Modification of the Natural Gas Dehydration Unit to Reduce BTEX Emission
Publish place: Third Persian Gulf Oil, Gas and Petrochemical Conference
Publish Year: 1399
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
OGPC03_062
تاریخ نمایه سازی: 12 آبان 1400
Abstract:
Emission of benzene, toluene, ethylbenzene, and xylene (BTEX) compounds from natural gas industries is considered as an important environmental concern. These compounds are absorbed by solvent (usually glycol) in the dehydration unit of natural gas treatment and then release into the atmosphere during the solvent regeneration step. In current study, emission of benzene, toluene, ethylbenzene and xylene from a natural gas refinery is investigated both qualitatively and quantitatively and a simple practical modification of the unit is proposed for the prevention of BTEX emission. To achieve this goal, the natural gas dehydration unit is simulated using Aspen Plus and effect of operational parameters on the percent of recovery of aforementioned substances are investigated. Subsequently, by modification of the process by adding an air cooler and a separator in two sections of the process, it was observed that about ۷۷% of the BTEX recovered and emissions of BTEX can be prevented, significantly.
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Authors
Hossein Sotude Far
Department of Chemical Engineering, Hamedan University of Technology, Hamedan, Iran
Abolfazl Shojaeian
Department of Chemical Engineering, Hamedan University of Technology, Hamedan, Iran
Mohammad Saeedi Zadegan
Department of Chemical Engineering, Khajeh Nasireddin Toosi University, Tehran, Iran