Laboratory inhibition effect of QIL on supramolecular formation of methane-water clathrate

سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 375

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شناسه ملی سند علمی:

IICC21_143

تاریخ نمایه سازی: 5 آذر 1398

چکیده مقاله:

Gas hydrates or clathrates are crystalline non-stoichiometric structures consisting of gas and water. As a well-established examples of supramolecular chemistry, methane-water clathrate formation is a major failure in the oil and gas industry, due to hydrate formation in subsea infrastructure carrying natural gas. Practically, ionic liquids (ILs) are capable to act as thermodynamic inhibitor, whereas they can also delay the hydrate formation by slowing down the hydrate nucleation rate [1]. Although the literature data for imidazolium ILs- methane gas hydrates systems are available; however, fewer studies deal with quaternary ammonium based ionic liquid (QIL) [2].In the present work, a comparative study of the effect of mono (TMAC, TPOH, and TPAB) and diammonium salts (TMPAEDA and TMDPEA) on inhabitation of watermethane hydrate formation is undertaken. Accurate reactor tests indicated a significant 1- 2 K temperature drop for these QIL. According to the obtained experimental pressuretime curves in Fig. 1, the more hydrate-formation time, the more inhabitation effect of the QIL sample.

نویسندگان

Bahram Ghanbari

Chemistry Department, Sharif University of Technology, Tehran, Iran

Fatemeh Najafi Barzegar

Chemistry Department, Sharif University of Technology, Tehran, Iran