Development of supervised machine learning model for prediction of TEG regeneration performance in natural gas dehydration

Moghaddam, Amin Hedayati; Sadeq, Abdellatif Mohammad

doi:10.1007/s11696-023-03113-7

Cited by 2 publications

(1 citation statement)

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“…Teir study highlighted the importance of controlling BTEX emissions in natural gas dehydration units due to their harmful efects on human health, but could not integrate the two objectives simultaneously. Hedayati Moghaddam [33] and Moghaddam et al [34] investigated the performance of the wet natural gas dehydration process by absorption using liquid desiccant. Tazang et al [35] presented an approach to accurately model the solubilities of BTEX in triethylene glycol (TEG).…”

Section: Introductionmentioning

confidence: 99%

Analysis Study of Available Alternatives for Mitigation of Aromatic Hydrocarbon Emissions from a Glycol Dehydration Unit

Shoaib,

Ahmed,

Gadallah

et al. 2024

International Journal of Chemical Engineering

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A natural gas (NG) dehydration unit based on glycol absorption is considered one of the most important gas processing units, aiming to decrease water content and consequently adjust its dew point. However, during this process, not only water is absorbed by the glycol solvent, but also some aromatic compounds, including benzene, toluene, ethylbenzene, and xylene (BTEX), in addition to volatile organic compounds (VOC), are absorbed. These compounds are released during glycol regeneration into the atmosphere, resulting in environmental pollution and consequent catastrophic mental and physical health problems. This study aims to minimize BTEX emissions while ensuring efficient dew point control. Various strategies have been adopted to control BTEX emissions, but the present work focuses on optimizing operating conditions and investigating the influence of operational variables on BTEX emissions, as well as NG water content. LINGO optimization software and HYSYS (version 11) are used to find the plant’s optimum conditions for minimizing BTEX emissions and satisfying efficient dew point control. Simulation results show that stripping gas, triethylene glycol (TEG) circulation rate, and inlet feed gas temperature significantly affect BTEX emissions. The proposed optimum operating conditions in this work resulted in a reduction in BTEX emissions by about 81% while satisfying the required NG dew point. Furthermore, two quadratic equations are developed based on regression analysis for efficient calculation of the BTEX emissions and water dew point at any operational variables.

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Section: Introductionmentioning

confidence: 99%