Graduate Thesis Or Dissertation
 

Design of a microstructured liquid-liquid separator utilizing a capillary pressure gradient

Public Deposited

Downloadable Content

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

Descriptions

Attribute NameValues
Creator
Abstract
  • 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.
License
Resource Type
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Committee Member
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Publisher
Peer Reviewed
Language
Replaces
Embargo date range
  • 2017-08-16 to 2019-04-21

Relationships

Parents:

This work has no parents.

In Collection:

Items

Thumbnail Title Date Uploaded Visibility Actions
file details ZoebeleinConorM2017.pdf 2017-08-16 Public Download