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Understanding the extraction capabilities of the Helix Supercritical Fluid System

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dc.contributor.advisorBuiles Toro, Santiago
dc.contributor.authorGuzmán Aristizábal, Paola Andrea
dc.coverage.spatialMedellín de: Lat: 06 15 00 N degrees minutes Lat: 6.2500 decimal degrees Long: 075 36 00 W degrees minutes Long: -75.6000 decimal degreeseng
dc.creator.emailpguzman@eafit.edu.cospa
dc.date.accessioned2018-11-13T04:24:37Z
dc.date.available2018-11-13T04:24:37Z
dc.date.issued2018
dc.description.abstractSupercritical fluids extraction is a separation technique, which has higher yields and lower extraction times than conventional extraction techniques -- Moreover, due to the general use of carbon dioxide a supercritical medium there is also a reduction in the use of toxic organic solvents -- Although there are commercial supercritical fluid extraction systems, these systems are not standardized, and each different system has its own particularities -- At Universidad EAFIT there is a new supercritical fluid equipment, a Helix model of Applied Separations, that has not been thoroughly tested for its operation -- The extraction of glycosides from stevia was used as a model for understanding the effect of different parameters, such as pressure, temperature, CO2 flow, matrix load and extraction time, on the operation the Helix system at EAFIT University -- The effect of the changes in the variables was evaluated by calculating extraction yield and by characterization of the extract -- The obtained extract was characterized by IR and HPLC to verify the extraction of glycosides -- As a result of this project an operation manual for the equipment was written -- Pressure seems to be the more influential operating parameter, both for the matrix extraction and equipment performance -- Pressure and temperature have repercussions on other process variables as preparing, extraction and cleaning time or 𝐶𝑂2 consumption -- However, all the evaluated operating parameters represent a contribution for the equipment performance and their understanding is essential for improved capability of Helix system -- A maximum yield of 1.4% was obtained -- Pressure was the most important variable on the glycosides extraction yield, while the temperature did not have a noticeable effect on the yield -- Similarly, the use of cosolvent remarkably improved the performance at same conditions of pressure and temperature -- An approximate extraction time of 120 minutes was requiredspa
dc.description.degreelevelTrabajospa
dc.description.degreenameIngeniero(a) de Procesosspa
dc.format.mimetypeapplication/pdf
dc.identifier.ddc660.042 G993
dc.identifier.instnameinstname:Universidad EAFIT
dc.identifier.reponamereponame:Repositorio Institucional Universidad EAFIT
dc.identifier.repourlrepourl:https://repository.eafit.edu.co
dc.identifier.urihttps://hdl.handle.net/10784/13132
dc.language.isospa
dc.publisherUniversidad EAFITspa
dc.publisher.departmentDepartamento de Ingeniería Procesosspa
dc.publisher.facultyEscuela de Ingenieríaspa
dc.publisher.placeMedellínspa
dc.publisher.programIngeniería de Procesosspa
dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.rights.coarhttp://purl.org/coar/access_right/c_abf2
dc.rights.localAcceso abiertospa
dc.subjectFluidos supercríticosspa
dc.subjectSistema Helixspa
dc.subject.keywordChemistry, Technicalspa
dc.subject.keywordSteviaspa
dc.subject.keywordSeparation (technology)spa
dc.subject.lembTECNOLOGÍA QUÍMICAspa
dc.subject.lembGLUCÓSIDOSspa
dc.subject.lembSTEVIAspa
dc.subject.lembSEPARACIÓN (TECNOLOGÍA)spa
dc.titleUnderstanding the extraction capabilities of the Helix Supercritical Fluid System
dc.typeinfo:eu-repo/semantics/bachelorThesis
dc.type.coarhttp://purl.org/coar/resource_type/c_7a1f
dc.type.coarversionhttp://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.localTrabajo de gradospa
dc.type.redcolhttp://purl.org/redcol/resource_type/TP
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
dspace.entity.typePublication

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