publication . Article . Other literature type . 2016

Large Ferrierite Crystals as Models for Catalyst Deactivation during Skeletal Isomerisation of Oleic Acid : Evidence for Pore Mouth Catalysis

Wiedemann, Sophie C. C.; Ristanović, Zoran; Whiting, Gareth T.; Reddy Marthala, V. R.; Kärger, Jörg; Weitkamp, Jens; Wels, Bas; Bruijnincx, Pieter C. A.; Weckhuysen, Bert M.;
  • Published: 04 Jan 2016
  • Country: Netherlands
Abstract
Large zeolite crystals of ferrierite have been used to study the deactivation, at the single particle level, of the alkyl isomerisation catalysis of oleic acid and elaidic acid by a combination of visible micro-spectroscopy and fluorescence microscopy (both polarised wide-field and confocal modes). The large crystals did show the desired activity, albeit only traces of the isomerisation product were obtained and low conversions were achieved compared to commercial ferrierite powders. This limited activity is in line with their lower external non-basal surface area, supporting the hypothesis of pore mouth catalysis. Further evidence for the latter comes from visi...
Subjects
free text keywords: ferrierite, isomerisation, micro-spectroscopy, pore mouth catalysis, zeolites, LONG N-ALKANES, PT/H-ZSM-22 BIFUNCTIONAL CATALYST, TO-HYDROCARBONS REACTION, KEY-LOCK CATALYSIS, MOLECULAR-SIEVES, PARTICLE SPECTROSCOPY, NANOSCALE INFLUENCE, SHAPE SELECTIVITY, GUEST MOLECULES, ZEOLITE, Crystal, Organic chemistry, Chemistry, Elaidic acid, chemistry.chemical_compound, Alkyl, chemistry.chemical_classification, Isomerization, Molecular sieve, Catalysis, Photochemistry
Related Organizations
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publication . Article . Other literature type . 2016

Large Ferrierite Crystals as Models for Catalyst Deactivation during Skeletal Isomerisation of Oleic Acid : Evidence for Pore Mouth Catalysis

Wiedemann, Sophie C. C.; Ristanović, Zoran; Whiting, Gareth T.; Reddy Marthala, V. R.; Kärger, Jörg; Weitkamp, Jens; Wels, Bas; Bruijnincx, Pieter C. A.; Weckhuysen, Bert M.;