Dies ist unsere neueste Auswahl an weltweiten Veröffentlichungen und Patenten in englischer Sprache zum Thema Industriegase, zwischen vielen wissenschaftlichen Online-Zeitschriften, klassifiziert und konzentriert auf Industriegase, Acetylen, Argon, Wasserstoff, Propan, Butan, Kohlenmonoxid, Pneumatik, Laserschneiden, Schweißmaschinen, Kühlaggregate, Gasschweißen, Metallschneiden und Gasbrenner.
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
Apparatus and process for ammonia cracking catalyst activation
Patent published on the 2025-05-22 in AU under Ref AU2024227784 by AIR PRODUCTS AND CHEMICALS INC (Shaw Andrew, Shelley Jacob, Xie Kui, Saloway Simon Craig, Patil Dhaval Dhondu)
Abstract: An apparatus and process for the activation of catalyst material utilized in ammonia cracking can include an initial use of hydrogen and heat to perform an initial stage of catalyst activation and a subsequent use of ammonia and heat to perform a subsequent state of catalyst activation. The subsequent use of ammonia can be configured so that different catalytic material at different plant elements are activated in a pre-selected sequence to provide activation of the catalytic material utilized i[...]
Our summary: Apparatus and process for activating catalyst material used in ammonia cracking, utilizing hydrogen and heat followed by ammonia and heat in a pre-selected sequence to avoid excess temperatures and sintering.
ammonia, cracking, catalyst, activation
Patent
Molecular design of electroactive species and materials processing methods in organic redox flow batteries
Patent published on the 2025-03-06 in WO under Ref WO2025050122 by BIOZEN BATTERIES INC [US] (Rengert Zachary David [us], Jones Seamus Dylan Summerville [us], Kirchhofer Nathan Daniel [us])
Abstract: A composition of matter useful as a posolyte or negolyte in a redox flow battery, including a compound comprising a first electroactive moiety and one or more solubilizing moieties each connected to the first electroactive moiety directly or via linker moieties, wherein the linker moieties, when present each comprise carbon and could contain at least one of hydrogen, oxygen, nitrogen, sulfur, or silicon.[...]
Our summary: Composition of matter for redox flow batteries with electroactive and solubilizing moieties connected by linker moieties containing carbon and other elements.
molecular design, electroactive species, materials processing, organic redox flow batteries
Patent
Hydrogenated polymers produced using antioxidant, and rubber compositions incorporating same
Patent published on the 2025-03-06 in WO under Ref WO2025049846 by MAGISTRELLI JEFFREY M [US] (Hue Ryan J [us], Magistrelli Jeffrey M [us])
Abstract: Embodiments of the present disclosure are directed to hydrogenated functionalized polymers produced from the steps of: producing a living polymer from the anionic polymerization of a conjugated diolefin monomer in the presence of a solvent; producing a functionalized polymer by reacting the living polymer with at least one silane modifier; adding an antioxidant to the functionalized polymer in the solvent; and producing the hydrogenated functionalized polymer by hydrogenating the functionalized [...]
Our summary: Production of hydrogenated functionalized polymers from anionic polymerization of conjugated diolefin monomer, reaction with silane modifier, addition of antioxidant, and hydrogenation with catalyst, resulting in degree of hydrogenation of at least 75 mol% measured by 1H NMR.
hydrogenated polymers, antioxidant, rubber compositions, anionic polymerization
Patent
Catalytic membrane reactor for in-situ water removal in the synthesis of valuable chemicals
Patent published on the 2025-03-06 in WO under Ref WO2025049377 by GTI ENERGY [US] (Xu Weiwei [us], Li Shiguang [us])
Abstract: Methods and systems or devices for synthesis of valuable chemicals from carbon dioxide and hydrogen are provided. A high surface area hollow fiber catalytic membrane reactor such as with hollow fibers coated with a water permeable membrane material is used. The reactor also contains methanol synthesis component, and as needed, a dehydration catalyst component such that the two-step reaction takes place on the catalyst surface. Produced water permeates through the membrane, exiting the reactor im[...]
Our summary: Catalytic membrane reactor with water removal for synthesis of valuable chemicals from CO2 and H2. High surface area hollow fiber design with methanol synthesis and dehydration catalyst components. Produced water permeates through membrane while unreacted materials exit. Valuable chemicals include LPG, DME, methanol, ethanol, olefin, jet fuel.
catalytic membrane reactor, in-situ water removal, valuable chemicals, hollow fiber
Engine torque force to a rotary shaft
Patent published on the 2025-03-06 in WO under Ref WO2025050134 by DAYA ARVIND A [US] (Daya Arvind [us])
Abstract: The tractive torque force generated trough mechanical advantage is deployed by an engine machinery, where friction between the driving wheels and the driven wheels of assorted sizes can produce rotational torque force such as a steam locomotive tractive force. Torque developed by the propelling wheels produced by the said engine. An internal combustion engine that eliminates the need for a crankshaft and camshaft includes at least a cylinder, piston, piston rod on a crosshead and extension conne[...]
Our summary: Engine torque force is generated by an internal combustion engine without the need for a crankshaft and camshaft, allowing for modifications to accommodate various fuels. This torque force can be utilized to propel large wheels or reciprocating long arms on a common shaft, producing significant rotational power.
engine torque force, tractive torque force, rotational torque force, internal combustion engine
Patent
The Influence of Laser Cutting Parameters on the Heat-Affected Zone in Fast-Growing Malaysian Wood Species
Published on 2025-02-07 by Mohd Sharizal Sobri, Sharizal Ahmad Sobri, Mohd Natashah Norizan, Andi Hermawan, Mohd Hazim Mohamad Amini, Mazlan Mohamed, Wan Omar Ali Saifuddin Wan Ismail, Al Amin Mohamed Sultan @MDPI
Abstract: Wood is a naturally occurring renewable resource widely used in various industries, including in construction, packaging, furniture, and paneling. In Malaysia, 80% of furniture products are made from wood, making it a crucial material in this sector. Laser cutting is an advanced machining technique that enhances precision and minimizes material waste, yet its thermal effects, particularly the heat-affected zone (HAZ), remain a challenge. This study investigates how laser cutting parameters&a[...]
Our summary: Laser cutting parameters impact on heat-affected zone in Malaysian wood species, Study on laser cutting effects in fast-growing wood species, Optimal settings for minimizing heat-affected zone in laser cutting, Practical insights for laser parameter optimization in wood machining
laser cutting, heat-affected zone, wood species, Malaysian, parameters, optimization, precision
