Fabrication of multilayer composite hollow fiber membrane comprising NH2-MIL-125 (Ti) for CO2 removal from CH4

Zakariya, Shahidah; Yeong, Yin Fong; Jusoh, Norwahyu; Tan, Lian See

doi:10.1016/j.matpr.2021.11.025

Cited by 1 publication

(8 citation statements)

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“…The formula for preparing the dope solution is described in detail in our previous work [ 25 ]. With the dry/wet spinning process, PSf hollow fiber was spun using a spinneret with dimensions of OD/ID of 0.80 mm/0.4 mm at an air gap distance of 3.0 cm, while the take-up speed was maintained at 5.0 rpm.…”

Section: Methodsmentioning

confidence: 99%

“…Finally, the composite hollow fibers were cured at room temperature for 48 h before proceeding to gas separation testing. The membranes developed in our previous work [ 25 ] and used in this study are shown in Table 1 .…”

Section: Methodsmentioning

confidence: 99%

“…In our previous work, we investigated single gas performance of a series of composite membranes containing different compositions of NH 2 -MIL-125(Ti) in PEBAX, coated on a PSf hollow fiber support layer [ 25 ]. Enhancement of CO 2 and CH4 gas permeance was discovered for composite membranes when compared to the PSf membranes coated only with PDMS or PEBAX solutions.…”

Section: Introductionmentioning

confidence: 99%

“…Enhancement of CO 2 and CH4 gas permeance was discovered for composite membranes when compared to the PSf membranes coated only with PDMS or PEBAX solutions. Furthermore, the largest increment in CO 2 /CH 4 ideal selectivity was found for a composite membrane loaded with 10% of NH 2 -MIL-125(Ti) filler [ 25 ]. The key reasons for the improvement in CO 2 removal from CH 4 are the high porosity and strong CO 2 affinity of NH 2 -MIL-125(Ti) filler [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the largest increment in CO 2 /CH 4 ideal selectivity was found for a composite membrane loaded with 10% of NH 2 -MIL-125(Ti) filler [ 25 ]. The key reasons for the improvement in CO 2 removal from CH 4 are the high porosity and strong CO 2 affinity of NH 2 -MIL-125(Ti) filler [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

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Performance of Multilayer Composite Hollow Membrane in Separation of CO2 from CH4 in Mixed Gas Conditions

et al. 2022

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Composite membranes comprising NH2-MIL-125(Ti)/PEBAX coated on PDMS/PSf were prepared in this work, and their gas separation performance for high CO2 feed gas was investigated under various operating circumstances, such as pressure and CO2 concentration, in mixed gas conditions. The functional groups and morphology of the prepared membranes were characterized by Fourier transform infrared spectroscopy (FTIR) and field emission scanning electron microscopy (FESEM). CO2 concentration and feed gas pressure were demonstrated to have a considerable impact on the CO2 and CH4 permeance, as well as the CO2/CH4 mixed gas selectivity of the resultant membrane. As CO2 concentration was raised from 14.5 vol % to 70 vol %, a trade-off between permeance and selectivity was found, as CO2 permeance increased by 136% and CO2/CH4 selectivity reduced by 42.17%. The membrane produced in this work exhibited pressure durability up to 9 bar and adequate gas separation performance at feed gas conditions consisting of high CO2 content.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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