Modelling and simulation of adsorption process for removal of CO2 from natural gas in an offshore platform

The presence of CO2 in natural gas causes pipeline corrosion and increases operating costs during transfer from the offshore production platforms to the storage terminal. Due to space limitation and harsh operating environment, a robust and compact process such as pressure swing adsorption is prefer...

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Main Author:	Maalim, Kauthar Yussuf
Format:	Thesis
Language:	English
Published:	2019
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/85877/1/KautharYussufMaalimMSChE2018.pdf
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spelling	my-utm-ep.858772020-07-30T07:38:18Z Modelling and simulation of adsorption process for removal of CO2 from natural gas in an offshore platform 2019 Maalim, Kauthar Yussuf TP Chemical technology The presence of CO2 in natural gas causes pipeline corrosion and increases operating costs during transfer from the offshore production platforms to the storage terminal. Due to space limitation and harsh operating environment, a robust and compact process such as pressure swing adsorption is preferable. To facilitate the study of process dynamics, simulation studies based on a derived mathematical model on a MATLAB software is presented. The effect of design parameters, focusing on the column height is considered, and it is found that for a typical laboratory scaled apparatus having diameter of 0.5 m. The maximum height required to adsorb 99 % CO2 is 3 m when the feed flow rate is fixed at 2.5 m3/s. The size of adsorbent particles is also impacting separation efficiency, and the optimum particle radius is found to be 1.25x10-3 m and the bed porosity was 0.2. Sensitivity analyses on the main operating parameters are also investigated. It is found that the initial CO2 feed composition has positive relationship to the adsorption efficiency. The 0.4 mole fraction was found to have sufficient separation efficiency of 90 %. The model is also tested for representing a typical industrial operation with 120 mmscfd. In this case, for a 4 m diameter column, a column height of 20 m is required. This is achieved with a 4 bed PSA system at a flow rate of 10.05 m3/s for each, and an optimum separation of 87 % is established. Based on the results obtained in this work it can be concluded that the model is a reasonable representation of the system and can be used to obtain the necessary process insights for further process development. 2019 Thesis http://eprints.utm.my/id/eprint/85877/ http://eprints.utm.my/id/eprint/85877/1/KautharYussufMaalimMSChE2018.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:132440 masters Universiti Teknologi Malaysia, Faculty of Engineering - School of Chemical & Energy Engineering Faculty of Engineering - School of Chemical & Energy Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Maalim, Kauthar Yussuf Modelling and simulation of adsorption process for removal of CO2 from natural gas in an offshore platform
description	The presence of CO2 in natural gas causes pipeline corrosion and increases operating costs during transfer from the offshore production platforms to the storage terminal. Due to space limitation and harsh operating environment, a robust and compact process such as pressure swing adsorption is preferable. To facilitate the study of process dynamics, simulation studies based on a derived mathematical model on a MATLAB software is presented. The effect of design parameters, focusing on the column height is considered, and it is found that for a typical laboratory scaled apparatus having diameter of 0.5 m. The maximum height required to adsorb 99 % CO2 is 3 m when the feed flow rate is fixed at 2.5 m3/s. The size of adsorbent particles is also impacting separation efficiency, and the optimum particle radius is found to be 1.25x10-3 m and the bed porosity was 0.2. Sensitivity analyses on the main operating parameters are also investigated. It is found that the initial CO2 feed composition has positive relationship to the adsorption efficiency. The 0.4 mole fraction was found to have sufficient separation efficiency of 90 %. The model is also tested for representing a typical industrial operation with 120 mmscfd. In this case, for a 4 m diameter column, a column height of 20 m is required. This is achieved with a 4 bed PSA system at a flow rate of 10.05 m3/s for each, and an optimum separation of 87 % is established. Based on the results obtained in this work it can be concluded that the model is a reasonable representation of the system and can be used to obtain the necessary process insights for further process development.
format	Thesis
qualification_level	Master's degree
author	Maalim, Kauthar Yussuf
author_facet	Maalim, Kauthar Yussuf
author_sort	Maalim, Kauthar Yussuf
title	Modelling and simulation of adsorption process for removal of CO2 from natural gas in an offshore platform
title_short	Modelling and simulation of adsorption process for removal of CO2 from natural gas in an offshore platform
title_full	Modelling and simulation of adsorption process for removal of CO2 from natural gas in an offshore platform
title_fullStr	Modelling and simulation of adsorption process for removal of CO2 from natural gas in an offshore platform
title_full_unstemmed	Modelling and simulation of adsorption process for removal of CO2 from natural gas in an offshore platform
title_sort	modelling and simulation of adsorption process for removal of co2 from natural gas in an offshore platform
granting_institution	Universiti Teknologi Malaysia, Faculty of Engineering - School of Chemical & Energy Engineering
granting_department	Faculty of Engineering - School of Chemical & Energy Engineering
publishDate	2019
url	http://eprints.utm.my/id/eprint/85877/1/KautharYussufMaalimMSChE2018.pdf
_version_	1747818469430132736

Modelling and simulation of adsorption process for removal of CO2 from natural gas in an offshore platform

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