4 research outputs found
Interfacial Adhesion Forces of Hydrate Particles in the Presence of Hydrate Inhibitors
Hydrate inhibitors are traditionally utilized to prevent
hydrate
plugging. In this study, the adhesion forces of cyclopentane (CP)
hydrates with thermodynamic inhibitors (ethanol, urea, and NaCl) and
anti-agglomerant inhibitors [sorbitan monooleate (Span 80) and lecithin]
were measured to understand the effects of hydrate inhibitors on the
adhesion forces of hydrates. It was found that the thermodynamic inhibitors
increased the early hydrate interparticle adhesion force due to the
enhanced liquid bridge force. However, the liquid bridge acted as
a lubricant layer to prevent the irreversible agglomeration of hydrate
after long-term contact. The hydrate adhesion forces decreased by
90.5β93.0% and 76.6β92.7% with an increase in the concentration
of Span 80 and lecithin, respectively, from 0.1 to 1 wt %. Both rough
morphology and low interfacial tension contributed to the adhesion
force decrease of hydrate after the addition of anti-agglomerant inhibitors.
The results may be helpful for understanding the mechanism of influence
and quantifying the impact of hydrate inhibitors on hydrate interparticle
adhesion force
Interfacial Adhesion Forces of Hydrate Particles in the Presence of Hydrate Inhibitors
Hydrate inhibitors are traditionally utilized to prevent
hydrate
plugging. In this study, the adhesion forces of cyclopentane (CP)
hydrates with thermodynamic inhibitors (ethanol, urea, and NaCl) and
anti-agglomerant inhibitors [sorbitan monooleate (Span 80) and lecithin]
were measured to understand the effects of hydrate inhibitors on the
adhesion forces of hydrates. It was found that the thermodynamic inhibitors
increased the early hydrate interparticle adhesion force due to the
enhanced liquid bridge force. However, the liquid bridge acted as
a lubricant layer to prevent the irreversible agglomeration of hydrate
after long-term contact. The hydrate adhesion forces decreased by
90.5β93.0% and 76.6β92.7% with an increase in the concentration
of Span 80 and lecithin, respectively, from 0.1 to 1 wt %. Both rough
morphology and low interfacial tension contributed to the adhesion
force decrease of hydrate after the addition of anti-agglomerant inhibitors.
The results may be helpful for understanding the mechanism of influence
and quantifying the impact of hydrate inhibitors on hydrate interparticle
adhesion force
Interfacial Adhesion Forces of Hydrate Particles in the Presence of Hydrate Inhibitors
Hydrate inhibitors are traditionally utilized to prevent
hydrate
plugging. In this study, the adhesion forces of cyclopentane (CP)
hydrates with thermodynamic inhibitors (ethanol, urea, and NaCl) and
anti-agglomerant inhibitors [sorbitan monooleate (Span 80) and lecithin]
were measured to understand the effects of hydrate inhibitors on the
adhesion forces of hydrates. It was found that the thermodynamic inhibitors
increased the early hydrate interparticle adhesion force due to the
enhanced liquid bridge force. However, the liquid bridge acted as
a lubricant layer to prevent the irreversible agglomeration of hydrate
after long-term contact. The hydrate adhesion forces decreased by
90.5β93.0% and 76.6β92.7% with an increase in the concentration
of Span 80 and lecithin, respectively, from 0.1 to 1 wt %. Both rough
morphology and low interfacial tension contributed to the adhesion
force decrease of hydrate after the addition of anti-agglomerant inhibitors.
The results may be helpful for understanding the mechanism of influence
and quantifying the impact of hydrate inhibitors on hydrate interparticle
adhesion force
Distribution of water phase on monitoring line <i>L</i><sub>MA</sub> under different flow rate conditions.
Distribution of water phase on monitoring line LMA under different flow rate conditions.</p