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Process design analyses of co/sub 2/ capture from natural gas by polymer membrane

Abstract

Membrane-based natural gas separation has become one of the promising technologies due to its compactness, energy efficiency, environment friendliness and economic advantages. In this work, a three stage membrane process for the separation of CO/sub 2//CH/sub 4/ is proposed based on a novel fixed site carrier membrane which has the potential to meet the CO/sub 2//CH/sub 4/ separation and durability requirement. A simulation analysis, which utilizes the Aspen Hysys capabilities to calculate and couple energy balances in the process model, has been conducted to investigate the effect of process parameters on the gas processing cost. Two different natural gas mixtures containing 9.5% and 2.9% CO/sub 2/ have been simulated for various process conditions. This fixed site carrier membrane performs well when wetted with water. Therefore, natural gas feed streams are saturated with water. It is evident from the analysis that it is possible to maintain 2% CO/sub 2/ in retentate and methane loss in permeate below 2% by optimizing the process conditions. The analysis shows that fixed site carrier membrane offers a viable solution for natural gas sweetening. (author)
Authors:
Hussain, A.; Nasir, H.; Ahsan, M. [1] 
  1. National Univ. of Science and Technology, Islamabad (Pakistan). Dept. of Chemical Engineering
Publication Date:
Jun 15, 2014
Product Type:
Journal Article
Resource Relation:
Journal Name: Journal of the Chemical Society of Pakistan; Journal Volume: 36; Journal Issue: 3
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; AIR POLLUTION; CARBON DIOXIDE; FOSSIL FUELS; HYDROCARBONS; NATURAL GAS; POLYMERS; PUBLIC HEALTH
OSTI ID:
22331128
Country of Origin:
Pakistan
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0253-5106; TRN: PK1500297037357
Submitting Site:
INIS
Size:
page(s) 411-421
Announcement Date:
May 07, 2015

Citation Formats

Hussain, A., Nasir, H., and Ahsan, M. Process design analyses of co/sub 2/ capture from natural gas by polymer membrane. Pakistan: N. p., 2014. Web.
Hussain, A., Nasir, H., & Ahsan, M. Process design analyses of co/sub 2/ capture from natural gas by polymer membrane. Pakistan.
Hussain, A., Nasir, H., and Ahsan, M. 2014. "Process design analyses of co/sub 2/ capture from natural gas by polymer membrane." Pakistan.
@misc{etde_22331128,
title = {Process design analyses of co/sub 2/ capture from natural gas by polymer membrane}
author = {Hussain, A., Nasir, H., and Ahsan, M.}
abstractNote = {Membrane-based natural gas separation has become one of the promising technologies due to its compactness, energy efficiency, environment friendliness and economic advantages. In this work, a three stage membrane process for the separation of CO/sub 2//CH/sub 4/ is proposed based on a novel fixed site carrier membrane which has the potential to meet the CO/sub 2//CH/sub 4/ separation and durability requirement. A simulation analysis, which utilizes the Aspen Hysys capabilities to calculate and couple energy balances in the process model, has been conducted to investigate the effect of process parameters on the gas processing cost. Two different natural gas mixtures containing 9.5% and 2.9% CO/sub 2/ have been simulated for various process conditions. This fixed site carrier membrane performs well when wetted with water. Therefore, natural gas feed streams are saturated with water. It is evident from the analysis that it is possible to maintain 2% CO/sub 2/ in retentate and methane loss in permeate below 2% by optimizing the process conditions. The analysis shows that fixed site carrier membrane offers a viable solution for natural gas sweetening. (author)}
journal = []
issue = {3}
volume = {36}
journal type = {AC}
place = {Pakistan}
year = {2014}
month = {Jun}
}