Search
Filters
total: 706
-
Catalog
Search results for: Chemical Technology
-
Epoxidation of natural limonene extracted from orange peels with hydrogen peroxide over Ti-MCM-41 catalyst
Publication -
Green method of conversion of geraniol to value-added products in the presence of selected minerals
Publication -
The oxidation of limonene at raised pressure and over the various titanium-silicate catalysts
Publication -
Fe-modified activated carbon obtained from biomass as a catalyst for α-pinene autoxidation
Publication -
High pressure impact on changes in potato starch granules
Publication -
Statistical optimization of the synthesis of plant-derived fatty acid esters of TMP over homogeneous organometallic tin catalyst
Publication -
Effect of extraction method on the antioxidative activity of ground elder (Aegopodium podagraria L.)
Publication -
Effect of the Yerba mate (Ilex paraguariensis) brewing method on the content of selected elements and antioxidant potential of infusions
Publication -
Selection of cutting and washing fluids as a method of waste minimization
PublicationW artykule przedstawiono wyniki testów korozyjności dla cieczy obróbkowych wykorzystywanych do produkcji przekładni skrzyni biegów. Testy prowadzono zgodnie z normami: DIN 51360-2 (Ford-test) oraz PN-92/M-55789. Badaniom poddano trzy ciecze obróbkowe oraz trzy ciecze chłodzące. Wraz ze spadkiem stężenia użytej cieczy, obserwowano większe ogniska korozji.
-
Transesterification of postfrying oils and utilization of the glycerol phase
PublicationPrzedstawiono metodę wytwarzania biodiesla z oleju posmażalniczego oraz zaproponowano sposób zagospodarowania gliceryny, powstającej jako produkt uboczny tego procesu. Wykazano, że odpadowy olej jadalny może stanowić substrat reakcji transestryfikacji prowadzącej do otrzymania EMKT. Przeprowadzono proces transestryfikacji zasadowej I i II- stopniowej oraz estryfikację kwaśną. Właściwości fizykochemiczne otrzymanego paliwa porównano...
-
Biopolymers based paper coating with promoted grease resistivity, bio-degradable and mechanical properties
Publication -
Analysis of tank safety with propane-butane on LPG distribution station
Publication -
PANI/NaTaO3 composite photocatalyst for enhanced hydrogen generation under UV light irradiation
Publication -
Single-walled carbon nanotubes fractionation via electrophoresis
Publication -
Reversible electron charge transfer in single-wall carbon nanotubes
Publication -
Preparation and characterization of catalyst mix Fe-Co/MgO for carbon nanotubes growth
Publication -
Reduced graphene oxide and inorganic nanoparticles composites – synthesis and characterization
Publication -
Removal of Ni2+ from Aqueous Solutions by Adsorption Onto Magnetic Multiwalled Carbon Nanotube Nanocomposite
Publication -
Enhancement of Thermal Stability, Conductivity and Smoke Suppression of Polyethylene Composites with Exfoliated MoS2 Functionalized with Magnetite
Publication -
High Pressure Synthesis versus Calcination – Different Approaches to Crystallization of Zirconium Dioxide
Publication -
Equilibrium and kinetics studies for the adsorption of Ni2+ and Fe3+ ions from aqueous solution by graphene oxide
Publication -
Liquid-solid interaction during formation of nanocomposite systems
PublicationW pracy zaprezentowano wyniki badań nad zmianami strukturalnymi w układach ciekłego Bi i małych cząsteczek Ni lub Cu w zakresie temperatur od 615 do 1145K. Zaobserwowano (SEM) mikrostruktury kompozytowe i przeanalizowano dla różnych temperaturach i różnych czasów mieszania. Strukturę układów Bi-Ni oraz Bi-Cu, zarówno w stanie stałym i ciekłym, zbadano za pomocą dyfrakcji rentgenowskich.
-
Morphology and the physical and thermal properties of thermoplastic polyurethane reinforced with thermally reduced graphene oxide
PublicationIn this study, thermally reduced graphene oxide (TRG)-containing polyurethane nanocomposites were obtained by the extrusion method. The content of TRG incorporated into polyurethane elastomer systems equaled 0.5, 1.0, 2.0 and 3.0 wt%. The morphology, static and dynamic mechanical properties, and thermal stability of the modified materials were investigated. The application of TRG resulted in a visible increase in material stiffness...
-
Emulsifi ers from renewable materials: an eco-friendly synthesis and properties
PublicationThe focus of this study was the preparation of novel bio based polyglycerol emulsifiers characterized by a one pot synthesis, thus by modified properties with respect to interfacial activity and effectiveness as emulsion stabilizers. The final products of the esterification process, carried out in the presence of carboxylates were used directly as emulsifiers (without purification or fractionation). Polyglycerol emulsifiers obtained...
-
Graphene hydrogels with embedded metal nanopatricles as efficient catalysts in 4-nitrophenol reduction and methylene blue decolorization
PublicationSynthesis and characterization of the graphene hydrogels with three different metallic nanoparticles, that is Au, Ag and Cu, respectively is presented. Synthesized in a one-pot approach graphene hydrogels with embedded metallic nanoparticles were tested as heterogeneous catalysts in a model reaction of 4-nitrophenol reduction. The highest activity was obtained for graphene hydrogel with Cu NPs and additional reaction of methylene...
-
Visible light-enhanced degradation of phenol in the presence of modified TiO2
PublicationOpracowano metody otrzymywania katalizatora na bazie tlenku tytanu (IV) aktywowanego światłem widzialnym do fotokatalitycznego utleniania zanieczyszczeń. Tlenek tytanu (IV) modyfikowano wybranymi organicznymi i nieorganicznymi domieszkami. Aktywność fotokatalityczną otrzymanych próbek katalizatorów zbadano w reakcji degradacji fenolu (co= 0,21 mmol/dm3) w roztworze wodnym, w obecności światła widzialnego (l>400). Wybrane katalizatory...
-
Optimizing CO2 Purification in a Negative CO2 Emission Power Plant
PublicationIn the pursuit of mitigating CO2 emissions, this study investigates the optimisation of CO2 purification within a Negative CO2 Emission Power Plant using a spray ejector condenser (SEC) coupled with a separator. The approach involves direct-contact condensation of vapour, primarily composed of an inert gas (CO2), facilitated by a subcooled liquid spray. A comprehensive analysis is presented, employing a numerical model to simulate...
-
Zr‐Based Metal‐Organic Framework UiO‐66/Ultem® 1000 Membranes for Effective CO2/H2 Separation
PublicationMixed-matrix membranes (MMMs) using UiO-66 nanofillers as dispersing inorganic phase and polyetherimide (PEI) as continuous polymeric matrix were synthesized. Different UiO-66 loadings of 10, 20, and 30 wt % were applied. The morphology and UiO-66 dispersion over the prepared MMMs were examined. Gas separation measurements were performed for H2/CO2 gas mixture to evaluate the influence of UiO-66 on the separation yield of resulting...
-
JOURNAL OF CHEMICAL PHYSICS
Journals -
CHEMICAL PHYSICS
Journals -
CHEMICAL ENGINEERING JOURNAL
Journals -
CHEMICAL PHYSICS LETTERS
Journals -
JOURNAL OF CHEMICAL THERMODYNAMICS
Journals -
CHEMICAL PAPERS
Journals -
CHEMICAL COMMUNICATIONS
Journals -
CHEMICAL ENGINEERING AND PROCESSING
Journals -
Physico-Chemical Mechanics of Materials
Journals -
Chemical Biology & Drug Design
Journals -
Piotr Jamroz dr hab. inż.
PeoplePiotr Jamroz graduated from Wroclaw University of Technology, Faculty of Chemistry in 1998 and obtained his PhD from the same university in 2003. Currently he works as an associate professor at Wroclaw University of Science and Technology, Faculty of Chemistry, Division of Analytical Chemistry and Chemical Metallurgy. His research interests are related to generation and diagnostics of different kinds of plasma sources, including...
-
Józef Pacyna prof. dr hab. inż.
People -
CHEMICAL ENGINEERING TRANSACTIONS
Journals -
CHEMICAL ENGINEERING RESEARCH & DESIGN
Journals -
CHEMICAL REVIEWS
Journals -
FOOD AND CHEMICAL TOXICOLOGY
Journals -
Potential applications of by-products from the coffee industry in polymer technology – Current state and perspectives
PublicationCoffee is one of the most popular beverages in the world, and its popularity is continuously growing, which can be expressed by almost doubling production over the last three decades. Cultivation, processing, roasting, and brewing coffee are known for many years. These processes generate significant amounts of by-products since coffee bean stands for around 50% of the coffee cherry. Therefore, considering the current pro-ecological...
-
More than just a beer—the potential applications of by-products from beer manufacturing in polymer technology
PublicationBeer is the most popular alcoholic beverage in the world, and its popularity is continuously growing. Currently, global beer production is estimated at around 2 billion hectoliters. Nevertheless, the increasing production capacity implicates the rising issue of generated by-products—brewers’ spent grain, spent hops, spent yeast, and wastewater. They are generated in massive amounts, so having in mind the current pro-ecological...
-
Chemical Industry & Chemical Engineering Quarterly
Journals -
CHEMICAL SENSES
Journals -
CHEMICAL ENGINEERING
Journals -
Chemical Science
Journals