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Simulated Design for the Removal & Recycling of Acid Gases from Natural Gas

  • Type:Project
  • Pages:53
  • Format:Microsoft Word
(Petroleum Engineering Project Topics & Materials)

Natural gas is one of the major sources of fuel and raw material to industries all over the world. However, it contains some acid gases such as CO2 and H2S which are corrosive and harmful to the environment. These acid gases must be brought to permissible limits to promote safety in the operation and increase the heating value of the natural gas. In this project, we design an acid gas removal plant based on the amine treatment process using ASPEN HYSYS software.   

      In our proposed design, a counter-current flow occurs between the rising sour gas and the descending methyldiethanolamine (MDEA), thereby, absorbing the acid gases. MDEA is recycled back to the absorber column, while the acid gases are separated into their respective components of CO2 and HS respectively. CO2 can be used for enhanced oil recovery while HS can be used in petrochemical processes such as production of rubber, sulfuric acids and medicines.

          The use of activated MDEA for the acid gases absorption, which encapsulates a combination of two different amines, say MDEA and DEA, is recommended for future developments of this project. The total utilities and installed cost for our proposed natural gas sweetening plants are $1,315,710 and $1,671,800 respectively.


Table of Contents

Abstract iii

Acknowledgements iv

List of Tables v

List of Figures

1.     Introduction. 1

1.1.     Scope and Limitation(s) 2

2.     Motivation/Objective of the Study. 4

3.     Literature Review.. 4

4.     Methodology. 7

5.     Process Description. 8

5.1.     Qualitative Description of Process Equipment 11

5.1.1. Two-Phase Separator (V-100) 11

5.1.2. Absorber Column (MDEA Contactor, T-100) 12

5.1.3. Valve (VLV-100) 14

5.1.4. Flash Tank (V-101) 14

5.1.5. Heat Exchanger (E-100) 15

5.1.6. Mixer (MIX-100) 16

5.1.7. Cooler (E-101)

5.1.8. Pump (P-100) 16

5.2. Acid Gas Removal 17

5.2.1. Reflux-Reboiler Tower 17

5.2.2. Cooler (E-102) 18

5.2.3. Cooler (E-103) 19

5.2.4. Component Splitter (X-100) 19

6.   Equipment Specifications 20

7.   Plant Safety Analysis 22

7.1. Inventory Analysis 23

8.   Economic Analysis 29

9.   Conclusion & Recommendation(s) 31

10. References 32

Appendix A: Material Balance. 34

Appendix B: Equipment Sizing. 37

Appendix C: Material Stream Properties 40

Appendix D: Stream Compositions 41

Appendix E: Absorber Column Gradients 42

Appendix F: Regenerator Column Gradients 43

 

Simulated Design for the Removal & Recycling of Acid Gases from Natural Gas

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Details

Type Project
Department Petroleum Engineering
Project ID PEE0036
Price ₦3,000 ($9)
No of Pages 53 Pages
Format Microsoft Word

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    Details

    Type Project
    Department Petroleum Engineering
    Project ID PEE0036
    Price ₦3,000 ($9)
    No of Pages 53 Pages
    Format Microsoft Word

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