Article
Engineering, Chemical
Yanshao Yang, Zhenggong Wang, Zejun Song, Dixin Liu, Jiaqi Zhang, Lele Guo, Wangxi Fang, Jian Jin
Summary: This study investigates the application of an amidoxime modified polymer of intrinsic microporosity (AOPIM-1) as a membrane material for reverse osmosis desalination. The AOPIM-1 membrane shows a high water permeability and selective ion permeation due to its highly connected and fast water transport micropores. The performance of AOPIM-1 membrane surpasses conventional polyamide-based desalination membranes in terms of water permeability and permselectivity.
Article
Engineering, Chemical
Jian Zhao, Qinglin Huang, Shangpeng Gao, Hongwei Piao, Quan Quan, Changfa Xiao
Summary: The research team developed a novel solar thermal conversion membrane using materials such as polyacrylonitrile nanofibers and polyvinylidene fluoride, which can achieve efficient water distillation and prevent salt accumulation, showing great potential for desalination and water purification.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Environmental
Xue Dai, Qi Wei, Yali Wang, Qunyan Li, Suping Cui, Zuoren Nie
Summary: The production of freshwater through desalination is of great significance. This study proposes a novel strategy to enhance the long-term stability of FAS-modified ceramic membranes for desalination. By constructing a porous SiO2@PDMS protective layer on the top of the membranes, a robust hydrophobic property is obtained. The results demonstrate that these membranes exhibit high stability and can maintain a stable water flux and salt rejection during long-term desalination.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Zishu Cao, Landysh Iskhakova, Xinhui Sun, Zhong Tang, Junhang Dong
Summary: A submicrometer-thick molecular sieve zeolite nanosheet laminated (ZNL) membrane has been synthesized on a macroporous polyvinylidene fluoride (PVDF) substrate, demonstrating extraordinary water flux and salt rejection in pervaporation desalination of high-salinity brines containing multiple ions. The densely layered nanosheets with large aspect ratios effectively prevent salt migration, resulting in stable performance in high-TDS brine desalination.
ACS APPLIED NANO MATERIALS
(2021)
Article
Engineering, Chemical
Mohd Muzammil Zubair, Haleema Saleem, Syed Javaid Zaidi
Summary: This article provides a comprehensive assessment of the modeling of reverse osmosis (RO) processes, including basic theories and mathematical models based on different membrane configurations. The study shows that these models can optimize the design and operation of RO systems, improving efficiency, reducing energy consumption, and enhancing water quality.
Review
Engineering, Chemical
Marcello Pagliero, Mohamed Khayet, Carmen Garcia-Payo, Loreto Garcia-Fernandez
Summary: Membrane distillation is an important separation technology for desalination, especially with the advantages of hollow fibre membranes. Through modifying spinning conditions, the morphology and structure of hollow fibre membranes can be improved to enhance the desalination performance.
Article
Materials Science, Multidisciplinary
M. Nabil, F. Horia, S. S. Fouad, Sohair Negm
Summary: The impact of gold nanoparticles (Au NPs) on the thermooptical parameters of Fe3O4 (NPs) for seawater desalination cycles was investigated. The addition of AuNPs decreased the optical direct band gap and electronegativity, while increasing the refractive index. The study demonstrated the potential of improving solar thermal conversion efficiency through the combination of morphological and elemental information.
Article
Engineering, Chemical
P. S. Goh, H. S. Kang, A. F. Ismail, N. Hilal
Summary: Water scarcity is a pressing global issue, and desalination is seen as a sustainable alternative for providing freshwater. Hybridization of desalination processes is recognized as a promising approach to address the shortcomings of traditional desalination methods, and thermal-based hybrid desalination systems are expected to be the future trend in commercial-scale desalination operations.
Article
Engineering, Chemical
Baolei Xie, Guorong Xu, Yuhui Jia, Lukai Gu, Qun Wang, Nazish Mushtaq, Bowen Cheng, Yunxia Hu
Summary: The study demonstrates that an optimal match of CNTs loading with substrate properties can enhance the specific surface area of the membrane, resulting in improved flux and salt rejection. Under optimized conditions, CNT-enhanced PTFE membrane shows >99.9% salt rejection and 33.2 LMH water flux in MD, which is three times higher than that of pristine PTFE membrane in direct contact membrane distillation with a temperature difference of 40 degrees C.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Review
Green & Sustainable Science & Technology
Z. Rahimi-Ahar, M. S. Hatamipour
Summary: This study explores the improvements in thermal desalination systems, with a focus on exergy. The research suggests that efforts should be made to minimize exergy destruction in order to enhance the overall efficiency of standalone systems. The integration of different desalination technologies and optimization of various factors can increase the exergy efficiency of a desalination plant.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2023)
Article
Thermodynamics
Marzieh Abedi, Younes Ghalavand, Arezoo Ghalavand
Summary: The study evaluates a humidification-dehumidification desalination system where dehumidification is achieved through compression. Two double-stage humidification compression configurations are proposed and mathematical models are developed for all system parts to assess the impact of operating conditions. Experimental data validate the modeling results, showing higher water productivity and energy efficiency for the parallel configuration compared to the series configuration under all operating conditions.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Engineering, Chemical
Fadhilah Alduraiei, Sushil Kumar, Jiangtao Liu, Suzana P. Nunes, Gyorgy Szekely
Summary: Covalent organic polymers (COPs) with permanent pores are prepared via non-uniform covalent assembly of organic building blocks, making them suitable for diverse applications. In this study, a rapid synthesis route for COP-based composite membranes was demonstrated using interfacial polymerization. The membranes were prepared directly on a polyacrylonitrile substrate and exhibited good hydrophobicity. The obtained solvent-resistant composite membranes showed high toluene permeance and rejection levels for congo red.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Ying Peng, Yongshuai Xie, Zhezhe Deng, Dehua Ma, Bennue Liu, Xinqiang Wang, Guanghui Zhang, Luyi Zhu
Summary: We report a two-phase hydrophobic silica-zirconia composite ceramic nanofiber membrane with exceptional mechanical robustness and high-temperature hydrophobic resistance. The membrane has strong strength, high hydrophobic temperature resistance, high porosity, low density, low thermal conductivity, and excellent thermal radiation reflectivity. In simulated high-temperature and high-humidity conditions, the membrane can reduce the heat source and maintain complete hydrophobicity.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Polymer Science
Abhispa Sahu, Raghav Dosi, Carly Kwiatkowski, Stephen Schmal, Jordan C. C. Poler
Summary: Nanomaterial incorporation in polymer nanocomposite membranes greatly enhances their performance for water and wastewater treatment. Different types of nanomaterials, such as nanoparticles, carbon nanotubes, graphene, and zeolites, combined with polymers, result in enhanced features of the membranes. However, the issues regarding modification processes and environmental impact of these membranes need further investigation. Computational methods are also useful in understanding the structural and functional properties of these membranes. This review highlights the fabrication methods, advantages, challenges, environmental impact, and future scope of these advanced polymeric nanocomposite membrane based systems for water and wastewater treatment applications.
Article
Energy & Fuels
Ewelina Radomska, Lukasz Mika, Karol Sztekler, Wojciech Kalawa
Summary: This study presents the validation results of thermal process modeling in a solar still, with experiments conducted in a laboratory under different solar irradiance conditions. The results show that decreasing water mass from 20 kg to 10 kg can improve the still's productivity, with a maximum increase of 21.6% observed under low solar irradiance. The proposed mathematical model accurately predicts the performance of the solar still, with a maximum deviation between actual and theoretical productivity of 8.3%.
Article
Engineering, Chemical
Qing Han, Mengqing Shi, Linkai Han, Di Liu, Mingwei Tong, Yuxin Xie, Zhonghua Xiang
Summary: Developing highly efficient bifunctional oxygen electrocatalysts is crucial for zinc-air flow batteries. Metal-organic frameworks (MOFs) and covalent organic polymers (COPs) have emerged as promising alternatives due to their designable and controllable atomic-level structures. However, their catalytic performances are limited by conductivity and catalytic activity. In this study, nanosheet FeNi-MOF and iron phthalocyanine rich COP hybrid materials are assembled through the pi-pi stacking effect to create highly efficient bifunctional electrocatalysts. The resulting catalyst exhibits superior catalytic performance and stability, making it a promising candidate for zinc-air flow batteries.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Daria Grigorash, Dmytro Mihrin, Rene Wugt Larsen, Erling H. Stenby, Wei Yan
Summary: The article introduces a new approach to describe the cross-association between molecules, allowing for the simulation of weakly bound molecular complexes with different conformations in mixtures. By incorporating this approach into the equation of state, accurate predictions of vapor-liquid equilibrium and liquid-liquid equilibrium can be made. The new method is validated through experiments on alcohol and acid mixtures, with the results compared to experimental data, demonstrating its accuracy and reliability.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Mohammed Al-Sharabi, Daniel Markl, Vincenzino Vivacqua, Prince Bawuah, Natalie Maclean, Andrew P. E. York, Axel Zeitler
Summary: This study used terahertz pulsed imaging to investigate the transport process of different solvents into ceramic catalytic materials. The results showed that the heating rate of the samples influenced the water transport rate, while the viscosity of 1-octanol slowed down its transport.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Chukwunonso Anyaoku, Sati Bhattacharya, Rajarathinam Parthasarathy
Summary: This study aimed to enhance understanding of settling dynamics in viscoelastic fluids by developing a semi-empirical correlation and a dimensionless ratio, which accurately described the characteristics of settling suspensions.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Antti I. Koponen, Janika Viitala, Atsushi Tanaka, Baranivignesh Prakash, Olli-Ville Laukkanen, Ari Jasberg
Summary: This study focuses on the development of foam application chemicals for the paper and board industry. The research explores the rheology of the polyvinyl alcohol foam used in the process. Measurements were conducted to determine the foam viscosity and slip flow. The results suggest that slip flow contributes significantly to the total flow rate, and the obtained viscosity and slip models provide a solid foundation for industrial processes.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Dalei Sun, Jinghui Cai, Yating Yang, Zhiwu Liang
Summary: In this study, Fe-doped alpha-Bi2O3 catalysts with different Fe/Bi molar ratios were synthesized and utilized in the carbonylation of isobutyl amine with CO2. The results showed that Fe doping significantly enhanced the catalytic abilities of alpha-Bi2O3.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Yuan Tian, Xinxin Wang, Yanrong Liu, Wenping Hu
Summary: This paper predicts the solubility of nitrogen gas in ionic liquids (ILs) using two quantitative structure-property relationship (QSPR) models. By combining machine learning methods and ionic fragments contribution method, the accuracy and reliability of the prediction models are improved.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Liwang Wang, Wei Liu, Pan Yang, Yulong Chang, Xiaoxu Duan, Lingyu Xiao, Yaoming Hu, Jiwei Wu, Liang Ma, Hualin Wang
Summary: This study investigates the effective phase interfacial area (ae) of hydro-jet cyclones at different injection angles. The results show that a 45 degrees upward incidence angle yields the most favorable flow field characteristics for efficient mass transfer. The significant enhancement in ae of the hydro-jet cyclones offers the advantage of reducing equipment volume and cost savings.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Chuanjun Wu, Jiangzhi Chen, Jiyue Sun, I-Ming Chou, Shenghua Mei, Juezhi Lin, Lei Jiang
Summary: In this study, the solubility of H2S hydrate in water was measured using Raman spectroscopy. The results showed that the solubility increases with temperature under certain equilibrium conditions, and the solubility also depends on pressure and temperature under different equilibrium conditions. A thermodynamic model based on the van der Waals-Platteeuw theory was developed to predict the solubility, demonstrating its accuracy.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Lorenzo Brivio, Serena Meini, Mattia Sponchioni, Davide Moscatelli
Summary: This study investigates the influence of three main parameters and proposes a kinetic model to predict the optimal operating conditions for high yield of dimethyl terephthalate (DMT) in the chemical recycling process of polyethylene terephthalate (PET).
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Hongju Lin, Fanhui Liao, Yanchang Chu, Mingyu Xie, Lun Pan, Yuanyuan Wang, Lijian Leng, Donghai Xu, Le Yang, Gangfeng Ouyang
Summary: A honeycomb NiCo/C-Na catalyst with a micro-meso-macroporous structure has been fabricated and shown to have significantly higher catalytic activity for the decarboxylation of fatty acids. It also proves to be efficient in upgrading sludge HTL bio-crude, resulting in a biofuel with decreased viscosity and increased density.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Xiaoxian Li, Rui Li, Min Lin, Mingde Yang, Yulong Wu
Summary: A series of coated non-noble metal porous carbon catalysts were synthesized and applied to the aqueous-phase deoxygenation of algal bio-oil. One of the catalysts showed excellent deoxygenation selectivity and catalytic activity at 250 degrees C. The catalyst exhibited good hydrothermal stability and the reaction mechanism was proposed based on product analysis and active site analysis.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
M. V. Chudakova, M. V. Popov, P. A. Korovchenko, E. O. Pentsak, A. R. Latypova, P. B. Kurmashov, A. A. Pimenov, E. A. Tsilimbaeva, I. S. Levin, A. G. Bannov, A. V. Kleymenov
Summary: A series of catalysts with different potassium contents were prepared using solution combustion synthesis and characterized using various techniques. The results showed that the potassium content affected the phase composition and texture of the catalysts. The addition of a small amount of potassium resulted in a change in particle size distribution, leading to higher hydrogen yield. The Ni-1%K2O/Al2O3 catalyst exhibited the highest hydrogen yield at temperatures of 675 and 750 degrees Celsius.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Aliakbar Roosta, Nima Rezaei
Summary: In this study, we modified the electrolyte cubic plus association equation of state (e-CPA EoS) and integrated it with two electrical conductivity models to estimate the electrical conductivity of 11 monovalent electrolyte solutions in water. The modified e-CPA model demonstrated better performance and the hybridization with electrical conductivity models resulted in two predictive models for estimating the electrical conduction of dilute and concentrated electrolyte solutions. These predictive models showed relative average percentage deviations (AARD) of 11.15% and 13.87% over wide ranges of temperature and electrolyte concentration.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Haoren Niu, Jianzheng Wang, Qingzhu Jia, Qiang Wang, Jin Zhao, Fangyou Yan
Summary: A study developed two quantitative structure-property relationship models for the complexation performance of alpha- and beta-cyclodextrins and validated their stability and predictive ability through internal and external validation. The models showed robustness and satisfactory performance, as demonstrated by the experimental results and model validations. These models can effectively predict the binding constants between cyclodextrins and various types of molecules, providing valuable tools for cyclodextrin design.
CHEMICAL ENGINEERING SCIENCE
(2024)