Graduate Thesis Or Dissertation

 

Design of a Microstructured Liquid-Liquid Separator Utilizing a Capillary Pressure Gradient Public Deposited

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/rf55zb81z

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  • Continuous liquid-liquid two-phase separation is needed in microfluidic devices. Due to the small characteristic lengths of microreactors, phenomena such as mass transport via molecular diffusion occur within seconds. Typically, discrete slugs of an extract are created within microchannels for high specific interfacial area to achieve intensified mass transfer. A challenge with microfluidic liquid-liquid extraction is the inability to continuously separate two phases by buoyant forces as performed in conventional systems. On small length scales, surface tension dominates; and through the design of a flow channel with a gradient in gaps between posts, a capillary pressure gradient orthogonal to the direction of flow can be created. The design and manufacture of a microfluidic liquid-liquid separator is achieved and performance under different operational conditions are investigated. The fluid flow behavior and its effect on two-phase separation are investigated with the goal of demonstrating that discrete slugs of two immiscible liquid solvents can be continuously separated. Findings are reported and recommendations for future designs are discussed.
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  • description.provenance : Submitted by Conor Zoebelein (zoebelec@onid.orst.edu) on 2017-04-13T23:15:37ZNo. of bitstreams: 1ZoebeleinConorM2017.pdf: 8310649 bytes, checksum: af90d178c2b41fd9f407d350994d31f7 (MD5)
  • description.provenance : Approved for entry into archive by Laura Wilson(laura.wilson@oregonstate.edu) on 2017-04-21T18:46:19Z (GMT) No. of bitstreams: 1ZoebeleinConorM2017.pdf: 8310649 bytes, checksum: af90d178c2b41fd9f407d350994d31f7 (MD5)
  • description.provenance : Made available in DSpace on 2017-04-21T18:46:19Z (GMT). No. of bitstreams: 1ZoebeleinConorM2017.pdf: 8310649 bytes, checksum: af90d178c2b41fd9f407d350994d31f7 (MD5) Previous issue date: 2017-03-23
  • description.provenance : Approved for entry into archive by Julie Kurtz(julie.kurtz@oregonstate.edu) on 2017-04-21T16:09:02Z (GMT) No. of bitstreams: 1ZoebeleinConorM2017.pdf: 8310649 bytes, checksum: af90d178c2b41fd9f407d350994d31f7 (MD5)
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  • 2017-08-16 to 2019-04-21

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