The utilization of micro-mesoporous carbon-based filler in the P84 hollow fibre membrane for gas separation

Abstract

This research involved carrying out a unique micro-mesoporous carbon particle incorporation into P84 co-polyimide membrane for improved gas separation performance. The carbon filler was prepared using a hard template method from zeolite and known as zeolite-templated carbon (ZTC). This research aims to study the loading amount of ZTC into P84 co-polyimide toward the gas separation performance. The ZTC was prepared using simple impregnation method of sucrose into hard template of zeolite Y. The SEM result showing a dispersed ZTC particle on the membrane surface and cross-section. The pore size distribution (PSD) of ZTC revealed that the particle consists of two characteristics of micro and mesoporous region. It was noted that with only 0.5 wt% of ZTC addition, the permeability was boosted up from 4.68 to 7.06 and from 8.95 to 13.15 barrer, for CO 2 and H 2 respectively when compared with the neat membrane. On the other hand, the optimum loading was at 1 wt%, where the membrane received thermal stability boost of 10% along with the 62.4 and 35% of selectivity boost of CO 2 /CH 4 and H 2 /CH 4 , respectively. It was noted that the position of the filler on the membrane surface was significantly affecting the gas transport mechanism of the membrane. Overall, the results demonstrated that the addition of ZTC with proper filler position is a potential candidate to be applicable in the gas separation involving CO 2 and H 2 .

Development of a P84/ZCC Composite Carbon Membrane for Gas Separation of H2/CO2 and H2/CH4

“…52 Based on our previous study, the filler composition could affect the orientation of the filler on the membrane surface. 53 A total of 1 wt % filler gives the ideal orientation of the filler position on the membrane surface. In this study, we use a 1 wt % filler composition assuming that it has similar properties.…”

Investigating Hydrocarbon Gases Permeability Through Hollow Fiber Hybrid Carbon Membrane

“…Glassy polymers are advantageous as precursors due to their low free volume and ultra-micropore structure [17]. Polysulfone membrane [18][19][20][21][22][23], and polyimide [24][25][26][27][28][29] have been investigated in the previous studies. On the other hand, carbonbased polyimide was favored in this work owing to its ability to preserve its structure after carbonization as it has a higher glass transition temperature than polysulfone [30][31][32].…”