Carbon Dioside Removal from Natural Gas Stream Using Polycarbonate Membrane
This report presents a research study on application of membrane system in removal carbon dioxide from natural gas stream which represented by methane in this project. The morphology of asymmetric membrane is very important factor in orderto produce membrane with desirable properties that able to...
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my-utp-utpedia.91152013-10-22T09:36:53Z http://utpedia.utp.edu.my/9115/ Carbon Dioside Removal from Natural Gas Stream Using Polycarbonate Membrane Md Ghazali, Nik Ahmad Sabri TP Chemical technology This report presents a research study on application of membrane system in removal carbon dioxide from natural gas stream which represented by methane in this project. The morphology of asymmetric membrane is very important factor in orderto produce membrane with desirable properties that able to remove carbon dioxide from natural gas stream. The objectives of this research study are to study the effect of various preparation conditions on the morphologies of asymmetric polycarbonate (PC) membrane and its relation to CO2/CH4 separation characteristic. Dry/wet phase inversion technique was used to fabricate asymmetric PC membranes. The effect of solvent-non-solvent pair on membrane morphologies and separation characteristic were investigated. The chemical used are dichloromethane (DCM) as more volatile solvent while methanol (MeOH), ethanol (EtOH) and propanol (PrOH) were selected as non-solvents. In addition, methanol (MeOH) and tetrahydrofiiran (THF) were used as coagulant and less volatile solvent, respectively. Based on the literatures studied, the propanol and butanol-based membranes showed promising performance. Fourier Transform Infrared (FTIR) Spectroscopy is used for analyzing organic materials in order to obtain specific information about the chemical bonding and also the molecular structures of the membrane. Scanning electron microscopy (SEM) is used to observe the membrane morphologies. Gas permeation unit was used to evaluate the performance of membrane. Experimental results showed that high boiling point ofPrOHwas responsible in forming highly porous substructure with macrovoid formation in the DCMbased membranes prepared using PrOH as non-solvent. The performance of asymmetric PC membranes was evaluated by measuring CO2and CH4permeances as well as CO2/CH4 ideal selectivity. The results showed that CO2 and CH4 were strongly dependent upon membrane morphologies formed during fabrication. A highly porous membrane prepared from DCMPrOH and was found to give higher C02 and CH4permeance (C02:182 GPU; CH^Ml GPU) as compared to MeOH (COz:149 GPU; CH4:104 GPU) and EtOH (C02:165 GPU; CH4:129 GPU) membranes. In term of selectivity, the highest CO2/CH4 ideal selectivity of the fabricated asymmetric PC membrane is approximately 1.54. In conclusion, asymmetric PC membranes show promising performance and have high potential to be used for CO2/CH4 separation. Universiti Teknologi PETRONAS 2009-06 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/9115/1/2009%20-%20Removal%20Carbon%20Dioxide%20from%20Natural%20Gas%20Stream%20by%20using%20Polycarbonate%20Membrane.pdf Md Ghazali, Nik Ahmad Sabri (2009) Carbon Dioside Removal from Natural Gas Stream Using Polycarbonate Membrane. Universiti Teknologi PETRONAS. (Unpublished) |
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TP Chemical technology Md Ghazali, Nik Ahmad Sabri Carbon Dioside Removal from Natural Gas Stream Using Polycarbonate Membrane |
description |
This report presents a research study on application of membrane system in removal carbon
dioxide from natural gas stream which represented by methane in this project. The
morphology of asymmetric membrane is very important factor in orderto produce membrane
with desirable properties that able to remove carbon dioxide from natural gas stream. The
objectives of this research study are to study the effect of various preparation conditions on
the morphologies of asymmetric polycarbonate (PC) membrane and its relation to CO2/CH4
separation characteristic. Dry/wet phase inversion technique was used to fabricate
asymmetric PC membranes. The effect of solvent-non-solvent pair on membrane
morphologies and separation characteristic were investigated. The chemical used are
dichloromethane (DCM) as more volatile solvent while methanol (MeOH), ethanol (EtOH)
and propanol (PrOH) were selected as non-solvents. In addition, methanol (MeOH) and
tetrahydrofiiran (THF) were used as coagulant and less volatile solvent, respectively. Based
on the literatures studied, the propanol and butanol-based membranes showed promising
performance. Fourier Transform Infrared (FTIR) Spectroscopy is used for analyzing organic
materials in order to obtain specific information about the chemical bonding and also the
molecular structures of the membrane. Scanning electron microscopy (SEM) is used to
observe the membrane morphologies. Gas permeation unit was used to evaluate the
performance of membrane. Experimental results showed that high boiling point ofPrOHwas
responsible in forming highly porous substructure with macrovoid formation in the DCMbased
membranes prepared using PrOH as non-solvent. The performance of asymmetric PC
membranes was evaluated by measuring CO2and CH4permeances as well as CO2/CH4 ideal
selectivity. The results showed that CO2 and CH4 were strongly dependent upon membrane
morphologies formed during fabrication. A highly porous membrane prepared from DCMPrOH
and was found to give higher C02 and CH4permeance (C02:182 GPU; CH^Ml GPU)
as compared to MeOH (COz:149 GPU; CH4:104 GPU) and EtOH (C02:165 GPU; CH4:129
GPU) membranes. In term of selectivity, the highest CO2/CH4 ideal selectivity of the
fabricated asymmetric PC membrane is approximately 1.54. In conclusion, asymmetric PC membranes show promising performance and have high potential to be used for CO2/CH4
separation. |
format |
Final Year Project |
author |
Md Ghazali, Nik Ahmad Sabri |
author_facet |
Md Ghazali, Nik Ahmad Sabri |
author_sort |
Md Ghazali, Nik Ahmad Sabri |
title |
Carbon Dioside Removal from Natural Gas Stream
Using Polycarbonate Membrane |
title_short |
Carbon Dioside Removal from Natural Gas Stream
Using Polycarbonate Membrane |
title_full |
Carbon Dioside Removal from Natural Gas Stream
Using Polycarbonate Membrane |
title_fullStr |
Carbon Dioside Removal from Natural Gas Stream
Using Polycarbonate Membrane |
title_full_unstemmed |
Carbon Dioside Removal from Natural Gas Stream
Using Polycarbonate Membrane |
title_sort |
carbon dioside removal from natural gas stream
using polycarbonate membrane |
publisher |
Universiti Teknologi PETRONAS |
publishDate |
2009 |
url |
http://utpedia.utp.edu.my/9115/1/2009%20-%20Removal%20Carbon%20Dioxide%20from%20Natural%20Gas%20Stream%20by%20using%20Polycarbonate%20Membrane.pdf http://utpedia.utp.edu.my/9115/ |
_version_ |
1739831632739696640 |
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13.209306 |