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Forced periodic operations of a chemical reactor for methanol synthesis - The search for the best scenario based on Nonlinear Frequency Response Method. Part II Simultaneous modulation of two inputs
(Chemical Engineering Science, 2022)
The analysis of the potential to improve performance of a methanol synthesis reactor through forced periodical operations by Nonlinear Frequency Response method is presented. The methanol synthesis in an isothermal and ...
Impact of Crosslinking on the Characteristics of Pectin Monolith Cryogels
(MDPI, 2022)
In this research, the pectin monoliths were prepared via the sol-gel process through different routes of crosslinking and additional freeze-drying. The crosslinking reaction was induced by the use of calcium ions in aqueous ...
Transesterification of used cooking sunflower oil catalyzed by hazelnut shell ash
(Renewable Energy, 2022)
Hazelnut shell ash was investigated as a new base catalyst for the transesterification of used cooking sunflower oil to biodiesel. To understand its catalytic properties, the prepared ash was characterized by EDX, XRD, ...
Forced periodic operations of a chemical reactor for methanol synthesis - The search for the best scenario based on Nonlinear Frequency Response Method. Part I Single input modulations
(Chemical Engineering Science, 2022)
In this two-part paper a comprehensive study of the potential to improve performance criteria of a methanol synthesis reactor through forced periodical operations is presented. The study uses the Nonlinear Frequency Response ...
Methacrylate-Based Polymeric Sorbents for Recovery of Metals from Aqueous Solutions
(MDPI, 2022)
The industrialization and urbanization expansion have increased the demand for precious and rare earth elements (REEs). In addition, environmental concerns regarding the toxic effects of heavy metals on living organisms ...
Dispersive Solid–Liquid Microextraction Based on the Poly(HDDA)/Graphene Sorbent Followed by ICP-MS for the Determination of Rare Earth Elements in Coal Fly Ash Leachate
(MDPI, 2022)
A dispersive solid-phase microextraction (DSPME) sorbent consisting of poly(1,6-hexanedi-ol diacrylate)-based polymer microspheres, with embedded graphene microparticles (poly(HDDA)/g-raphene), was synthesized by microfluidic ...
Recovery of bioactive molecules from Hypericum perforatum L. dust using microwave-assisted extraction
(Springer Science and Business Media Deutschland GmbH, 2024)
Microwave-assisted extraction (MAE) conditions were optimized to improve extract quality of medicinal herb — Hypericum perforatum L. (St. John’s wort) dust. Response surface methodology was applied initially to obtain the ...
Immobilization of Horseradish Peroxidase on Macroporous Glycidyl-Based Copolymers with Different Surface Characteristics for the Removal of Phenol
(Springer, 2022)
Novel macroporous copolymers of glycidyl methacrylate and ethylene glycol dimethacrylate with mean pore size diameters ranging from 150 to 310 nm were synthesized by dispersion polymerization and modified with ethylenediamine. ...
Free volume theory and extended mixing rule implementation for estimation of liquid viscosity of flue gas desulphurization candidate solvents
(Journal of Molecular LiquidsJournal of Molecular Liquids, 2022)
The free volume theory model was used to estimate viscosity of eight pure substances and their twenty-three binary mixtures. The selected viscosity data included compounds such as alcohol, ether, lactam, amine and polymer, ...
Valorization of lignocellulosic wastes for extracellular enzyme production by novel Basidiomycetes: screening, hydrolysis, and bioethanol production
(Biomass Conversion and Biorefinery, 2022)
This study aimed at the exploitation of lignocellulosic wastes for the evaluation of the newly isolated white-rot fungal strains enzymatic potential for bioethanol production. The isolates belonging to Basidiomycetes, Fomes ...