Understanding the extraction capabilities of the Helix Supercritical Fluid System

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dc.contributor.advisorBuiles Toro, Santiagospa
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.degreeIngeniero de Procesosspa
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.identifier.ddc660.042 G993
dc.identifier.urihttp://hdl.handle.net/10784/13132
dc.language.isospaspa
dc.publisherUniversidad EAFITspa
dc.publisher.departmentEscuela de Ingeniería. Departamento de Ingeniería Procesosspa
dc.publisher.programIngeniería de Procesosspa
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
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 Systemspa
dc.typebachelorThesiseng
dc.typeinfo:eu-repo/semantics/bachelorThesis
dc.type.hasVersionacceptedVersioneng
dc.type.localTrabajo de gradospa

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