Review
Engineering, Environmental
Camila D. Bastiani, David Kennedy, Anthony Reynolds
Summary: Anaerobic digestion processes can generate renewable energy in the form of biogas while treating organic wastewater. The hydrodynamic behavior in high-rate reactors such as UASB, EGSB, and IC reactors depends on the interactions between wastewater, biogas, and biomass granules. Computational fluid dynamics (CFD) has been used to study and model the hydrodynamic behavior in these reactors. This review critically analyzes the use of CFD in modeling anaerobic granular sludge reactors, discussing modeling aspects, model validations, and future perspectives.
Review
Engineering, Environmental
Himanshu Goyal, Tai-Ying Chen, Weiqi Chen, Dionisios G. Vlachos
Summary: Microwaves offer an alternative heating method and process intensification in multiphase reactors. However, the mechanism of how microwaves affect chemical processes is still debated, highlighting the need for further research in experimental and modeling studies to bridge this gap. Promising results have been shown by recent modeling studies, indicating the potential for comprehensive understanding and optimization of microwave multiphase reactors through a combination of experimental and modeling tools.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Azis Boing Sitanggang, Anja Drews, Matthias Kraume
Summary: Enzymatic membrane reactors (EMRs) are increasingly used in biotechnology, (bio)chemistry, agro-food, and energy sectors due to their feasibility of running continuous enzymatic reaction and product separation in a single operation. This review discusses available designs of EMRs based on membrane functions, hydrodynamic and filtration characteristics, and outlines various applications of EMRs in agro-food, pharmaceutical, environmental, and energy sectors. Fouling, a well-known problem in membrane technology, and its circumventions in size-exclusion EMR are critically discussed.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Energy & Fuels
Mathias Jacobs, Glen Meir, Amer Hakki, Leen C. J. Thomassen, Simon Kuhn, M. Enis Leblebici
Summary: Micro-photoreactors have a high surface-area-to-volume ratio and enable homogeneous illumination and high apparent reaction rate. However, their small size limits their use in industry. This study presents a scalable photoreactor design based on translucent monoliths, which can handle large throughputs while maintaining the benefits of microreactors.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Review
Engineering, Environmental
Dawei Wang, Miguel Angel Mueses, Jose Angel Colina Marquez, Fiderman Machuca-Martinez, Ivana Grcic, Rodrigo Peralta Muniz Moreira, Gianluca Li Puma
Summary: The debate over the commercial maturity of photocatalysis for water treatment has intensified recently, with a focus on research into reactor design and modeling to complement innovative materials development. Despite advances in reactor technology, challenges in dissemination of design principles remain a barrier to widespread real-world application.
Article
Biochemical Research Methods
Franco Otaola, Stephane Mottelet, Erwann Guenin, Denis Luart, Mikel Leturia
Summary: The use of Additive Manufacturing for chemical reactors shows promising potential. In this study, two different reactors were compared, with the Periodic Open Cell Structure reactor demonstrating better performance compared to the traditional Honeycomb monolith reactor.
Review
Engineering, Chemical
Zifei Yan, Jiaxin Tian, Kai Wang, Krishna D. P. Nigam, Guangsheng Luo
Summary: Microreaction processes are increasingly utilized in the synthesis and utilization of epoxide compounds due to their excellent characteristics such as high safety, rapid reactant mixing, and high mass transfer rates. The catalyst loading strategies and transfer characteristics of heterogeneous catalytic microreactors are discussed to illustrate the essence of process intensification in microflow reactors. Strengths and further challenges are proposed to provide a perspective for the development of microreaction technology in the epoxide industry.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Chemistry, Physical
Jiang-Yan Xue, Fei-Long Li, Bingbing Chen, Hongbo Geng, Wei Zhang, Wan-Ying Xu, Hongwei Gu, Pierre Braunstein, Jian-Ping Lang
Summary: This study presents an interface engineering strategy to fabricate heterostructures of MoSe2/NiSe with different phases. The mixed MoSe2/NiSe heterostructures show significantly enhanced hydrogen evolution reaction (HER) activity due to the strong electronic synergistic interaction between the different interfaces. Density functional theory calculations rationalize the higher activity of the three-phase combination.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Mahyar Mohaghegh Montazeri, Fariborz Taghipour
Summary: This study proposes an optical module design for collimation of UV-LED radiation using multi-parabolic aluminum reflectors. The optimized design allows the module to form collimated beams, increasing the irradiance and delivered UV dose. Experimental results show good agreement with simulation results.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Engineering, Chemical
Benjamin Cohen, Dan Lehnherr, Melda Sezen-Edmonds, Jacob H. Forstater, Michael O. Frederick, Lin Deng, Antonio C. Ferretti, Kaid Harper, Moiz Diwan
Summary: The challenges and opportunities in API manufacturing processes are increasing due to the growing molecular complexity, shorter process development times, and the need for greener, more efficient, and less costly processes. However, emerging chemical technologies such as electrochemistry, photochemistry, and biocatalysis offer potential solutions. The Enabling Technology Consortium (ETC) is working to bridge the gap between laboratory-scale development and industrial-scale manufacturing by focusing on these technologies and addressing issues related to scalability, safety, and quality.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Engineering, Chemical
Bruno Leite, Esly Ferreira da Costa Jr
Summary: This study optimizes industrial styrene reactors using the multi-objective algorithm GDE3 to maximize conversion and selectivity. The use of an intrinsic heterogeneous reaction model in modeling produces realistic results and explores the impact of different operational conditions on reactor performance.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Energy & Fuels
Joris Claes, Arne Vancleef, Marleen Segers, Bert Brabants, Mumin Enis Leblebici, Simon Kuhn, Luc Moens, Leen C. J. Thomassen
Summary: The aminolysis reaction with heterogeneous feed and product was investigated. The optimal non-hazardous solvent was selected through batch reactor solvent screening. The highest yield obtained was 86.4%. The optimal reaction conditions were successfully applied in a pulsatile flow reactor, resulting in a product yield of 97%.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2023)
Article
Chemistry, Physical
Massimo Milani, Luca Montorsi, Gabriele Storchi, Matteo Venturelli
Summary: The paper proposes a combined approach between numerical modeling and experimental measurements for the analysis of a cogeneration system based on the reaction of liquid aluminum and water steam. The analysis focuses on the thermal behavior of the liquid aluminum jet during the injection phase, with experimental results used to validate a 2D multi-phase CFD approach. The study aims to deepen the understanding of the thermo-fluid dynamics behavior of the system.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Physics, Fluids & Plasmas
Shengyuan Zhang, Jun Tang, Huiying Wu
Summary: This paper proposes a lattice Boltzmann model based on the phase-field method for simulating large density ratio two-phase flows. The model avoids the calculation issues in previous models and has been validated through a series of benchmark tests.
Article
Engineering, Environmental
Fedor A. Kucherov, Leonid Romashov, Valentine P. Ananikov
Summary: An innovative method for creating lab-on-a-chip microflow reactors was developed based on in-depth studies of chemical processes at plastic-metal interfaces. The method involves 3D printing the reactor core with ABS plastic, followed by electroless copper and galvanic nickel plating for a durable and versatile design. Despite the simple procedure and low-cost materials used, the reactors exhibited excellent chemical resistance, modular design capabilities, and high performance in a variety of chemical processes targeting biologically active molecules.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Mohammad Mainul Hoque, Subhasish Mitra, Geoffrey M. Evans, Vishnu Pareek, Jyeshtharaj B. Joshi
CHEMICAL ENGINEERING SCIENCE
(2018)
Article
Thermodynamics
Tuyen T. B. Nguyen, Subhasish Mitra, Mayur J. Sathe, Vishnu Pareek, J. B. Joshi, G. M. Evans
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2018)
Article
Engineering, Chemical
Vaibhav Agrawal, Yogesh H. Shinde, Milinkumar T. Shah, Ranjeet P. Utikar, Vishnu K. Pareek, Jyeshtharaj B. Joshi
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2018)
Article
Engineering, Chemical
Baranivignesh Prakash, Tejas Bhatelia, Divyamaan Wadnerkar, Milinkumar T. Shah, Vishnu K. Pareek, Ranjeet P. Utikar
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2019)
Article
Engineering, Chemical
M. Gumulya, J. B. Joshi, R. P. Utikar, G. M. Evans, V Pareek
CHEMICAL ENGINEERING SCIENCE
(2019)
Review
Agricultural Engineering
Samreen Hameed, Abhishek Sharma, Vishnu Pareek, Hongwei Wu, Yun Yu
BIOMASS & BIOENERGY
(2019)
Review
Energy & Fuels
Anita Sharma, Akshay Jakhete, Abhishek Sharma, Jyeshtharaj B. Joshi, Vishnu Pareek
GREENHOUSE GASES-SCIENCE AND TECHNOLOGY
(2019)
Article
Energy & Fuels
Maciej Mazur, Tejas Bhatelia, Benny Kuan, Jim Patel, Paul A. Webley, Milan Brandt, Vishnu Pareek, Ranjeet Utikar
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2019)
Article
Engineering, Chemical
Samreen Hameed, Abhishek Sharma, Vishnu Pareek
Article
Energy & Fuels
Ben Redondo, Milinkumar T. Shah, Vishnu K. Pareek, Ranjeet P. Utikar, Paul A. Webley, Jim Patel, Woo Jin Lee, Tejas Bhatelia
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2019)
Article
Chemistry, Applied
Min Ao, Gia Hung Pham, Valerie Sage, Vishnu Pareek, Shaomin Liu
FUEL PROCESSING TECHNOLOGY
(2019)
Article
Energy & Fuels
Milinkumar T. Shah, Harisinh B. Parmar, Lee D. Rhyne, Chris Kalli, Ranjeet P. Utikar, Vishnu K. Pareek
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2019)
Article
Engineering, Chemical
Milinkumar T. Shah, Ranjeet P. Utikar, Vishnu K. Pareek
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2019)
Article
Engineering, Chemical
Xiu Liu, Chunyan Fan, D. D. Do, Vishnu Pareek, Peiyu Yang
CHEMICAL ENGINEERING SCIENCE
(2020)
Article
Engineering, Chemical
Biao Sun, Kaihua Guo, Vishnu K. Pareek
JOURNAL OF COMBUSTION
(2019)
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)