Preparation and Characterization of Matrimid-Based Carbon Membrane Supported on Tube for CO2 Separation

2014 ◽  
Vol 1025-1026 ◽  
pp. 770-775 ◽  
Author(s):  
W.N.W. Salleh ◽  
N.A.I.M. Isa ◽  
Norazlianie Sazali ◽  
Ahmad Fauzi Ismail
Keyword(s):  
Morphological Structure ◽  
Dip Coating ◽  
Gas Permeation ◽  
Carbonization Temperature ◽  
Separation Performance ◽  
Carbon Membrane ◽  
Carbon Membranes ◽  
Dip Coating Technique ◽  
Gas Separation Performance

A series of research had been conducted to alter the performance of carbon membranes by manipulating the parameters during the fabrication process. In this study, the effects of carbonization temperature on the performance of carbon membrane were investigated. Matrimid-based carbon membrane supported on ceramic tube was fabricated through the dip-coating technique. The prepared membranes were characterized by using the scanning electron microscopy (SEM) and pure gas permeation test for the study on morphological structure and gas separation performance, respectively. The carbonization process was performed at different carbonization temperatures (600, 700, and 800 oC) for the same heating rate of 1 oC/min under Ar flow. The increment of carbonization temperature produced carbon membrane with small size of pores. The carbon membrane prepared at 800 oC showed the highest CO2/CH4 and CO2/N2 selectivity of 79.65 and 74.76, respectively.

scholarly journals P84 Co-polyimide/Nanocrystalline Cellulose (NCC)-based Tubular Carbon Membrane: Effect of Drying Times for Carbon Dioxide Separation at Elevated Carbonization Temperature

2018 ◽  
Vol 22 (1) ◽  
Author(s):  
N. Sazali ◽  
W. N. W. Salleh ◽  
K. Kadirgama
Keyword(s):  
Carbon Dioxide ◽  
Dip Coating ◽  
Gas Permeation ◽  
Carbonization Temperature ◽  
Nanocrystalline Cellulose ◽  
Carbon Membrane ◽  
Drying Time ◽  
Carbon Dioxide Separation ◽  
Membrane Performance ◽  
Dip Coating Technique

In this study, the effect of drying time on the performance of tubular carbon membrane was investigated. P84 co-polyimide blends with Nanocrystalline cellulose (NCC)-based carbon membrane supported on ceramic tube was fabricated through the dip-coating technique. This study aims to investigate the effect of various drying times (12 hours, 24 hours, 3 days and 7 days) on the carbon dioxide separation properties. The gas permeation test of the resultant tubular carbon membrane was determined by using pure gas of CO2 and N2. In order to enhance the membrane performance, final carbonization temperature was executed at 800oC in Argon environment with flow rate of 200 mL/min. From the results, it was found that the best drying times was within 24 hours and such membrane showed the highest CO2/N2 selectivity (66.32±2.18).

Effect of Polymer Concentration on Matrimid 5218 based-Carbon Membrane for H2 Separation

2020 ◽  
Vol 24 (1) ◽  
Author(s):  
Mohd Syafiq Sharip ◽  
Norazlianie Sazali ◽  
Fatin Nurwahdah Ahmad
Keyword(s):  
Polymer Solution ◽  
Gas Separation ◽  
Polymer Concentration ◽  
Dip Coating ◽  
Gas Permeation ◽  
Carbon Membrane ◽  
Structural Morphology ◽  
Tubular Membrane ◽  
Carbon Membranes ◽  
Coating Method

Hydrogen (H2)-based economy development is expected to create extensive need for efficient collecting strategies of fairly high purity H2. The aim of a H2-selective membrane is to manipulate H2’s high diffusivity characteristics as well as to restrict the outcome of lower solubility. Carbon membranes offer high potential in gas separation industry due to its highly permeable and selective. Therefore, this study aims to investigate the effect of carbonization parameter, i.e., polymer concentration on the gas separation properties. Matrimid 5218 was used as a precursor for carbon tubular membrane preparation to produce high quality of carbon membrane via carbonization process. The polymer solution was coated on the surface of tubular ceramic tubes using dip-coating method. Matrimid 5218-based carbon tubular membranes were fabricated and characterized in terms of its structural morphology, chemical structure, thermal stability, and gas permeation properties by using scanning electron microscopy (SEM), Fourier transform infrared (FTIR), and pure gas permeation system, respectively. The polymer solution containing 15 wt% Matrimid 5218 shows the best formulation for the preparation of Matrimid 5218-based carbon tubular membrane. The highest H2/N2 selectivity of 401.08±2.56 was obtained for carbon membrane carbonized at 800oC with heating rate of 2oC/min.

scholarly journals Effect of Stabilization Conditions on the Fabrication of Carbon Membranes for CO2 Separation

2017 ◽  
Vol 16 (1) ◽  
Author(s):  
W. N. W. Salleh ◽  
A. F. Ismail ◽  
M. A. Rahman
Keyword(s):  
Morphological Structure ◽  
Gas Permeation ◽  
Separation Performance ◽  
Separation Processes ◽  
Carbon Membranes ◽  
Air Atmosphere ◽  
N2 Atmosphere ◽  
Stabilization Condition ◽  
Molecular Sieving ◽  
Permeation Properties

Preparation of carbon membranes has rapidly attracted much attention in gas separation processes because of thermal and chemical stabilities and exhibit superior separation performance. Carbon hollow fiber membranes (CHFM)s derived from polymer blend of polyetherimide (PEI) and polyvinylpyrrolidone (PVP) were extensively prepared through stabilization under air atmosphere followed by carbonization under N2 atmosphere. The effects of the stabilization temperature on the morphological structure and gas permeation properties were investigated by means of scanning electron microscopy (SEM) and single gas permeation system. Experimental results indicate that the transport mechanism of small gas molecules of N2, CO2, and CH4 is dominated by the molecular sieving effect. Based on morphological structure and gas permeation properties, an optimum stabilization condition for the preparation of CHFM derived from PEI/PVP was found at 300°C under air atmosphere. The selectivity of about 55 and 41 for CO2/CH4 and CO2/N2, respectively, were obtained.

scholarly journals P84 Co-Polyimide-based Tubular Carbon Membrane: Effect of Pyrolysis Temperature

2018 ◽  
Vol 23 (1) ◽  
Author(s):  
N. Sazali ◽  
W. N. W. Salleh ◽  
N. Arsat ◽  
Z. Harun ◽  
K. Kadirgama
Keyword(s):  
Pyrolysis Temperature ◽  
Dip Coating ◽  
Carbonization Temperature ◽  
Constant Heating Rate ◽  
Carbon Membrane ◽  
Carbonization Process ◽  
Membrane Effect ◽  
Constant Heating ◽  
Dip Coating Technique

In this study, the effect of carbonization temperature on the performance of carbon membrane was being investigated. P84 co-polyimide-based tubular carbon membrane were fabricated through the dip-coating technique. The prepared membranes were characterized by using the thermogravimetric analysis and scanning electron microscopy. CO2, N2, and CH4 pure gas were utilized in determination of the carbon membrane’s permeation attributes. In order to enhance the membrane’s performance, carbonization process was performed in Ar environment; with the flow rate of 200 ml/min. The carbonization process was done at various temperature, namely 600 oC, 700 oC, 800 oC and 900 oC in a constant heating rate of 3 oC/min. The increased in the temperature of carbonization leads to the production of small pores size carbon membrane. Carbon membrane prepared at 800 oC showed the highest CO2/CH4 and CO2/N2 selectivity of 63.2±5.2 and 61.3±1.7, respectively.

Tubular carbon membrane for Hydrogen separation: Effect of Pyrolisis condition

2020 ◽  
Vol 4 (1) ◽  
pp. 60-67
Author(s):  
Mohd Syafiq Sharip ◽  
Norazlianie Sazali
Keyword(s):  
Heating Rate ◽  
Gas Separation ◽  
Dip Coating ◽  
Gas Permeation ◽  
High Potential ◽  
Carbon Membrane ◽  
Structural Morphology ◽  
Tubular Membrane ◽  
Carbon Membranes ◽  
Coating Method

Hydrogen (H2)-based economy development is expected to create extensive need for efficient collecting strategies of fairly high purity H2. The aim of a H2-selective membrane is to manipulate H2’s high diffusivity characteristics as well as to restrict the outcome of lower solubility. Carbon membranes offer high potential in gas separation industry due to its highly permeable and selective. Therefore, this study aims to investigate the effect of pyrolisis temperature on the gas separation properties. Matrimid 5218 used as a precursor for carbon tubular membrane preparation to produce high quality of carbon membrane via pyrolisis process. The polymer solution was coated on the surface of tubular ceramic tubes by using dip-coating method. Dip-coating technique offer high potential in fabricating defect free carbon membrane. The polymer tubular membrane was then carbonized under argon atmosphere at 600, 700, and 800, and 900oC with heating rate of 2 oC/min. Matrimid 5218-based carbon tubular membranes were fabricated and characterized in terms of its structural morphology, chemical structure, thermal stability, and gas permeation properties by using scanning electron microscopy (SEM), Fourier transform infrared (FTIR), and pure gas permeation system, respectively. The highest H2/N2 selectivity of 401.08±2.56 was obtained for carbon membrane carbonized at 800oC with heating rate of 2oC/min

Gas Permeation Properties and Characterization of Polymer Based Carbon Membrane

2014 ◽  
Vol 983 ◽  
pp. 246-250
Author(s):  
Norazlianie Sazali ◽  
W.N.W. Salleh ◽  
Zawati Harun ◽  
Ahmad Fauzi Ismail
Keyword(s):  
Dip Coating ◽  
Industrial Applications ◽  
Nitrogen Atmosphere ◽  
Gas Permeation ◽  
Membrane Gas Separation ◽  
Carbon Membrane ◽  
Structural Morphology ◽  
Tubular Membrane ◽  
Carbon Membranes ◽  
Permeation Properties

Membrane gas separation is a forthcoming technology that advertised a great commercial potential in diverse industrial applications. Consequently, membrane-based natural gas processing has been among the fastest growing segments of the economic growth. The turbostratic structure of carbon membranes has been affirmed to accommodate with good separation selectivity for permanent gases. With that, the most auspicious technique acquired is by controlling the carbonization temperature during the carbon membrane fabrication. In this study, polymer-based carbon tubular membranes have been fabricated and characterized in terms of its structural morphology and gas permeation properties. Polyimide (Matrimid 5218) was used as a precursor for carbon tubular membrane preparation to produce high quality of carbon membrane via carbonization process. The polymer solution was coated on TiO2 –ZrO2 tubular tubes (Tami) by using dip-coating method. The polymer tubular membrane was then carbonized under Nitrogen atmosphere at 600, 750, and 850 ◦C. The structural morphology of the resultant carbon membranes was analyzed by means of scanning electron microscope (SEM). Pure gas permeation tests were performed using CO2 and N2 gases at 8 bars and room temperature. Based on the results, the highest CO2/ N2 selectivity of 79.53 was obtained for carbon membrane prepared at 850 oC.

Effects of Curing Method on the Gas Separation Performance of Phenolic Resin/Poly(vinyl Alcohol)-Based Carbon Membrane Materials

2011 ◽  
Vol 675-677 ◽  
pp. 1185-1188
Author(s):  
Bing Zhang ◽  
Yong Hong Wu ◽  
Tong Hua Wang ◽  
Jie Shan Qiu ◽  
Tie Jun Xu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Gas Separation ◽  
Vinyl Alcohol ◽  
Phenolic Resin ◽  
Poly Vinyl Alcohol ◽  
Separation Performance ◽  
Carbon Membrane ◽  
Carbon Membranes ◽  
Curing Methods ◽  
Gas Separation Performance

A novel cheap blended precursor phenolic resin/poly(vinyl alcohol) (PR/PVA) was developed to prepare carbon membranes. The effect of two curing methods (i.e., crosslinker and preoxidation) on the gas separation performance of their derived carbon membranes was investigated. Thermogravimetric analysis (TGA), Differential scanning calorimetry (DSC) and Fourier transform infrared (FTIR) spectroscopy were used to analyze the thermal stability of precursor and the changes in functional groups on membrane surface. The gas permeation of carbon membranes was tested for H2 and N2. The results show that PR, PR/PVA, and two PR/PVA cured samples have three thermal degradation stages. The thermal stability for original PR/PVA membrane is significantly improved via the method of preoxidation or crosslinker. Similar crosslinking structure is formed by the two curing methods. However, carbon membranes from crosslinker method present two-fold higher in hydrogen permeability and four-fold higher in selectivity than that from preoxidation method.

Gas Permeation Study of Carbon Tubular Membrane by Manipulating Carbonization Temperature Profile

2015 ◽  
Vol 1112 ◽  
pp. 145-148 ◽  
Author(s):  
W.N.W. Salleh ◽  
Norazlianie Sazali ◽  
H. Hasbullah ◽  
Norhaniza Yusof ◽  
Juhana Jaafar ◽  
...  
Keyword(s):  
High Performance ◽  
Large Scale ◽  
Membrane Separation ◽  
Nitrogen Atmosphere ◽  
Gas Permeation ◽  
Polymer Membrane ◽  
Carbonization Temperature ◽  
Separation Performance ◽  
Carbon Membrane ◽  
Tubular Membrane

Membrane-based separation technology has been widely applied for large-scale industrial CO2 capture due to its lower energy consumption and low pollutant production compared with other conventional techniques. The desirable properties in high performance gas separation membranes involve steps that must carefully be designed and controlled. This study investigates the role of carbonization temperature in the fabrication and performance analysis of carbon membranes prepared from polyimide. A commercial polyimide, Matrimid® 5218, was coated on the surface of ceramic tube to produce supported polymer membrane. The prepared polymer membrane was then carbonized under nitrogen atmosphere to produce supported carbon membrane for CO2/CH4 separation. The resulting carbon tubular membrane separation performance was evaluated using pure gas permeation test. Results showed that the suitable carbonization temperature for Matrimid-based carbon tubular membrane was at 850 °C. The highest selectivity for CO2/CH4 of 82.47 was obtained from carbon tubular membrane prepared at 850 °C.

scholarly journals The performance of CO2/N2 separation on P84/NCC-based tubular carbon membrane under different carbonization conditions

2019 ◽  
Vol 15 (3) ◽  
pp. 447-450 ◽  
Author(s):  
Norazlianie Sazali ◽  
Mohd Syafiq Sharip ◽  
Haziqatulhanis Ibrahim ◽  
Wan Norharyati Wan Salleh ◽  
Nur Izwanne Mahyon ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Weight Loss ◽  
Heating Rate ◽  
Flow Rate ◽  
Dip Coating ◽  
Carbonization Temperature ◽  
Carbon Membrane ◽  
Treatment Processes ◽  
Dip Coating Technique ◽  
Permeation Properties

In this study, the influence of carbonization environment on the performance of Tubular Carbon Membrane (TCMs) was explored. P84 co-polyimide/Nanocrystalline cellulose-based TCMs were synthesized by dip-coating technique. The permeation properties of TCMs were determined by employing pure gas of CO2 and N2. Heat treatment processes were carried out under different environment (Argon, Nitrogen, and Helium) with the flow rate of 200 ml/min to boost the membrane’s performance. The carbonization process was performed at a consistent carbonization temperature of 800oC under heating rate of 3oC/min. Carbonization under Argon environment was found to be the best condition for PI/NCC-based TCMs preparation with the permeance of 3.22±3.21and 213.56±2.17 GPU for N2, and CO2 gases, respectively. This membrane exhibited the uppermost CO2/N2 selectivity of 66.32±2.18. TCMs prepared under Ar environment experienced less weight loss while exhibiting highest CO2/N2 selectivity as compared to those prepared under He and N2 environment.

scholarly journals A Comparison of Carbon Molecular Sieve (CMS) Membranes with Polymer Blend CMS Membranes for Gas Permeation Applications

2012 ◽  
Vol 12 (1) ◽  
pp. 51 ◽  
Author(s):  
W.Z. Wan Nurul Huda ◽  
M.A. Ahmad
Keyword(s):  
Molecular Sieve ◽  
Dip Coating ◽  
Gas Permeation ◽  
Gravimetric Analysis ◽  
Carbon Membrane ◽  
Carbon Molecular Sieve ◽  
Coating Solution ◽  
Poly Ethylene ◽  
Dip Coating Technique ◽  
Thermal Stability Of

In this work, polyetherimide (PEI) was used as a main precursor to prepare carbon molecular sieve (CMS) membranes coated on a porous α-alumina disk via inert pyrolysis process. The PEI precursor was modified by blending with poly(ethylene glycol) (PEG) and its effect on the gas transport property of carbon membrane pyrolyzed at 873K was examined. The coating solution was prepared by PEI diluted in N-methylpyrrolidone (NMP) and coated onto support by dip-coating technique. Uniform CMS membranes were obtained by repeated dip-coating and pyrolysis of PEI and PEI/PEG. The structure and the single gas permeation properties of PEI and PEI/PEG CMS membrane were investigated.The thermal stability of CMS membranes prepared was determined by thermal gravimetric analysis (TGA). Elemental analysis, scanning electron microscopy (SEM), and Attenuated Total Reflectance Infrared (ATR-IR) Spectroscopy were employed to characterize the resulting membranes. The gas permeation of the CMS membranes was tested using three gases: methane, carbon dioxide, and oxygen and performed at 298K. The best performance was obtained by using PEI/PEG CMS membrane, whereby CO2 permeability should be 400.44x10-10 mol.m-2.s-1.Pa-1.

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