Results 11 to 20 of about 1,887,958 (350)
Copper catalysis at operando conditions—bridging the gap between single nanoparticle probing and catalyst-bed-averaging [PDF]
Nat Commun, 2020 In catalysis, nanoparticles enable chemical transformations and their structural and chemical fingerprints control activity. To develop understanding of such fingerprints, methods studying catalysts at realistic conditions have proven instrumental ...
David Albinsson +6 more
semanticscholar +2 more sources
Reactor Structure for the Decomposition of ADN-Based Monopropellant
Aerospace, 2023 Ammonia dinitramide (ADN)-based liquid monopropellants are considered to be environmentally friendly alternatives to the toxic and carcinogenic hydrazine-based propellants. Hence, Space Solutions Co., Ltd.
Wonjae Yoon +2 more
doaj +1 more source
Green Energy & Environment, 2021 Hydrotreating of vacuum residue by ebullated-bed shows tremendous significance due to more stringent environmental regulations and growing demand for lighter fuels. However, enhancing the catalyst stability still remains as a challenging task.
Huihong Zhu +9 more
doaj +1 more source
Computational Fluid Dynamics of Ammonia Synthesis in Axial-Radial Bed Reactor
Energies, 2023 Ammonia synthesis by the Haber–Bosch method is a typical and effective implementation of the chemical process in the large-scale fertiliser industry. Due to the growing demand for fertilisers and food, it is desirable to study this process thoroughly ...
Mariusz Tyrański +3 more
doaj +1 more source
The catalytic oxidation of organic contaminants in a packed bed reactor [PDF]
, 1994 The catalytic oxidation of several hydrocarbons was studied over noble metal and metal oxide catalysts. A fast empirical method was developed to determine the minimum operating temperature required to guarantee complete conversion of the hydrocarbon.\ud \
Beld, L. van de +4 more
core +18 more sources
Journal of Mechanical Engineering Science and Technology, 2018 The increasing motor vehicle in Indonesia causes air pollution. Several gases that arise as pollutants are carbon monoxide (CO), hydrocarbon (HC), nitrogen oxides (NOx).
Riky Arianto, Imam Muda Nauri
doaj +1 more source
Materials & Design, 2022 The preparation and use of Guefoams as heterogeneous catalyst is reported. The Guefoam catalyst consists of an open-pore Al-Si foam that accommodates a freely mobile guest phase (Ni/CeO2/Al2O3 particles) in its cavities, with neither a physical nor a ...
L.P. Maiorano +5 more
doaj +1 more source
Selective hydrogenation in trickle-bed reactor. Experimental and modelling including partial wetting. [PDF]
, 2003 A steady state model of a trickle bed reactor is developed for the consecutive hydrogenation of 1,5,9-cyclododecatriene on a Pd/Al2O3 catalyst. Various experiments have shown that the selectivity of this reaction towards the product of interest is much ...
Delmas, Henri +3 more
core +3 more sources
Variation of Bed Height with Bubbling in an Air/Catalyst Fluidized Bed [PDF]
Nature, 1963 DURING a preliminary investigation of mass transfer from bubbles in a fluidized bed composed of cracker catalyst (mean particle size 60µ), it was noticeable that the presence of bubbles caused a reduction of the height of the bed which was obtained when either a bubble flowstream or individual bubbles were injected into the bed.
J. F. RICHARDSON, L. DAVIES
openaire +1 more source
Heat Transfer—Asian Research, 2000 AbstractHeat and mass transfer characteristics within a reforming catalyst bed have been analytically investigated. A numerical analysis was carried out in a two‐dimensional steady‐state model of a reforming catalyst bed. The reforming tube was filled with catalyst and the tube wall was uniformly heated; a mixture of steam and methane was reformed ...
Yutaka USAMI +2 more
openaire +2 more sources