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dc.rights.licenseCC-BY-NC-ND
dc.contributor.advisorRuiz-Martínez, J.
dc.contributor.advisorWeckhuysen, B.M.
dc.contributor.authorGoetze, J.G.
dc.date.accessioned2013-06-06T17:00:57Z
dc.date.available2013-06-06
dc.date.available2013-06-06T17:00:57Z
dc.date.issued2013
dc.identifier.urihttps://studenttheses.uu.nl/handle/20.500.12932/13060
dc.description.abstractThe formation of coke on individual Fluid Catalytic Cracking (FCC) catalyst particles was studied using UV/Vis microspectroscopy and confocal fluorescence microscopy, with n-hexane cracking as a model reaction. Bulk information was obtained with thermogravimetric analysis (TGA) and elemental analysis. To study the effect of metal poisons, four different catalyst particles were used: fresh particles and three kinds of deactivated particles, of which two had been treated with metal poisons (Ni, V). The microscopic measurements were performed using a specially designed quartz cell, which enabled studying individual FCC particles during hexane cracking. UV/Vis absorbance was found to be linearly related to the concentration of coke in the catalyst particles determined with TGA. The coke concentration was approximately 3 times higher for the particles deactivated with metal compounds than for the fresh particles after 2 hours of cracking. The UV/Vis data were fitted with a simplified kinetic model, which was able to explain the observed differences in UV/Vis absorbance between the different particles based on their deactivation treatments. Confocal fluorescence microscopy revealed the location of coke molecules within individual FCC particles.
dc.description.sponsorshipUtrecht University
dc.language.isoen
dc.titleSpectroscopic studies on the formation of coke on individual Fluid Catalytic Cracking particles: the effect of poisoning metal compounds
dc.type.contentMaster Thesis
dc.rights.accessrightsOpen Access
dc.subject.keywordsFluid Catalytic Cracking, FCC, hexane, coke, coke formation, confocal fluorescence microscopy, catalysis
dc.subject.courseuuNanomaterials: Chemistry and Physics


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