Disk supported carbon membrane derived from based polymer polyimide for carbon dioxide related separation

Carbon membrane is known as a promising alternative for gas separation and has commonly been used for carbon dioxide (CO2) separation. However, the challenge for the carbon membrane to be practically used is the difficulty of getting a good mechanical strength and defect-free membrane. In this study...

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Main Author:	Ismail, Nor Hafiza
Format:	Thesis
Language:	English
Published:	2017
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/78349/1/NorHafizaIsmailMFChE2017.pdf
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spelling	my-utm-ep.783492018-08-26T04:53:24Z Disk supported carbon membrane derived from based polymer polyimide for carbon dioxide related separation 2017-07 Ismail, Nor Hafiza TP Chemical technology Carbon membrane is known as a promising alternative for gas separation and has commonly been used for carbon dioxide (CO2) separation. However, the challenge for the carbon membrane to be practically used is the difficulty of getting a good mechanical strength and defect-free membrane. In this study, a 4,4’- benzophenone tetracarboxylic dianhydride and 80% methyl phenylene- diamine plus 20% methylene diamine known as P84 were selected as the polymeric precursors and porous alumina disk as the supporting material. P84 has a superior gas separation performance, while the supporting material enhanced the mechanical strength of the carbon membrane. The preparation of the carbon membranes involved two main steps, which were polymeric membrane preparation and carbonization process. The polymeric membrane was prepared by a spray coating technique to obtain thin and defect-free carbon membrane layer. The carbon membrane was prepared at 600 to 900 °C under nitrogen (N2) gas flow of 200 mL/min and heating rate of 3 °C/min. The alumina powder was utilized as an intermediate layer to decrease the penetration of the polymer solution within the porous alumina supporting material. The optimum composition of polymer precursor was studied to determine the best polymer formulation for disk-supported carbon membrane. During the carbonization process, the effect of carbonization temperature was investigated. The properties of the fabricated carbon membrane were characterized and analyzed in terms of their morphological structure and thermal properties. Pure gas permeation tests using pure gases (CO2, N2 and methane (CH4)) were conducted at a room temperature and 4 bars. The CO2/N2 and CO2/CH4 selectivity of 24.54 and 65.43, respectively, were obtained for carbon membrane prepared with 12 wt% of the P84 by utilizing alumina powder as intermediate layer and after it was carbonized at 800 °C. As a conclusion, the disk supported carbon membrane was successfully fabricated and able to facilitate the development of gas purification technology. 2017-07 Thesis http://eprints.utm.my/id/eprint/78349/ http://eprints.utm.my/id/eprint/78349/1/NorHafizaIsmailMFChE2017.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:105144 masters Universiti Teknologi Malaysia, Faculty of Chemical Engineering Faculty of Chemical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Ismail, Nor Hafiza Disk supported carbon membrane derived from based polymer polyimide for carbon dioxide related separation
description	Carbon membrane is known as a promising alternative for gas separation and has commonly been used for carbon dioxide (CO2) separation. However, the challenge for the carbon membrane to be practically used is the difficulty of getting a good mechanical strength and defect-free membrane. In this study, a 4,4’- benzophenone tetracarboxylic dianhydride and 80% methyl phenylene- diamine plus 20% methylene diamine known as P84 were selected as the polymeric precursors and porous alumina disk as the supporting material. P84 has a superior gas separation performance, while the supporting material enhanced the mechanical strength of the carbon membrane. The preparation of the carbon membranes involved two main steps, which were polymeric membrane preparation and carbonization process. The polymeric membrane was prepared by a spray coating technique to obtain thin and defect-free carbon membrane layer. The carbon membrane was prepared at 600 to 900 °C under nitrogen (N2) gas flow of 200 mL/min and heating rate of 3 °C/min. The alumina powder was utilized as an intermediate layer to decrease the penetration of the polymer solution within the porous alumina supporting material. The optimum composition of polymer precursor was studied to determine the best polymer formulation for disk-supported carbon membrane. During the carbonization process, the effect of carbonization temperature was investigated. The properties of the fabricated carbon membrane were characterized and analyzed in terms of their morphological structure and thermal properties. Pure gas permeation tests using pure gases (CO2, N2 and methane (CH4)) were conducted at a room temperature and 4 bars. The CO2/N2 and CO2/CH4 selectivity of 24.54 and 65.43, respectively, were obtained for carbon membrane prepared with 12 wt% of the P84 by utilizing alumina powder as intermediate layer and after it was carbonized at 800 °C. As a conclusion, the disk supported carbon membrane was successfully fabricated and able to facilitate the development of gas purification technology.
format	Thesis
qualification_level	Master's degree
author	Ismail, Nor Hafiza
author_facet	Ismail, Nor Hafiza
author_sort	Ismail, Nor Hafiza
title	Disk supported carbon membrane derived from based polymer polyimide for carbon dioxide related separation
title_short	Disk supported carbon membrane derived from based polymer polyimide for carbon dioxide related separation
title_full	Disk supported carbon membrane derived from based polymer polyimide for carbon dioxide related separation
title_fullStr	Disk supported carbon membrane derived from based polymer polyimide for carbon dioxide related separation
title_full_unstemmed	Disk supported carbon membrane derived from based polymer polyimide for carbon dioxide related separation
title_sort	disk supported carbon membrane derived from based polymer polyimide for carbon dioxide related separation
granting_institution	Universiti Teknologi Malaysia, Faculty of Chemical Engineering
granting_department	Faculty of Chemical Engineering
publishDate	2017
url	http://eprints.utm.my/id/eprint/78349/1/NorHafizaIsmailMFChE2017.pdf
_version_	1747817967533424640

Disk supported carbon membrane derived from based polymer polyimide for carbon dioxide related separation

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