کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6633687 | 461091 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Anti-agglomeration of natural gas hydrates in liquid condensate and crude oil at constant pressure conditions
ترجمه فارسی عنوان
ضد انفجار هیدراتهای گاز طبیعی در مایعات مایع و روغن خام در شرایط فشار ثابت
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کلمات کلیدی
اطمینان جریان، هیدراتهای گاز طبیعی، ضد آگلومرانت، گاز مایع، نفت خام،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
An effective anti-agglomerant (AA) can reduce capillary force between hydrate particles to prevent them from sticking together, therefore preventing the blockage in pipelines. In recent studies, we have reported an AA formulation which shows high effectiveness at low dosage in methane/natural gas hydrates over the entire water-cut range. All our past work, however, was conducted in a closed rocking cell system with n-octane as the hydrocarbon liquid phase. In this work, we investigate the effectiveness of an improved formulation in various systems at constant high pressure (â¼100 bar natural gas) and high cooling rate (â8 °C/h) over the water-cut range of 30-80%. Condensate liquid and crude oil are used as the hydrocarbon liquid phase. Because of the impact of the acidic gases in natural gas, a small amount of lithium hydroxide is included in the new formulation. Lithium hydroxide is more efficient than sodium hydroxide which was used in our previous studies. The dosage is reduced by â¼40% by mass. We demonstrate the effectiveness of improved AA formulation in an extensive set of measurements. The effect of salinity on the AA effectiveness is also investigated. It is found that increasing salinity can decrease the dosage of base chemical in the formulation significantly.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 180, 15 September 2016, Pages 187-193
Journal: Fuel - Volume 180, 15 September 2016, Pages 187-193
نویسندگان
Huangjing Zhao, Minwei Sun, Abbas Firoozabadi,