Effects of phenolic resin pyrolysis conditions on carbon membrane performance for gas separation

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.

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Gas Separation and Pervaporation through Microporous Carbon Membranes Derived from Phenolic Resin

ACS Symposium Series - Advanced Materials for Membrane Separations ◽

10.1021/bk-2004-0876.ch014 ◽

2004 ◽

pp. 203-217 ◽

Cited By ~ 5

Author(s):

Hidetoshi Kita ◽

Koji Nanbu ◽

Hiroshi Maeda ◽

Ken-ichi Okamoto

Keyword(s):

Gas Separation ◽

Phenolic Resin ◽

Microporous Carbon ◽

Carbon Membranes

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Uniformity control and ultra‐micropore development of tubular carbon membrane for light gas separation

AIChE Journal ◽

10.1002/aic.16226 ◽

2020 ◽

Vol 66 (6) ◽

Author(s):

Jing‐Yi Li ◽

Po‐Yu Cheng ◽

Min‐Der Lin ◽

Ming‐Yen Wey ◽

Hui‐Hsin Tseng

Keyword(s):

Gas Separation ◽

Carbon Membrane

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Precursor Selection and Process Conditions in the Preparation of Carbon Membrane for Gas Separation: A Review

Separation and Purification Reviews ◽

10.1080/15422119.2011.555648 ◽

2011 ◽

Vol 40 (4) ◽

pp. 261-311 ◽

Cited By ~ 105

Author(s):

W. N. W. Salleh ◽

A. F. Ismail ◽

T. Matsuura ◽

M. S. Abdullah

Keyword(s):

Gas Separation ◽

Process Conditions ◽

Carbon Membrane

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Pore network connectivity effects on gas separation in a microporous carbon membrane

Chemical Engineering Science ◽

10.1016/j.ces.2003.08.021 ◽

2003 ◽

Vol 58 (23-24) ◽

pp. 5251-5256 ◽

Cited By ~ 10

Author(s):

A.M. Vieira-Linhares ◽

N.A. Seaton

Keyword(s):

Gas Separation ◽

Network Connectivity ◽

Pore Network ◽

Microporous Carbon ◽

Carbon Membrane

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Carbon membrane eyed for gas separation

Chemical & Engineering News ◽

10.1021/cen-v077n038.p011 ◽

1999 ◽

Vol 77 (38) ◽

pp. 11

Author(s):

RON DAGANI

Keyword(s):

Gas Separation ◽

Carbon Membrane

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

Journal of Applied Membrane Science & Technology ◽

10.11113/amst.v22n1.117 ◽

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).

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

Journal of Applied Membrane Science & Technology ◽

10.11113/amst.v24n1.175 ◽

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.

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