The Effect of Nonionic Surfactants on the Kinetics of Methane Hydrate Formation in Multiphase System

被引:1
|
作者
Foo, Khor Siak [1 ,2 ,3 ]
Nashed, Omar [4 ]
Lal, Bhajan [1 ,2 ]
Bavoh, Cornelius Borecho [1 ,2 ]
Shariff, Azmi Mohd [1 ,2 ]
Tewari, Raj Deo [5 ]
机构
[1] Univ Teknol Petronas, Chem Engn Dept, Bandar Seri Iskandar 32610, Malaysia
[2] Univ Teknol Petronas, CO2 Res Ctr, Bandar Seri Iskandar 32610, Malaysia
[3] Kuala Lumpur City Ctr, PETRONAS Twin Towers, PTTEP, Level 2630,Tower 2, Kuala Lumpur 50088, Malaysia
[4] Coll Energy Technol, Petr Engn Dept, Jikharra 218657, Libya
[5] Kawasan Inst Bangi, PETRONAS Res Sdn Bhd, Lot 3288 3289 Off Jalan Ayer Itam, Kajang 43000, Malaysia
关键词
gas hydrates; kinetic hydrate inhibitors; nonionic surfactant; induction time; CARBON-DIOXIDE; SELF-PRESERVATION; STORAGE; WATER; INHIBITION;
D O I
10.3390/colloids6030048
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Gas hydrate inhibitors have proven to be the most feasible approach to controlling hydrate formation in flow assurance operational facilities. Due to the unsatisfactory performance of the traditional inhibitors, novel effective inhibitors are needed to replace the existing ones for safe operations within constrained budgets. This work presents experimental and modeling studies on the effects of nonionic surfactants as kinetic hydrate inhibitors. The kinetic methane hydrate inhibition impact of Tween-20, Tween-40, Tween-80, Span-20, Span-40, and Span-80 solutions was tested in a 1:1 mixture of a water and oil multiphase system at a concentration of 1.0% (v/v) and 2.0% (v/v), using a high-pressure autoclave cell at 8.70 MPa and 274.15 K. The results showed that Tween-80 effectively delays the hydrate nucleation time at 2.5% (v/v) by 868.1% compared to the blank sample. Tween-80 is more effective than PVP (a commercial kinetic hydrate inhibitor) in delaying the hydrate nucleation time. The adopted models could predict the methane hydrate induction time and rate of hydrate formation in an acceptable range with an APE of less than 6%. The findings in this study are useful for safely transporting hydrocarbons in multiphase oil systems with fewer hydrate plug threats.
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页数:17
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