• Login
    View Item 
    •   Home
    • Research
    • Articles
    • View Item
    •   Home
    • Research
    • Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguideTheses and Dissertations LibguideSubmit an Item

    Statistics

    Display statistics

    Enhanced propylene/propane separation by thermal annealing of an intrinsically microporous Hydroxyl-functionalized polyimide membrane

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    1-s2.0-S0376738815301101-main.pdf
    Size:
    1.108Mb
    Format:
    PDF
    Description:
    Accepted Manuscript
    Download
    Thumbnail
    Name:
    1-s2.0-S0376738815301101-fx1.jpg
    Size:
    29.13Kb
    Format:
    JPEG image
    Description:
    Graphical abstract
    Image viewer
    Download
    Type
    Article
    Authors
    Swaidan, Ramy J. cc
    Ma, Xiaohua
    Litwiller, Eric cc
    Pinnau, Ingo cc
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    Chemical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2015-08-06
    Online Publication Date
    2015-08-06
    Print Publication Date
    2015-12
    Permanent link to this record
    http://hdl.handle.net/10754/565818
    
    Metadata
    Show full item record
    Abstract
    Effective separation of propylene/propane is vital to the chemical industry where C3H6 is used as feedstock for a variety of important chemicals. The purity requirements are currently met with cryogenic distillation, which is an extremely energy-intensive process. Hybrid arrangements incorporating highly selective membranes (α>20) have been proposed to “debottleneck” the process and potentially improve the economics. Selective and permeable membranes can be obtained by the design of polymers of intrinsic microporosity (PIMs). In this work, a 250 °C annealed polyimide (PIM-6FDA-OH) membrane produced among the highest reported pure-gas C3H6/C3H8 selectivity of 30 for a solution-processable polymer to date. The high selectivity resulted from enhanced diffusivity selectivity due to the formation of inter-chain charge-transfer-complexes. Although there were some inevitable losses in selectivity under 50:50 mixed-gas feed conditions due to competitive sorption, relatively high selectivities were preserved due to enhanced plasticization resistance.
    Citation
    Enhanced propylene/propane separation by thermal annealing of an intrinsically microporous Hydroxyl-functionalized polyimide membrane 2015:JMS151429 Journal of Membrane Science
    Publisher
    Elsevier BV
    Journal
    Journal of Membrane Science
    DOI
    10.1016/j.memsci.2015.08.015
    Additional Links
    http://linkinghub.elsevier.com/retrieve/pii/S0376738815301101
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.memsci.2015.08.015
    Scopus Count
    Collections
    Articles; Advanced Membranes and Porous Materials Research Center; Physical Science and Engineering (PSE) Division; Chemical Engineering Program

    entitlement

     
    DSpace software copyright © 2002-2022  DuraSpace
    Quick Guide | Contact Us | KAUST University Library
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.