scholarly journals Fabrication of Functionalized MOFs Incorporated Mixed Matrix Hollow Fiber Membrane for Gas Separation

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Haitao Zhu ◽  
Xingming Jie ◽  
Yiming Cao
Keyword(s):  
Gas Separation ◽  
Polymer Matrix ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Metal Organic Framework ◽  
Separation Performance ◽  
Fluid Composition ◽  
Solvent Ratio ◽  
Fiber Membrane ◽  
Mixed Matrix

The metal-organic framework (MOFs) of MIL-53 was functionalized by aminosilane grafting and then incorporated into Ultem®1000 polymer matrix to fabricate mixed matrix hollow fiber membrane (MMHFM) with high separation performance. SEM, XRD, and TGA were performed to characterize the functionalized MIL-53 and prepared MMHFM. The filler particles were embedded in membrane successfully and dispersed well in the polymer matrix. The incorporation of MOFs endowed MMHFM better thermal stability. Moreover, effects of solvent ratio in spinning dope, spinning condition, and testing temperature on gas separation performance of MMHFM were investigated. By optimizing dope composition, air gap distance, and bore fluid composition, MMHFM containing functionalized MIL-53 achieved excellent gas permeance and CO2/N2selectivity. The CO2permeance increased from 12.2 GPU for pure Ultem HFM to 30.9 GPU and the ideal CO2/N2selectivity was enhanced from 25.4 to 34.7 simultaneously. Additionally, gas permeance increased but the selectivity decreased with the temperature increase, which followed the solution-diffusion based transport mechanism.

Effect of MIL-53 on phase inversion and gas separation performance of mixed matrix hollow fiber membranes

RSC Advances ◽  
2016 ◽  
Vol 6 (73) ◽  
pp. 69124-69134 ◽  
Author(s):  
Haitao Zhu ◽  
Xingming Jie ◽  
Lina Wang ◽  
Guodong Kang ◽  
Dandan Liu ◽  
...  
Keyword(s):  
Solvent Effect ◽  
Gas Separation ◽  
Hollow Fiber ◽  
Membrane Structure ◽  
Phase Inversion ◽  
Hollow Fiber Membrane ◽  
Separation Performance ◽  
Fiber Membrane ◽  
Mixed Matrix ◽  
Gas Separation Performance

The MIL-53 non-solvent effect influenced the phase inversion of spinning dope, and the MOF-containing hollow fiber membrane structure was optimized.

scholarly journals Highly Permeable Mixed Matrix Hollow Fiber Membrane as a Latent Route for Hydrogen Purification from Hydrocarbons/Carbon Dioxide

Membranes ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 865
Author(s):  
Yu-Ting Lin ◽  
Ming-Yen Wey ◽  
Hui-Hsin Tseng
Keyword(s):  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Gas Permeation ◽  
Flow Rate Ratio ◽  
Separation Performance ◽  
Hydrogen Purification ◽  
Fiber Membrane ◽  
Mixed Matrix ◽  
Alumina Particles ◽  
Separation Factors

This work reported on the fabrication and investigation of a mixed matrix hollow fiber membrane (MMHFM) by incorporating commercially available alumina particles into a polyetherimide (PEI) polymer matrix. These MMHFMs were prepared by the dry-wet spinning technique. Accordingly, optimizing the spinning parameters, including the air gap distance and flow rate ratio, is key to determining the gas separation performance. However, there are few studies regarding the effect of the filler dimensions. Consequently, three sizes of alumina particles, 20 nm, 30 nm, and 1000 nm, were respectively added into the PEI phase to examine the influence of filler size on gas permeation property. Moreover, the permeation properties of lower hydrocarbons (i.e., ethane and propane) were also measured to evaluate potential for emerging applications. The results indicated the as-synthesized membrane exhibited a remarkable hydrogen permeance of 1065.24 GPU, and relatively high separation factors of 4.53, 5.77, and 5.39 for H2/CO2, H2/C2H6, and H2/C3H8, respectively. This resulted from good compatibility between the larger fillers and the PEI polymer, as well as a reduction in the finger-like voids. Overall, the MMHFM in this work was deemed to be a promising candidate to separate hydrogen from gas streams, based on the comparison of the separation performance against other reported studies.

Mathematical Modeling of the Radial Crossflow Hollow Fiber Membrane Module for Multi-Component Gas Separation

2014 ◽  
Vol 625 ◽  
pp. 726-729 ◽  
Author(s):  
Serene Sow Mun Lock ◽  
Kok Keong Lau ◽  
Mohd Shariff Azmi
Keyword(s):  
Mathematical Model ◽  
Gas Separation ◽  
Hollow Fiber ◽  
Membrane Separation ◽  
Hollow Fiber Membrane ◽  
Membrane Module ◽  
Separation Performance ◽  
Fiber Membrane ◽  
Cell Balance ◽  
The Ideal

A “Multi-component Progressive Cell Balance” approach has been applied to characterize the gas separation of the radial crossflow hollow fiber membrane module. The mathematical model is an indispensable tool to evaluate the separation performance of membrane material towards different components. The approach is required to be implemented since there is scarcely available mathematical model to characterize the two dimensional radial crossflow. In addition, the currently available mathematical model is confined to the ideal binary system, which constraints its applicability in real membrane separation process with many components. The significance of the developed multi-component mathematical model as compared to the model adapting the ideal binary simulation condition is demonstrated in this study.

High-flux polysulfone mixed matrix hollow fiber membrane incorporating mesoporous titania nanotubes for gas separation

2017 ◽  
Vol 180 ◽  
pp. 13-22 ◽  
Author(s):  
A.K. Zulhairun ◽  
M.N. Subramaniam ◽  
A. Samavati ◽  
M.K.N. Ramli ◽  
M. Krishparao ◽  
...  
Keyword(s):  
Gas Separation ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Titania Nanotubes ◽  
Mesoporous Titania ◽  
High Flux ◽  
Fiber Membrane ◽  
Mixed Matrix
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