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Evaluating Bottom Flashing and Vapor Recompression Methods: Efficiency in CO2 Emission and Energy Reduction for Natural Gas Sweetening Process

Publish Year: 1403
Type: Conference paper
Language: English
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NCECM02_105

Index date: 27 July 2024

Evaluating Bottom Flashing and Vapor Recompression Methods: Efficiency in CO2 Emission and Energy Reduction for Natural Gas Sweetening Process abstract

Natural gas sweetening, a critical process for removing acidic compounds using amine solvents, typically involves high CO2 emissions and energy consumption due to the use of absorption and distillation columns as well as the high operational energy requirement. Recognizing the need for energy optimization, this study introduces heat integration (HI) to the conventional sweetening process, utilizing inherent process flows for energy rather than external utilities. Accordingly, heat integration of the amine recovery column via Vapor Recompression (VRC) and Bottom Flashing (BF) methods is explored. The results reveal significant reductions in CO2 emissions and energy usage: HI achieves a 25% reduction, while VRC and BF methods achieve reductions of 94% and 96%, respectively. Similarly, energy savings are 25% for HI, and an impressive 88% and 90% for VRC and BF, respectively. Notably, despite comparable compressor consumption, BF outperforms VRC with a 33% greater reduction in utility consumption, establishing BF as the superior method for environmental and energy efficiency in natural gas sweetening.

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Evaluating Bottom Flashing and Vapor Recompression Methods: Efficiency in CO2 Emission and Energy Reduction for Natural Gas Sweetening Process authors

Samira Ahmadi

Farayand Pazhouhan Omid Company, Tehran, Iran

Nargess Eyyazi-Abhari

Farayand Pazhouhan Omid Company, Tehran, Iran

Melika Esqeri

Farayand Pazhouhan Omid Company, Tehran, Iran

Sayna Rahbari

Farayand Pazhouhan Omid Company, Tehran, Iran

Fateme Ezati Kamkar

Farayand Pazhouhan Omid Company, Tehran, Iran

Hanieh Asvadi

Farayand Pazhouhan Omid Company, Tehran, Iran