Article
Engineering, Chemical
Patrick Morsch, Linda Moehlendick, Markus Suesser, Hermann Nirschl
Summary: This study focuses on the fundamental investigation of the process design and optimization of activated carbon adsorption technology with a precoat layer. By combining powdered activated carbon with candle filters, the traditional separation and filtration process has been effectively enhanced.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Toru Aramaki, Makoto M. Watanabe, Mitsutoshi Nakajima, Sosaku Ichikawa
Summary: Microalgae are a promising bioresource capable of producing materials for fuels, nutraceuticals, cosmetics, and pharmaceuticals. Harvesting microalgae is expensive due to their small size and dilute concentrations during cultivation. Cake filtration with a filter cloth is a cost-effective method for microalgae harvest, resulting in high solid concentration in the cake and relatively high permeate flux.
JOURNAL OF APPLIED PHYCOLOGY
(2021)
Article
Engineering, Chemical
Fuqiang Zheng, Yufeng Guo, Jianjun Fan, Hongguo Yao, Feng Chen, Shuai Wang, Lingzhi Yang, Tao Jiang, Guanzhou Qiu
Summary: This study used R31 filter aid containing specific organic compounds to improve the filtration of fine hematite concentrate, leading to an increase in the dehydration rate of filter cake.
Article
Engineering, Chemical
Libo Liu, Qiming Zhuo, Hongxiang Xu, Donghui Wang
Summary: In this paper, an innovative measurement method for the pore structure of filter cake after filtration dehydration of coal slime water was established. The method includes the preparation of coal slime filter cake, the solidification of the filter cake, and the preparation and measurement of test filter cake. By using epoxy resin and curing agent, the strength of the filter cake is ensured, and the accurate separation of coal particles and pores is achieved by using red colorant. The results and rules obtained from this method are accurate and can be conveniently used in studying the microstructure of filter cake, pore channel regulation, filtration dehydration mechanisms, etc.
Article
Engineering, Chemical
Martin Hennemann, Martina Gastl, Thomas Becker
Summary: This study investigated the impact of particle size distribution on filter cake resistance, finding that the uniformity of particle size distribution plays a crucial role in resistance, and that the mean particle size is not the sole determining factor.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Computer Science, Interdisciplinary Applications
Philip Pergam, Heiko Briesen
Summary: This study aims to improve the computational efficiency of a complex mathematical cake-filtration model with strong nonlinearities. A hybrid data-driven approach using proper orthogonal decomposition is employed, and optimal, globally defined basis functions are found based on a few sample simulations. The reduced-order model obtained from this approach has a 98% decrease in dimension compared to the full-order model, resulting in a 90% decrease in computational time for solving a benchmark optimization problem. This significant numerical speed-up offers the potential to use the reduced-order model in advanced process control and optimization methods.
COMPUTERS & CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Dinglian Shi, Jianlong Li, Yongnan Du, Quanquan Wu, Shan Huang, Hong Huang, Daishe Wu
Summary: In this study, the effect of air humidity on particle filtration performance was investigated through numerical simulations of filter cake formation using the Particle Flow Code (PFC) calculation program. The results revealed that relative humidity affects the deposition morphology, porosity, and filtration resistance characteristics of the filter cake. As the relative humidity increased, the particle moisture content, density, and surface viscosity increased, leading to a denser filter cake structure, decreased porosity, and increased total filtration resistance. Different types of particles exhibited varying trends in filter cake characteristics with changing humidity. Three types of variations in filtration performance with humidity were identified: (1) increased filtration resistance followed by decreased resistance, (2) decreased filtration resistance, and (3) increased filtration resistance.
Article
Automation & Control Systems
Benjamin Michaud, Francois Bailly, Eve Charbonneau, Amedeo Ceglia, Lea Sanchez, Mickael Begon
Summary: This article introduces Bioptim, a biomechanical optimal control framework based on musculoskeletal models. It can be used to investigate movement disorders, optimize human movement, and estimate physiological quantities. The software is computationally efficient, easily customizable, and suitable for various biomechanical problems and real-time applications.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2023)
Article
Energy & Fuels
Badr Bageri, Jaber AlJaberi, Osama Siddig, Abdulrauf R. Adebayo, Salaheldin Elkatatny
Summary: This study investigates the effect of perlite as a novel filtration agent on the quality of filter cake formed by ilmenite drilling fluid. The results show that perlite can improve the filtration properties and create an impermeable filter cake.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Chemical
Tolga Yildiz, Joel Gegenheimer, Marco Gleiss, Hermann Nirschl
Summary: The influence of particle size distribution and particle agglomeration on the compaction success of oscillatory shear in filter cakes was investigated. The results showed that the compaction potential increased with decreasing mean particle size and for more widely distributed material.
Article
Energy & Fuels
Aosheng Yang, Yinfei Liao, Maoyan An, Yijun Cao, Zhe Yang, Hourui Ren, Hailong Su, Qiqi Zou, Luojian Chen
Summary: This study investigated the impact of anionic polyacrylamide (APAM) and cetyl-trimethylammonium bromide (CTAB) on the filter cake characteristics in low-rank coal slime filtration. The results showed that both APAM and CTAB improved the filtration rate and reduced the moisture content of the filter cake. However, APAM had a better effect than CTAB. APAM decreased the slime Zeta potential and increased the slime floc size, while CTAB increased the surface hydrophobicity and reduced the surface tension of the filtrate.
Article
Energy & Fuels
Aosheng Yang, Yinfei Liao, Maoyan An, Yijun Cao, Zhe Yang, Hourui Ren, Hailong Su, Qiqi Zou, Luojian Chen
Summary: This study investigated the effect of anionic polyacrylamide (APAM) and cetyltrimethylammonium bromide (CTAB) on filter cake characteristics in low-rank coal (LRC) slime filtration. The results showed that APAM had a better filter cake effect than CTAB, improving filter cake permeability and filtration rate.
Article
Energy & Fuels
Jaber Al Jaberi, Badr S. Bageri, Abdulrauf R. Adebayo, Shirish Patil, Assad Barri, Rahul B. Salin
Summary: This paper presents a systematic method for evaluating formation damage, investigating the role of primary damage in the evolution of secondary damage, and analyzing the interaction of filter cake solvent with rock samples. The study shows that secondary damage is strongly influenced by the location and intensity of primary damage, as well as the rock type and pore structure. The extent of secondary damage also depends on the amount of barium sulphate deposited during primary damage.
Article
Engineering, Chemical
Cheng Chang, Qianmei Lyu, Linghu Cai, Zhongli Ji, Li Gensheng
Summary: This study investigates the filtration performance of fibrous filter media with different compressions through experiments, classical theory, and simulations, revealing the effects of compression on pore structure and flow field. Factors such as real fiber size distribution, orientation, and variation in fiber diameters with compression should be considered in predicting the performance of compressed filter media.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Jarrod R. Allred, Richard C. Daniel, Amy M. Westesen, John G. H. Geeting, Reid A. Peterson
Summary: This research investigates the issue of depth fouling in the filters used for treating radioactive waste at the Hanford site, and develops a model to understand the transition from pore fouling to cake filtration. The results indicate that, after the majority of pores have been plugged, the filter flux is primarily influenced by cake filtration on the surface of the fouled filter.
SEPARATION SCIENCE AND TECHNOLOGY
(2022)
Review
Biotechnology & Applied Microbiology
Andreas Reiner Laible, Anna Dinius, Marcel Schrader, Rainer Krull, Arno Kwade, Heiko Briesen, Stefan Schmideder
Summary: Filamentous microorganisms are used as molecular factories in industrial biotechnology, and a new approach called microparticle-enhanced cultivation (MPEC) has been introduced to improve productivity. Studies have shown that microparticles have effects on culture broth, filamentous morphology, and molecular biology, with metal oxide particles interacting strongly with their environment and affecting gene regulation, metabolism, and enzyme activity. Further understanding of the interactions between particles and cells can help improve microbial cultivation technology.
ENGINEERING IN LIFE SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
Peter Michael Bandelt Riess, Heiko Briesen, Daniel Schiochet Nasato
Summary: The systematic study of the effect of added wall support on granular bed porosity, simulated through discrete element method, shows that the porosity increase is proportional to the incorporated wall support, with the combination of cylindrical and angular inserts displaying the greatest effect (up to 26% increase). Sinusoidal porosity values near the walls are exhibited to clarify the effects, and the method presented could lead to filtration process improvements.
Article
Biotechnology & Applied Microbiology
Henri Muller, Lars Barthel, Stefan Schmideder, Tabea Schuetze, Vera Meyer, Heiko Briesen
Summary: This study presents a high-throughput image analysis pipeline based on stereomicroscopy to comprehensively assess the developmental program of filamentous fungi in submerged conditions. By tracking spore agglomeration and pellet formation, culture heterogeneities and pellet breakage can be quantified.
BIOTECHNOLOGY AND BIOENGINEERING
(2022)
Article
Chemistry, Physical
Alexander Poellmann, Matthias Reinelt, Heiko Briesen
Summary: Mathematical models can estimate the shelf life of water-sensitive products and this study proposes a simple kinetic model for the evaporation and condensation of water. Experimental data shows the hysteresis effect of silica gel and its dependence on previous relative humidity.
Article
Engineering, Chemical
Simon A. Schiele, Rolf Meinhardt, Tiaan Friedrich, Heiko Briesen
Summary: This article investigates the interaction between crystal growth and abrasion on crystal shape and discusses the potential misinterpretation of experimental data due to neglecting crystal shape.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Engineering, Chemical
Graziano Frungieri, Heiko Briesen
Summary: In this study, the preparation of oil-in-water Pickering emulsions induced by flow was investigated using a bivariate population balance model. The dynamics of oil droplets were characterized by their size and surface coverage by solid particles, and coalescence, breakup, and particle-droplet collisions were taken into account. Stabilization was observed in both uniform shear flow and turbulent flow field. The study provides new insights into the dynamics of Pickering emulsion preparation and serves as a reference for experimental setup and interpretation.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Computer Science, Interdisciplinary Applications
Philip Pergam, Heiko Briesen
Summary: This study aims to improve the computational efficiency of a complex mathematical cake-filtration model with strong nonlinearities. A hybrid data-driven approach using proper orthogonal decomposition is employed, and optimal, globally defined basis functions are found based on a few sample simulations. The reduced-order model obtained from this approach has a 98% decrease in dimension compared to the full-order model, resulting in a 90% decrease in computational time for solving a benchmark optimization problem. This significant numerical speed-up offers the potential to use the reduced-order model in advanced process control and optimization methods.
COMPUTERS & CHEMICAL ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Verena Bernadette Pannusch, Lukas Viebahn, Heiko Briesen, Mirjana Minceva
Summary: Supercritical fluid extraction from hops extracts essential oil that can be used for the flavoring of beer. This study analyzes and models the extraction kinetics of seven oil components under different pressure and temperature conditions. The results show that the internal-mass-transfer-control (IMTC) model effectively describes the extraction kinetics and can be used for predicting extract composition at different pressures and temperatures.
Article
Engineering, Chemical
Simon Alexander Schiele, Ramona Bier, Albin Ommert, Heiko Briesen
Summary: Due to the complex nature of crystallization processes, it is difficult to control them effectively. However, this study proposes a new method called direct crystal growth control (DGC), which avoids the need for thermodynamic parameterization. Instead, a single crystal is used as an analogue twin to measure the growth rate and serve as a proxy for the suspended crystals. By manipulating the temperature, the growth rate of the analogue twin can be kept constant, resulting in a constant growth rate for the suspended crystals. Further exploration of the hydrodynamic conditions is needed for accurate application of DGC.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Yvonne Kohl, Michelle Mueller, Marielle Fink, Marc Mamier, Siegfried Fuertauer, Roland Drexel, Christine Herrmann, Stephan Daehnhardt-Pfeiffer, Ramona Hornberger, Marius I. Arz, Christoph Metzger, Sylvia Wagner, Sven Saengerlaub, Heiko Briesen, Florian Meier, Tobias Krebs
Summary: In this study, a 96-well exposure system for nanomaterial safety assessment is developed and characterized using a lung epithelial model in an air-liquid interface. Sequential nebulization is applied to ensure reproducible distribution. Sequential exposure studies with different substances are conducted, followed by quantification of mass deposition and cell viability. This exposure system offers the possibility of high-throughput rates and sequential dosing, generating more reliable cell-based assay data for safety analysis of chemicals, drugs, and nanomaterials.
Article
Crystallography
Cornelia Eder, Simon A. Schiele, Frederik Luxenburger, Heiko Briesen
Summary: The integration of a flow-through cell into a Mach-Zehnder interferometer allows for detailed study of crystal dissolution, measuring the displacement velocity of a specific crystal facet and the solute concentration distribution in real time. The setup was successfully used to observe disintegration and mass transfer separately, improving predictions of active pharmaceutical ingredient bioavailability.
Article
Biotechnology & Applied Microbiology
Marcello Nussbaumer, Daniel van Opdenbosch, Max Engelhardt, Heiko Briesen, Tanja Karl
Summary: Mycelium composites have gained attention as potential substitutes for fossil-based plastics, particularly EPS. However, there is limited research on the combinations of fungi and lignocellulosic waste. This study explores the properties of mycelium composites produced with two white rot fungi and beech wood sawdust, highlighting the importance of fungal species selection and post-processing options.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Biotechnology & Applied Microbiology
Henri Mueller, Charlotte Deffur, Stefan Schmideder, Lars Barthel, Tiaan Friedrich, Lukas Mirlach, Joerg U. Hammel, Vera Meyer, Heiko Briesen
Summary: Filamentous fungi are capable of producing a wide range of biotechnological compounds. By utilizing synchrotron radiation-based X-ray microtomography, we were able to obtain highly resolved 3D micro-morphological analysis of submerged cultivated fungal pellets. This analysis provided detailed information about the number and density of spores, tips, branching points, and hyphae, thereby allowing us to monitor the growth of these fungal pellets in great detail for the first time.
BIOTECHNOLOGY AND BIOENGINEERING
(2023)
Article
Engineering, Chemical
B. M. Woerthmann, A. Hoffmann, J. Gerber, T. Wittkamp, H. Briesen
Summary: The hot-melt coating process is widely used in the food and pharmaceutical industries to change the functional properties of particle surfaces, form a protective layer, or influence the release rate of encapsulated substances. This study focuses on evaluating the interparticle batch homogeneity and comparing it with alternative methods for coating quality analysis. The results show that a process temperature of 40 degrees C has the most favorable effect on interparticle batch homogeneity, while spray rates between 3 and 20 g/min have minimal influence.
Article
Food Science & Technology
Benedikt K. L. Schmieder, Verena B. Pannusch, Lara Vannieuwenhuyse, Heiko Briesen, Mirjana Minceva
Summary: This study systematically investigated the influence of coffee grinding, water flow rate, and temperature on the extraction kinetics of espresso coffee components. The analysis revealed that flow rate had the strongest effect on the component mass in the cup, especially at finer grindings and higher water temperatures. Overall, the observed influences were minor compared to changes resulting from differences in total extracted espresso coffee mass.
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)
