Hierarchical porous molecular sieve
WebMolecular sieves are crystalline metal aluminosilicates having a threedimensional interconnecting network of silica and alumina tetrahedra. Natural water of hydration is removed from this network by heating to produce uniform cavities which selectively adsorb molecules of a specific size. A 4 to 8-mesh sieve is normally used in gasphase ... Web16 de mar. de 2024 · Silicoaluminophosphate molecular sieve (SAPO-34, CHA topological structure, pore size 0.38 nm, high hydrothermal stability, mild acidity) shows superior MTO catalytic performance. Using nonpetroleum resources to produce light olefins is a potential alternative method [ 1 ].
Hierarchical porous molecular sieve
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Web17 de mai. de 2015 · Hierarchical porous molecular sieve (HPMS) has regular structure and high hydrothermal stability, and could overcome the drawbacks of Al-MCM-41 and … Web16 de set. de 2002 · It is essential to create solid-state metal-complex-based sorbents such as metallo-organic molecular sieves with genuinely inherent microporous structures to create sufficiently large pore volumes and to decrease mass-transfer resistances.
WebSAPO—based catalyst with a hierarchical porous structure showed excellent catalytic performance in dimerization of α-methylstyrene with a high degree of conversion and selectivity for linear isomers. Next ... which are future fragments of the SAPO-11 molecular sieve, which can significantly facilitate crystallization. WebIn this study, we successfully synthesized a hydroisomerization catalyst that is based on a SAPO-11 molecular sieve (SAPO-11-A-6) with a sea urchin-like and hierarchical …
WebThe invention discloses a preparation method of a hierarchical porous Fe-MFI molecular sieve, which comprises the following steps: (1) under the condition of stirring, adding TPAOH aqueous solution and deionized water into TEOS, keeping the temperature at 50 +/-5 ℃ for 10 hours after the addition is finished, and then heating to 80 +/-5 ℃ and … Web1 de set. de 2024 · The nano-sized small-crystal and hierarchical SAPO-11 molecular sieves were successfully synthesized with l-Lysine as the crystal growth inhibitor, and their particle size reached 80 nm at the minimum, and the crystal size was 22.1 nm.With the synthesized SAPO-11 molecular sieve as support, the corresponding NiW supported …
WebSynthesis of an extra-large molecular sieve using proton sponges as organic structure-directing agents. Proceedings of the National Academy of Sciences 2013, 110 (10) ...
WebCN-108178164-B chemical patent summary. fladenbrot im thermomixWeb22 de out. de 2015 · The present invention relates to a kind of preparation method of hierarchical porous structure silicon phosphorus aluminium SAPO molecular sieve, … cannot resolve symbol argWeb23 de nov. de 2024 · The SSZ-13 molecular sieve with an added amount of 0.1 (F/Si) has the highest CO 2 adsorption performance. The adsorption amount was 4.55 mmol/g at 1 … cannot resolve symbol apacheWeb27 de jan. de 2024 · Abstract A way of synthesizing a pelletized high-crystallinity SAPO-11 molecular sieve with a hierarchical pore structure is proposed for the first time. … fla dept of children \u0026 familiesWeb12 de abr. de 2024 · In the study conducted by Chuah et al. [3], the development of mixed-matrix carbon molecular sieve membranes (CMSMs) with the incorporation of carbon-based fillers (i.e., graphene oxide (GO)... cannot resolve symbol argsWeb23 de out. de 2024 · shaped hierarchical porous molecular sieves with di fferent crystallization times was investigated. It was found that the nano-rod-shaped molecular sieves were formed by the accumulation of... cannot resolve symbol arrayadapterWebmolecular sieves to form a nano-rod SAPO-11 molecular sieve structure. The physiochemical properties of the nano-rod molecular sieves, formation process, and crystallization mech-anism of nano-rod-shaped SAPO-11 molecular sieves with … cannot resolve symbol animal