, increasing pressure, and decreasing ratio. The chemical reaction equilibrium constant and Henry's constant were obtained and found to decrease with increasing ratio and decreasing temperature. The absorption of H2S was dominated by chemical absorption at low pressure and gradually shifted to physical absorption with increasing pressure.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Review
Chemistry, Physical
Yanrong Liu, Zhengxing Dai, Zhibo Zhang, Shaojuan Zeng, Fangfang Li, Xiangping Zhang, Yi Nie, Lei Zhang, Suojiang Zhang, Xiaoyan Ji
Summary: This study comprehensively collected and summarized the solubilities of CO2 in physical- and chemical-based ILs/DESs, as well as the COSMO-RS models predicting these properties. Chemical-based ILs/DESs were found to be more effective for CO2 capture, especially those with functionalized cations and anions, and superbase DESs.
GREEN ENERGY & ENVIRONMENT
(2021)
Article
Environmental Sciences
Xuejing Kang, Zuopeng Lv, Yongsheng Zhao, Zhongbing Chen
Summary: This study developed a quantitative structure-property relationship (QSPR) model for estimating Henry's law constant (HLC) of H2S in ionic liquids (ILs). Using the extreme learning machine (ELM) algorithm for nonlinear modeling, the model exhibited high reliability and predictive power. The proposed model has potential practical value in guiding the application of ILs for gas sweetening.
Article
Chemistry, Physical
Seyed Pezhman Mousavi, Saeid Atashrouz, Reza Nakhaei-Kohani, Fahimeh Hadavimoghaddam, Ali Shawabkeh, Abdolhossein Hemmati-Sarapardeh, Ahmad Mohaddespour
Summary: This study utilized deep learning approaches to predict the solubility of hydrogen sulfide (H2S) in ionic liquids (ILs). The results showed that the convolutional neural network (CNN) model provided accurate, rapid, flexible, and inexpensive estimations for H2S solubility in ILs.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Biochemistry & Molecular Biology
Tatyana S. Sazanova, Alsu I. Akhmetshina, Anton N. Petukhov, Andrey V. Vorotyntsev, Sergey S. Suvorov, Alexandra V. Barysheva, Amal Mechergui, Alexander V. Nyuchev, Olga V. Kazarina, Anna N. Stepakova, Maria E. Atlaskina, Artem A. Atlaskin, Sergey S. Kryuchkov, Ilya V. Vorotyntsev
Summary: This study investigates the solubility of acidic gases in ionic liquids with sterically hindered bulky anions, specifically bis(2-ethylhexyl) sulfosuccinate ([doc]), at low pressures. The effects of different cations (imidazolium, pyridinium, and pyrrolidinium) on the thermophysical properties and sorption capacities are also discussed. The densities and activation energies of the tested ILs show minimal differences. The COSMO-RS model is used to predict the free volumes of ILs and their influence on gas solubilities.
Article
Chemistry, Physical
Javid Safarov, Gulyaz Abdullayeva, Mahir Bashirov, Dirk Tuma, Rasim Bashirov
Summary: The solubility data of carbon dioxide (CO2) in the ionic liquid [EMIM][CH3SO3] were reported at various temperatures and pressures, showing a monotonic decrease in solubility with increasing temperature. The study calculated Henry's law constant and thermodynamic state properties derived from it, providing valuable insights into the solvation behavior of CO2 in the ionic liquid.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Zhijun Zhou, Peilu Zhang, Yuqing Chang, Xiaochun Chen
Summary: With the increasing awareness of environmental protection, the removal of H2S from natural gas has become an important area of research. In this study, three types of multi-amino functionalized ionic liquids (MFILs) were synthesized and tested for their solubility and removal efficiency of H2S. One type of MFIL, [DETAH][Im], showed remarkable solubility and removal efficiency, making it a promising absorbent for sweetening natural gas.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Parisa Jahanbakhsh-Bonab, Gholamreza Pazuki, Jaber Jahanbin Sardroodi, Seyed Mohsen Dehnavi
Summary: The structural and physicochemical properties of chiral deep eutectic solvents (DESs) containing different racemic mixtures of menthol and organic acids were investigated. The results showed that the hydroxyl hydrogen of menthol had a dominant interaction with the carbonyl oxygen of the acids, leading to different self-diffusion coefficients for S-menthol and R-menthol. The density and isothermal compressibility of the DESs were affected by the type of acid used. Overall, this study provides insights into the application of chiral DESs for enantioselective processes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Engineering, Chemical
Nicolas Hayer, Fabian Jirasek, Hans Hasse
Summary: This study introduces a new machine learning approach called matrix completion methods (MCMs) for predicting Henry's law constants H-ij. The predictive performance of MCMs is similar to that of the Predictive Soave-Redlich-Kwong equation-of-state (PSRK-EoS), but with wider applicability. Additionally, a hybrid method combining MCMs and PSRK-EoS in a Bayesian framework achieves unprecedented performance in predicting H-ij.
Article
Engineering, Chemical
Menad Nait Amar, Mohammed Abdelfetah Ghriga, Hocine Ouaer
Summary: Ionic Liquids (ILs) are considered as new green solvents and the study introduced advanced committee machine intelligent systems (CMIS) for predicting the solubility of hydrogen sulfide (H2S) in various ILs, showing great accuracy and prediction performance.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Chemistry, Physical
Yifeng Chen, Zhuhong Yang, Xiaohua Lu, Xiaoyan Ji
Summary: Understanding the mass-transfer kinetics of CO2 in novel hybrid absorbents is crucial for process design and evaluation. The study determined the liquid-side mass-transfer coefficients and second-order reaction rate constants of CO2 in a specific hybrid absorbent, finding promising properties for CO2 separation.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Joachim Eichenlaub, Paulina W. Rakowska, Adam Kloskowski
Summary: As an environmentally friendly alternative, ionic liquids are potential candidates for carbon capture processes. Computational methods are preferred for assessing their potential applications due to the time-consuming and expensive nature of laboratory research. In this study, three quantitative structure-property relationship models were created to predict the Henry's law constant of CO2 in 62 ionic liquids. The models showed satisfactory statistical parameters and provided guidelines for designing ionic liquids with increased CO2 absorption capacity.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Lanyun Wang, Lingshuang Li, Yongliang Xu, Yao Li, Yan Wang, Tingxiang Chu
Summary: This study prepared various hybrid absorbents by mixing several alkali metal salts with [Bmim][BF4] or [Bmim][Ac] to absorb CO2. The hybrid absorbents based on [Bmim][BF4] showed enhanced absorption effect on CO2, while the hybrid absorbent based on [Bmim][Ac] had an inhibitory effect.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Chemical
Wenjie Xiong, Mingzhen Shi, Yan Lu, Xiaomin Zhang, Xingbang Hu, Zhuoheng Tu, Youting Wu
Summary: A novel method utilizing ionic liquids to convert H2S into mercaptan alcohols and enols has been developed in this study, showing high efficiency and industrial application potential.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Analytical
Sujuan Ye, Longfei Ma, Jihua Zhang, Ronghua Li, Huanong Cheng
Summary: A novel drug delivery system (DDS) has been developed in this study, which uses dual microRNAs as master keys to enhance drug release through DNA strand migration and DNAzyme self-assembly. In addition, the system is capable of achieving precise chemo-photothermal therapy by utilizing near-infrared irradiation.
ANALYTICAL CHEMISTRY
(2022)
Article
Thermodynamics
Yun Teng, Ying Wang, Hongbin Hu, Chao Li, Rui Zhang, Huanong Cheng, Shiqing Zheng
Summary: In this study, the density, viscosity, and hydrogen sulfide solubility of the triethylamine hydrochloride ferric chloride ionic liquid (rFeCl(3)/Et3NHCl) were measured. The solubility was affected by factors such as temperature, pressure, and iron-amine ratio. Chemical and physical absorption processes were involved in the absorption of hydrogen sulfide in the ionic liquid. The solubility data were correlated using a reaction equilibrium thermodynamic model, and the equilibrium constant and Henry's constant were obtained.
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2023)
