Heats of immersion of zeolites in n-alcohols

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dc.contributor.authorHervas, Manuel A.en
dc.contributor.committeechairWightman, James P.en
dc.contributor.committeememberDillard, John G.en
dc.contributor.committeememberHanson, Brian E.en
dc.contributor.departmentChemistryen
dc.date.accessioned2014-03-14T21:28:40Zen
dc.date.adate2013-02-06en
dc.date.available2014-03-14T21:28:40Zen
dc.date.issued1987-07-15en
dc.date.rdate2013-02-06en
dc.date.sdate2013-02-06en
dc.description.abstractThe heats of immersion in n-alcohols of zeolites NaY, 5A and ZSM-5 and the kinetics of the immersion process have been determined using a Calvet MS-70 microcalorimeter. The specific heat of immersion decreased non-linearly as a function of chain length of alcohol for NaY and 5A. In contrast, the specific heat of immersion passed through a maximum at n-pentanol for ZSM-S. The specific immersion time as a function of chain length of alcohol showed an apparent linear increase in the order 5A > ZSM-S > NaY. NaY showed almost no increase. The effects of sample evacuation temperature and butyl alcohol isomer bulk on the heats of immersion were also investigated. These results were interpreted in terms of molecular accessibility of the wetting liquid into the pores of the zeolites and in terms of the Si/Al ratio of the zeolites. The overall kinetics of immersion appears to be first order.en
dc.description.degreeMaster of Scienceen
dc.format.extentix, 86 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-02062013-040135en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-02062013-040135/en
dc.identifier.urihttp://hdl.handle.net/10919/40948en
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1987.H478.pdfen
dc.relation.isformatofOCLC# 16812945en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1987.H478en
dc.subject.lcshCalorimetryen
dc.subject.lcshHeat of solutionen
dc.subject.lcshThermal analysisen
dc.subject.lcshZeolitesen
dc.titleHeats of immersion of zeolites in n-alcoholsen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineChemistryen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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