Zobrazeno 1 - 10
of 10
pro vyhledávání: '"623"'
Publikováno v:
Journal of Industrial and Engineering Chemistry. 81:206-218
In this study, palladium composite membranes were fabricated on porous stainless steel (PSS) supports using silicoaluminophosphate (SAPO) zeolite (SAPO-34) as a diffusion barrier and substrate modifier. The vacuum-assisted seeding and secondary growt
Publikováno v:
International Journal of Hydrogen Energy. 46:2255-2268
PdAu composite membranes were applied for the preparation of PtNaA-PdAu catalytic membranes for hydrogen production from the water gas shift reaction. In the first stage, the deposition of NaA zeolite on top of the PdAu alloys was optimized. Function
Autor:
Noriyuki Yasuda, Motomu Sakai, Genki Kobayashi, Masahiko Matsukata, Yoshikazu Oshima, Naoyuki Fujimaki, Masahiro Seshimo
Publikováno v:
Microporous and Mesoporous Materials. 284:360-365
Tubular zeolite *BEA membrane was prepared by a hydrothermal secondary growth method in the absence of an organic structure directing agent (OSDA). Membrane formation process was carefully observed by using FE-SEM, XRD, and N2 adsorption, and the rol
Autor:
Manuel F. Meléndrez, Claudio A. Zaror, Norberto J. Abreu, Héctor Valdés, Federico Azzolina-Jury
Publikováno v:
Microporous and Mesoporous Materials. 274:138-148
Ethylene is a plant growth regulator that induces accelerated softening and ripening of fruits during transport and storage. Among the most applied methods for ethylene control, adsorption appears as a cheap and efficient technique. In this work, the
Publikováno v:
Separation and Purification Technology. 197:418-431
The location of Ag+-clusters in well-defined dielectric cavities of bi-metallic AgxNa96−x-LSX, AgxLiyNa96−x−y-LSX, and LiyAgxNa96−x−y-LSX zeolites was investigated by XRD, SEM, XPS, ESR, PESA and TG-DTG characterizations. The results showed
Autor:
Lukas Tillmann, Mariam Salazar, Ralf Becker, Wolfgang Grünert, Stefanie Hoffmann, Vera Singer
Publikováno v:
Applied Catalysis B: Environmental. 218:793-802
Hybrid catalysts for the selective catalytic reduction of NO by NH3, which have been introduced as physical mixtures between an oxidation catalyst and an SCR catalyst, have been prepared by precipitation of the former onto the latter. Mn oxide, CeO2,
Publikováno v:
Chemical Engineering Journal. 302:801-810
A kinetic model of 11 lumps (dimethyl ether, methanol, water, ethylene, propylene, butenes, C2–C4 paraffins, C5+ hydrocarbons, BTX aromatics, methane and CO) has been determined for the reaction of DME to olefins (DTO process) over a HZSM-5 zeolite
Publikováno v:
Journal of Solid State Chemistry. 294:121862
Characterization of the acidic properties of solid acid catalysts is essential to understanding their catalytic performance with respect to activity, deactivation rate and product selectivity. In this work, trimethylphosphine (TMP) was used as a prob
Publikováno v:
Microporous and Mesoporous Materials. 225:564-572
Three fully indium-exchanged zeolite A (LTA) crystals, In-A, were prepared by the reaction of fully dehydrated Tl-A with indium metal at 623, 673, and 723 K. Three additional crystals were prepared as above and then hydrated, washed with water, and r
Publikováno v:
Chemical Engineering Research and Design. 106:33-42
In chemical reactions, a principal and influential parameter is particle size. The effect of HZSM-5 catalyst particle size on the kinetics of methanol conversion to gasoline has been investigated in this work. Three catalysts of 90 nm (Z1), 1 μm (Z2