Abstract:A two-level full factorial design was used to analyze several factors involved in PSF–GO–Pebax thin film nanocomposite membranes development. Permeate flux was chosen as a single response for four possible factors: Pebax selective layer concentration, amount of GO load to Pebax selective layer, Pebax–GO selective layer thickness, and amount of GO load to PSF substrate. The study is aimed at factors interaction and contribution towards the highest permeation flux via FFD and RSM approach.
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“…The Pebax-GO-PSF membrane used in this pervaporation setup is a self-made and continuous study via OFAT [7] and combined FFD-RSM [8] techniques. The binary mixture of IPA-water used in the pervaporation cycles is an isopropyl alcohol (IPA) with 99.98 % purity that was supplied by HmbG Chemicals and our own laboratory process distilled waterthe mixture was continuously stirred for 2 hours before immediately used for separation purposes.…”
This paper reports a study on the operating condition of a pervaporation system for IPA dehydration. The two-condition study within this system is amount of water contents in binary feed mixture and operating temperature. The highest possible flux obtained from this study is at 12 wt% − 14 wt% of water in IPA and 61 ℃ – 65 ℃ operating temperature with permeate of 1.514 Kgm–2h–1 – 1.562 Kgm–2h–1. A permeate flux model for this system also been generated and validated with error margin less than 1% proving the genuine of the developed model and the ability of data prediction.
“…The Pebax-GO-PSF membrane used in this pervaporation setup is a self-made and continuous study via OFAT [7] and combined FFD-RSM [8] techniques. The binary mixture of IPA-water used in the pervaporation cycles is an isopropyl alcohol (IPA) with 99.98 % purity that was supplied by HmbG Chemicals and our own laboratory process distilled waterthe mixture was continuously stirred for 2 hours before immediately used for separation purposes.…”
This paper reports a study on the operating condition of a pervaporation system for IPA dehydration. The two-condition study within this system is amount of water contents in binary feed mixture and operating temperature. The highest possible flux obtained from this study is at 12 wt% − 14 wt% of water in IPA and 61 ℃ – 65 ℃ operating temperature with permeate of 1.514 Kgm–2h–1 – 1.562 Kgm–2h–1. A permeate flux model for this system also been generated and validated with error margin less than 1% proving the genuine of the developed model and the ability of data prediction.
“…Response surface methodology generally enables constructing an empirical model from data obtained from a few systematically designed trials. The response surface methodology combined mathematical and statistical tools and was primarily derived from numerical methods [18]. Before beginning the optimization process, the response surface methodology starts with the experiment design to figure out the important model parameters [19,20].…”
The performance optimization studies of zeolite 4A embedded polyetherimide mixed matrix membranes to separate carbon dioxide/methane by simultaneously considering the effect of process parameters on process responses were the focus of this study. Mixed matrix membranes were characterized and analyzed. The thermophysical characteristics of the synthesized membranes were assessed by different analytical equipment. The permeability of pure gases was determined at varying feed pressures (4 bar to 10 bar) to evaluate gas separation performance. Process optimization studies were accomplished by response surface methodology to find the relation of pressure and zeolite loading on carbon dioxide and methane permeability, and carbon dioxide/methane selectivity. The characterization results revealed that all membranes were dense in structure and has improved thermal stability. The spectrometry results confirmed the molecular interaction between polyetherimide and zeolite 4A filler. Gas permeability results showed a more than 90 % increase in carbon dioxide permeability compared to the nascent polyetherimide membrane. Similarly, selectivity of mixed matrix membranes was 45 % higher than polyetherimide membrane. The optimal operating conditions were found to be 20 wt. % zeolite loading and 6 bar pressure with overall desirability of 0.700. These membranes can find potential in various gas separation applications.
Metal sulfide nanoparticles (MSNs) have attracted significant attention due to their unique optical, electronic, and catalytic properties. These nanomaterials have great potential for many applications, such as solar cells, sensors,...
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