Questa è la nostra ultima selezione di pubblicazioni e brevetti mondiali in inglese sui gas industriali, tra numerose riviste scientifiche online, classificate e focalizzate su gas industriali, acetilene, argon, idrogeno, propano, butano, monossido di carbonio, pneumatica, taglio laser, saldatrici, unità di refrigerazione, saldatura a gas, taglio dei metalli e torcia a gas.
Insights into the Adsorption of Carbon Dioxide in Zeolites ITQ-29 and 5A Based on Kinetic Measurements and Molecular Simulations
Published on 2025-07-11 by Magdy Abdelghany Elsayed, Shixue Zhou, Xiaohui Zhao, Gumawa Windu Manggada, Zhongyuan Chen, Fang Wang, Zhijuan Tang @MDPI
Abstract: Understanding the adsorption mechanism is essential for developing efficient technologies to capture carbon dioxide from industrial flue gases. In this work, laboratory measurements, density functional theory calculations, and molecular dynamics simulations were employed to study CO2 adsorption and diffusion behavior in LTA-type zeolites. The CO2 adsorption isotherms measured in zeolite 5A are best described by the Toth model. Thermodynamic analysis indicates that the adsorption process is spont[...]
Our summary: Study of CO2 adsorption and diffusion in LTA-type zeolites using laboratory measurements, DFT calculations, and molecular dynamics simulations. Thermodynamic analysis shows spontaneous and exothermic adsorption with heterogeneous interactions at Ca2+ and Na+ sites. Comparison between zeolites 5A and ITQ-29 reveals differences in adsorption energy and diffusion kinetics.
Adsorption, Zeolites, Kinetic Measurements, Molecular Simulations
Publication
Process for converting oxygenates to distillate fuels
Patent published on the 2025-06-26 in WO under Ref WO2025136871 by UOP LLC [US] (Jeroro Eseoghene [us], Serban Manuela [us])
Abstract: A process is provided to produce increased amounts of cycloparaffin compounds in a methanol to jet fuel process by modifying the olefin oligomerization step that after hydrogenation provides the increased quantities of cycloparaffins for jet fuel. A two stage oligomerization process is employed in which an acidic catalyst such as a zeolite is in one reactor and a metal, such as nickel, on alumina catalyst is in a second reactor. The two stages may be in either order in the process. A small amoun[...]
Our summary: Process for increasing cycloparaffin compounds in methanol to jet fuel process by modifying olefin oligomerization step, utilizing acidic and metal catalysts in two reactors, and adding aromatic compounds to feed.
olefin oligomerization, cycloparaffin compounds, methanol to jet fuel, two stage oligomerization
Patent
