کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1758091 1523024 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Energy and exergical dissection of a natural gas sweetening plant using methyldiethanol amine (MDEA) solution
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علوم زمین و سیاره ای (عمومی)
پیش نمایش صفحه اول مقاله
Energy and exergical dissection of a natural gas sweetening plant using methyldiethanol amine (MDEA) solution
چکیده انگلیسی


• Using process simulator ProMax®, a model for the gas sweetening unit was developed for GASCO Habshan in UAE.
• Exergy method of analysis was used to assess the effective energy use through the process.
• The results showed that the unit with highest value of exergy destruction was absorber (3 MW).
• Chemical exergy losses are much higher than the physical exergy losses.

Demand of natural gas is increasing as it is cheaper than oil and a clean fuel. Natural gas contains impurities like water, CO2, H2S, COS, mercury & N2. Amines processes are the developed technology available today for the removal of acid gases (CO2 & H2S). N-methyldiethanolamine (MDEA) is a well-known tertiary amine and selectively used to remove mostly H2S from natural gas. Heat transfer has a huge role in many operational units of gas sweetening plant. The exergy method of analysis provides this true measure of effective energy use through its application of principles of both the first and second laws of thermodynamics. The present investigation involves development of a gas sweetening unit using process simulator ProMax®. The results showed that the unit with highest value of exergy destruction was absorber (3 MW) followed by sweet gas air cooler (2.7 MW) and flasher unit (2.2 MW). Energy and exergy efficiencies determined revealed that absorber was the most efficient process with energy and exergy efficiencies of about 94% and 98% respectively. The flasher, air coolers and pressure recovery turbine were determined to be the under performers with exergy efficiencies of 27%, 24% and 31% respectively. A further breakdown of exergy losses revealed that the chemical exergy losses are much higher than the physical exergy losses, contributing around 94% of the total exergy losses.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Natural Gas Science and Engineering - Volume 16, January 2014, Pages 1–7
نویسندگان
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