Study on the Performance of Cellulose Triacetate Hollow Fiber Mixed Matrix Membrane Incorporated with Amine-Functionalized NH 2 -MIL-125(Ti) for CO 2 and CH 4 Separation

Separations

article

Naveen Sunder¹  Yeong-Yin Fong¹  Mohamad Azmi Bustam¹  Woei-Jye Lau⁴ 

[1] Department of Chemical Engineering, Universiti Teknologi PETRONAS;CO 2 Research Center ,(CO2RES), R&D Building, Universiti Teknologi PETRONAS;Centre of Research in Ionic Liquids ,(CORIL), Universiti Teknologi PETRONAS;Advanced Membrane Technology Research Centre ,(AMTEC), Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia

关键词: metal-organic frameworks (MOFs);    NH2-MIL-125(Ti);    cellulose triacetate;    hollow fiber mixed matrix membranes;    CO2/CH4 separation;   

DOI  :  10.3390/separations10010041

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

The increase in the global population has caused an increment in energy demand, and therefore, energy production has to be maximized through various means including the burning of natural gas. However, the purification of natural gas has caused CO2 levels to increase. Hollow fiber membranes offer advantages over other carbon capture technologies mainly due to their large surface-to-volume ratio, smaller footprint, and higher energy efficiency. In this work, hollow fiber mixed matrix membranes (HFMMMs) were fabricated by utilizing cellulose triacetate (CTA) as the polymer and amine-functionalized metal-organic framework (NH2-MIL-125(Ti)) as the filler for CO2 and CH4 gas permeation. CTA and NH2-MIL-125(Ti) are known for exhibiting a high affinity towards CO2. In addition, the utilization of these components as membrane materials for CO2 and CH4 gas permeation is hardly found in the literature. In this work, NH2-MIL-125(Ti)/CTA HFMMMs were spun by varying the air gap ranging from 1 cm to 7 cm. The filler dispersion, crystallinity, and functional groups of the fabricated HFMMMs were examined using EDX mapping, SEM, XRD, and FTIR. From the gas permeation testing, it was found that the NH2-MIL-125(Ti)/CTA HFMMM spun at an air gap of 1 cm demonstrated a CO2/CH4 ideal gas selectivity of 6.87 and a CO2 permeability of 26.46 GPU.

【 授权许可】

CC BY