Catalytic activity and extra-large pores of germanosilicate UTL zeolite demonstrated with decane test reaction
作者： Nataliia Kasian , Gina Vanbutsele , Kristof Houthoofd , Tamas I. Koranyi , Johan A. Martens
DOI: 10.1039/C0CY00043D
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摘要: Pyridine adsorption monitored by FTIR spectroscopy revealed germanosilicate UTL type zeolite to contain intrinsic Bronsted acidity required for catalytic activity. Germanosilicate was converted into a bifunctional catalyst and evaluated in n-decane isomerization hydrocracking. To assess the stability of framework during preparation use, three different strategies converting were followed: incipient wetness impregnation with Pt(NH3)4Cl2 solution before after evacuation template calcination, physical mixing calcined Pt-containing amorphous silica. All samples showed activity but very degrees. The possibility structure degradation catalysis investigated XRD 29Si MAS NMR. as-made platinum pretreatment reactor led superior test previously used probe micropore architectures 8-, 10- 12-membered rings. Its validity is now extended extra-large pore zeolites. linear trend increasing ethyloctanevs.methylnonane selectivity size has been confirmed also 14 membered
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