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Design and Analysis of an MDEA-Based Natural Gas Purification System: Process Simulation and Economic Assessment

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Last updated: 29 Mar 2025

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Chemical Engineering

Abstract

Natural gas purification is a critical process to meet environmental standards and enhance the fuel's usability. Methyl Diethanolamine (MDEA) has proven to be an effective and economical solvent for removing acid gases such as carbon dioxide (CO₂) from natural gas streams. This study aims to design and analyze a purification system capable of treating 27905.43 Nm3/h of natural gas using an MDEA absorption-regeneration cycle. The study included process simulation in ASPEN HYSYS v11.0, design of major equipment, and a feasibility assessment of the system's economic performance. The purification system includes an absorber, regenerator, lean/rich heat exchanger, separator, and booster pump, all designed based on material and energy balances. Key results indicate that 72,628 kg/h of MDEA solution is required to achieve a CO₂ removal efficiency exceeding 98%. The absorber, utilizing 25 sieve trays, was designed to optimize solvent contact for efficient gas absorption. The lean/rich heat exchanger was optimized for energy efficiency, showing a heat transfer area of 241.28 m² in ASPEN HYSYS calculations. Additionally, economic analysis estimated a fixed capital investment of $5.7 million, with an operating cost of $8.14 million per year. The payback period for the project was determined to be 1.74 years, demonstrating strong economic feasibility. This study highlights the technical and economic viability of using MDEA-based absorption for CO₂ removal, providing insights into process optimization and cost efficiency for large-scale natural gas purification plants.

DOI

10.21608/ijisd.2025.362803.1089

Keywords

Natural gas purification, MDEA, AGR, Acid Gases, amine

Authors

First Name

Fathy

Last Name

Shokry

MiddleName

-

Affiliation

Lecturer of chemical Engineering -Faculty of Engineering - Portsaid university

Email

fathi.shokry@eng.psu.edu.eg

City

Port Said

Orcid

-

First Name

Kamal

Last Name

Sherif

MiddleName

-

Affiliation

Department of Chemical Engineering, Faculty of Engineering, Port Said University, Port Said, 42526, Egypt

Email

123@live.nl

City

-

Orcid

-

First Name

Abdelhamid

Last Name

Ismail

MiddleName

-

Affiliation

Department of Chemical Engineering, Faculty of Engineering, Port Said University, Port Said, 42526, Egypt

Email

125@live.nl

City

-

Orcid

-

First Name

Yahya

Last Name

Ezzat

MiddleName

-

Affiliation

Department of Chemical Engineering, Faculty of Engineering, Port Said University, Port Said, 42526, Egypt

Email

126@live.nl

City

-

Orcid

-

First Name

Mohamed

Last Name

Elgohary

MiddleName

-

Affiliation

Department of Chemical Engineering, Faculty of Engineering, Port Said University, Port Said, 42526, Egypt

Email

128@live.nl

City

-

Orcid

-

First Name

Abdelrahman

Last Name

Kamal

MiddleName

-

Affiliation

Department of Chemical Engineering, Faculty of Engineering, Port Said University, Port Said, 42526, Egypt

Email

130@live.nl

City

-

Orcid

-

First Name

Abdelrahman

Last Name

Elhashemy

MiddleName

-

Affiliation

Department of Chemical Engineering, Faculty of Engineering, Port Said University, Port Said, 42526, Egypt

Email

137@live.nl

City

-

Orcid

-

First Name

Mohamed

Last Name

Bassyouni

MiddleName

-

Affiliation

Department of Chemical Engineering, Faculty of Engineering, Port Said University, Egypt Department of Chemical Engineering

Email

migb2000@hotmail.com

City

Port Said

Orcid

0000-0002-8711-6019

First Name

Radwa

Last Name

Zarraa

MiddleName

M.

Affiliation

Petrochemical Engineering Department,Faculty of Engineering ,Pharos University in Alexandria ,Alexandria,Egypt.

Email

radwa.zarraa@pua.edu.eg

City

-

Orcid

-

Volume

6

Article Issue

1

Related Issue

49555

Issue Date

2025-01-01

Receive Date

2025-02-22

Publish Date

2025-01-01

Page Start

78

Page End

95

Print ISSN

2682-3993

Online ISSN

2682-4000

Article File

IJISD_Volume 6_Issue 1_Pages 78-95.pdf

PDF . 903.1kB

Link

https://ijisd.journals.ekb.eg/article_419219.html

Detail API

http://journals.ekb.eg?_action=service&article_code=419219

Order

419,219

Type

Original Article

Type Code

1,141

Publication Type

Journal

Publication Title

International Journal of Industry and Sustainable Development

Publication Link

https://ijisd.journals.ekb.eg/

MainTitle

Design and Analysis of an MDEA-Based Natural Gas Purification System: Process Simulation and Economic Assessment

Details

Type

Article

Created At

29 Mar 2025