Polymers of intrinsic microporosity (PIM) based membranes for gas separation
Polymers of intrinsic microporosity (PIM) based membranes for gas separation
... for gas separation .4 1.3 Technology milestones of gas separation membranes .6 1.4 New classes of membrane materials 1.5 Polymers of intrinsic microporosity (PIMs) based membranes ... POLYMERS OF INTRINSIC MICROPOROSITY (PIM)- BASED MEMBRANES FOR GAS SEPARATION YONG WAI FEN (B Eng (Chemical) (Hons.), University Putra Malaysia) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF ... Table 7.4 Comparison of gas separation performance of PIM-1/Matrimid (10:90) hollow fiber membranes before and after heat treatment .181 Table 7.5 Gas separation performance of PIM-1/Matrimid...
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Fabrication and characterization of composite membranes for gas separation
... Comparison of separation performance for hollow fiber membranes between the O2/N2 mixed gas and pure gas measurements……… … 245 Table B.3 Comparison of separation performance for hollow fiber membranes ... FABRICATION AND CHARACTERIZATION OF COMPOSITE MEMBRANES FOR GAS SEPARATION JIANG LANYING (B Sci., Wuhan University, P R China) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHYLOSPHY ... application of gas separation is the separation of noncondensible gases such as Nitrogen enrichment from air, natural gas purification, and Hydrogen recovery from nitrogen and refinery 1.2.1 Nitrogen and...
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Development of mixed matrix membranes for gas separation application
... multitude applications of gas separation membranes are listed in Table 1.2 The major applications for gas separation membranes are discussed Table 1.2: Industrial applications of gas separation membranes ... development of membrane gas separation technology [14] Figure 1.2: Milestones on the development of membrane gas separations [14] 1.2 IMPORTANCE OF GAS SEPARATIONS USING MEMBRANES Membrane gas separation ... fiber membranes between the O2/N2 mixed gas and pure gas measurements……… 245 Table B.3 Comparison of separation performance of hollow fiber membranes between the CO2/CH4 mixed gas and pure gas...
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Modification of polyimide membranes for gas separation
... MODIFICATION OF POLYIMIDE MEMBRANES FOR GAS SEPARATION XIAO YOUCHANG (B Sc, Xiamen University, China) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF CHEMICAL ... Cross-linking Modification of Polyimide Membranes Induced by Amino Terminated Dendrimers……………………………………… 170 8.1.2 Carbonization of Polyimide Membranes to Enhance the Gas Separation Performance…………………………………………………………….172 ... trade-off curve for gas permeability and selectivity The aim of this study was to investigate two different modification methods for polyimide membranes to improve their separation performance...
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Thermally rearranged polymeric membranes for gas separation
... Literature review on thermally rearranged membranes for gas separation Thermally rearranged polymer membranes were studied for gas separation since 1990s Okamoto et al [19] studied the gas permeability ... Objective 1.1 Membranes for gas separation 10 1.2 Highly permeable polymer membranes for gas separation 11 1.3 Thermally rearranged polymeric membranes 13 1.4 ... 91 Table 4.6: Pure gas permeation properties of thermally rearranged membranes 95 Table 5.1: Elemental analyses results for precursor and thermally rearranged membranes ...
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Dual layer asymmetric hollow fiber membranes for gas separation
... coextrusion dual- layer hollow fiber formation • Morphology characterization on resultant dual- layer hollow fibers • Examination of gas separation performance of resultant dual- layer hollow fibers ... delamination-free dual- layer membranes 122 5.3.2 Fabrication of 6FDA–durene–mPDA/PES dual- layer membranes for gas separation 5.3.3 126 Separation performance of 6FDA–durene–mPDA/PES dual- layer membranes ... Conclusion x Summary We have studied the fabrication of dual- layer asymmetric hollow fiber composite membranes for gas separation The dual- layer composite membranes were prepared by simultaneously extruding...
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Development of chitosan based blend hollow fiber membranes for adsorptive separation in environmental engineering and bioengineering applications
... DEVELOPMENT OF CHITOSAN- BASED BLEND HOLLOW FIBER MEMBRANES FOR ADSORPTIVE SEPARATION IN ENVIRONMENTAL ENGINEERING AND BIOENGINEERING APPLICATIONS LIU CHUNXIU (B.Sc., ... spectra of CS and Pure CA hollow fiber membranes and CS/CA blend hollow fiber membranes 0.5-26.5-OH and 1-26-OH 64 Figure 3.4 XRD diffractograms of CS and Pure CA hollow fiber membranes and ... properties and applications of the membranes in adsorption based separation in water or wastewater treatment and bioengineering Specifically, cellulose acetate was adopted as blending polymer in this...
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Báo cáo y học: " Derivation and preliminary validation of an administrative claims-based algorithm for the effectiveness of medications for rheumatoid arthritis"
... Derivation and preliminary validation of an administrative claims-based algorithm for the effectiveness of medications for rheumatoid arthritis Jeffrey R Curtis1,#, John W Baddley1,2, Shuo Yang1, ... VARA visits; all other data used for the analysis were from the administrative claims data To test the performance of the effectiveness algorithm and to see whether it was similar for non-biologic ... to thank Mike Connor and Sheryl Berryman at the Birmingham VA Medical Center for their assistance in working with the DSS data This work was supported by the Agency for Research and Quality (U18...
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Cellulose ester based membranes for osmotic processes
... overview of cellulose esters as materials for osmotic membranes will also be summarized in this chapter 1.2 Classifications of Osmotic Processes The concept of osmotic processes for water separations ... 90 3.3.3 Performance of cellulose ester membranes 94 3.3.4 Effects of DS and functional group on membranes FO performance 97 3.3.5 FO performance of CAB_M membranes at different ... CELLULOSE ESTER BASED MEMBRANES FOR OSMOTIC PROCESSES ONG RUI CHIN (B Eng.) National University of Singapore A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY...
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Development of human stem cell based model for developmental toxicity testing
... toxicity 15 2.2.2 In vivo animal studies for developmental toxicity testing 17 2.3 In vitro animal -based models for developmental toxicity testing 18 2.3.1 The MM assay 19 2.3.2 ... However, current animal -based models for developmental toxicity testing is limited by time, cost and high inter-species variability, while human pluripotent stem cell (hPSC) models are only focusing ... the developmental toxicity of various xenobiotics, including both in vivo and in vitro platforms Animal -based in vivo tests used to be the only generally accepted methods for developmental toxicity...
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Development and fabrication of thin film composite (TFC) membranes for engineered osmosis processes
... DEVELOPMENT AND FABRICATION OF THIN FILM COMPOSITE (TFC) MEMBRANES FOR ENGINEERED OSMOSIS PROCESSES HAN GANG (B.Sci.(Hons.),Dalian University of Technology, China) A THESIS SUBMITTED FOR ... Membrane Development for Engineered Osmosis Processes 32 2.4.4.1 Membranes for FO 33 2.4.4.2 Membranes for PRO 40 Reference 46 CHAPTER MEMBRANE FABRICATION FOR ENGINEERED ... ENGINEERED OSMOSIS PROCESSES 61 3.1 Design and Engineering Principles for Polymeric Membranes 61 3.1.1 Phase Inversion Induced Membranes 62 3.1.2 Thin Film Composite (TFC) Membranes...
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Polymeric based membranes for hydrogen enrichment and natural gas sweetening
... debate and the use of natural gas and hydrogen is recommended to alleviate global warming Membrane technology is a promising purification technique for hydrogen enrichment and natural gas sweetening ... technologies for hydrogen production via coal gasification [6] Natural gas and hydrogen (derived from natural gas and coal) emerge as the vital alternative fuels to lessen greenhouse gas emission and ... infrastructure for the storage and distribution of hydrogen, natural gas is often seen as a bridging fuel source towards a hydrogen -based economy The projected growth in the demand for hydrogen and natural...
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Fundamentals of hollow fiber formation for gas separation
... evaporation of low boiling solvents is the key factor for the formation of defect-free gas separation hollow fiber membranes [17, 21] 1.1.3 The effects of air-gap on hollow fiber formation Air-gap ... and Literature Review on Hollow Fiber Formation for Gas Separation ……… ……………………………….1 1.1 Formation of hollow fiber membranes by phase inversion………………………… 1.1.1 The effect of dope composition and ... FUNDAMENTALS OF HOLLOW FIBER FORMATION FOR GAS SEPARATION PENG NA (B Eng, Dalian University of Technology, P R China) A THESIS SUBMITTED FOT THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF...
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