Investigating the Process of Different Structures of Gas Hydrate Formation
سال انتشار: 1394
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 606
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شناسه ملی سند علمی:
ITCC02_278
تاریخ نمایه سازی: 21 شهریور 1395
چکیده مقاله:
In natural underground reservoirs, natural gas and crude oil are in contact with water. Having strong hydrogen bonds, water molecules form lattice-like structure by creating cavities. Gas molecules (guest) having smaller molecular diameters than the diameter of the cavities are trapped into cages formed by water molecules (the host) and hydrogen bonds between them. Because of the interaction between the host and guest molecules, the created structure becomes stable. This crystal ice-like material is known as gas hydrates. Gas hydrates or hydrate crystals are frosty combination of gas and water and may initially be confused with ordinary ice or frost. Their general formula is M.nH2O, where M is hydrate formation molecule. All available models used to predict the properties of hydrate phase use the well known model of van der Waals Plateau. By the beginning of 2008, the worldwide-patented gas reserves were estimated to be 177.36 trillion cubic meters, 27.8 trillion cubic meters of which are in our country. Having 15.7% of world’s gas reserves, Iran is in the second place, following Russia (26.07). This paper examines the different structures of gas hydrate formation .
نویسندگان
Ali Esfandiari
Department of Chemical Engineering, Isfahan Branch, Payame Noor University, Isfahan, Iran
Seyed Ali Khoddami
Department of Chemical Engineering, Isfahan Branch, Payame Noor University, Isfahan, Iran
Amir Samimi
Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran
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