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dc.contributor.advisorPinnau, Ingo
dc.contributor.authorAlhazmi, Abdulrahman
dc.date.accessioned2017-05-17T11:40:25Z
dc.date.available2018-05-09T00:00:00Z
dc.date.issued2017-05
dc.identifier.citationAlhazmi, A. (2017). Tröger’s Base Ladder Polymer for Membrane-Based Hydrocarbon Separation. KAUST Research Repository. https://doi.org/10.25781/KAUST-S360Q
dc.identifier.doi10.25781/KAUST-S360Q
dc.identifier.urihttp://hdl.handle.net/10754/623653
dc.description.abstractThe use of polymeric membranes for natural gas separation has rapidly increased during the past three decades, particularly for carbon dioxide separation from natural gas. Another valuable application is the separation of heavy hydrocarbons from methane (fuel gas conditioning), more importantly for remote area and off-shore applications. A new potential polymeric membrane that might be utilized for natural gas separations is a Tröger’s base ladder polymer (PIM-Trip-TB-2). This glassy polymeric membrane was synthesized by the polymerization reaction of 9, 10-dimethyl-2,6 (7) diaminotriptycene with dimethoxymethane. In this research, the polymer was selected due to its high surface area and highly interconnected microporous structure. Sorption isotherms of nitrogen (N2), oxygen (O¬2), methane (CH4), carbon dioxide (CO2), ethane (C2H6), propane (C3H8), and n-butane (n-C4H10) were measured at 35 °C over a range of pressures using a Hiden Intelligent Gravimetric Analyzer, IGA. The more condensable gases (C2H6, CO2, C3H8, and n-C4H10) showed high solubility due to their high affinity to the polymer matrix. The permeation coefficients were determined for various gases at 35 °C and pressure difference of 5 bar via the constant-pressure/variable-volume method. The PIM-Trip-TB-2 film exhibited high performance for several high-impact applications, such as O2/N2, H2/N2 and H2/CH4. Also, physical aging for several gases was examined by measuring the permeability coefficients at different periods of time. Moreover, a series of mixed-gas permeation tests was performed using 2 vol.% n-C4H10/98 vol.% CH4 and the results showed similar transport characteristics to other microporous polymers with pores of less than 2 nm. The work performed in this research suggested that PIM-Trip-TB-2 is suitable for the separation of: (i) higher hydrocarbons from methane and (ii) small, non-condensable gases such as O2/N2 and H2/CH4.
dc.language.isoen
dc.subjectGas Separation
dc.subjectPolymeric membrane
dc.subjectvapor/gas seperation
dc.subjectTroges base
dc.subjecttriptycene
dc.subjectGas Sorption
dc.titleTröger’s Base Ladder Polymer for Membrane-Based Hydrocarbon Separation
dc.typeThesis
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.rights.embargodate2018-05-09
thesis.degree.grantorKing Abdullah University of Science and Technology
dc.contributor.committeememberPeinemann, Klaus-Viktor
dc.contributor.committeememberHan, Yu
thesis.degree.disciplineChemical and Biological Engineering
thesis.degree.nameMaster of Science
dc.rights.accessrightsAt the time of archiving, the student author of this thesis opted to temporarily restrict access to it. The full text of this thesis became available to the public after the expiration of the embargo on 2018-05-09.
refterms.dateFOA2018-05-09T00:00:00Z


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