Synergy Effect Study of Poly(N-isoacrylamide) with Tetra Butyl Phosphonium Bromide on Methane Hydrate Formation

Effect of Surfactants on Methane Hydrate Formation and Dissociation APPROVED BY SUPERVISING COMMITTEE:

the effect of consciousness raising (c-r) on the reduction of translational errors: a case study

در دوره های آموزش ترجمه استادان بیشتر سعی دارند دانشجویان را با انواع متون آشنا سازند، درحالی که کمتر به خطاهای مکرر آنان در متن ترجمه شده می پردازند. اهمیت تحقیق حاضر مبنی بر ارتکاب مکرر خطاهای ترجمانی حتی بعد از گذراندن دوره های تخصصی ترجمه از سوی دانشجویان است. هدف از آن تاکید بر خطاهای رایج میان دانشجویان مترجمی و کاهش این خطاها با افزایش آگاهی و هوشیاری دانشجویان از بروز آنها است.از آنجا ک...

Effect of an Anionic Surfactant on the Methane Hydrate Formation: Induction Time and Stability

In this article, the effect of sodium dodecyl sulfate (SDS) as an anionic surfactant on the thermodynamics, formation rate, formation kinetic, critical micellar concentration (CMC) and stability of methane hydrate was studied. A CMC of SDS and water solution for methane hydrate formation conditions in a batch process was measured at 450 ppm, where CMC was determined by hydrate induction time. I...

Experimental Measurement of Methane and Ethane Mole Fractions during Gas Hydrate Formation

The super-saturation condition has to be provided to form gas hydrates. Consequently, the prediction of the guest molecule fraction in the aqueous phase is crucial in the study of the gas hydrate kinetics. In the present work, several experiments were carried out in a semi-batch reactor in order to determine the mole fraction of methane and ethane during gas hydrates formation (growth stage...

Pore-network study of methane hydrate dissociation.

A two-dimensional pore-network model based on invasion percolation is used to study the patterns obtained from the release of methane during the dissociation of methane hydrates (without including dissociation kinetics) caused by a sudden pressure reduction in the system below the hydrate equilibrium pressure. The concept of the critical gas saturation S(gc) (volume fraction of the gas phase at...