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Kinetic Inhibitor : ウィキペディア英語版
Kinetic Inhibitor

Kinetic Inhibitors are a new and evolving technology of a class of Low Dosage Hydrate Inhibitors (LDHI) that are polymers and copolymers (or a mix thereof). The most common of which is polyvinylcaprolactam (PVCap).〔Kelland, Malcolm et al. A New Class of Hydrate Inhibitor. 2000. http://www.iris.no/internet/student.nsf/199f312efd2a0cacc125680e00635b85/b58dcb01591e3feac125768f004f4a66/$FILE/Fagernes%20paper.pdf〕 These inhibitors are primarily utilized to retard the formation of clathrate hydrates. This problem becomes most prominent in flow lines when hydrocarbons and water flow through a line. The pressure and cold temperatures that could be exposed to the flow lines provides an environment in which clathrate hydrates can form and plug up the flow line. The inhibitors generally slow the formation of the hydrates enough so the fluid reaches storage without causing blockage.〔Sloan et al. Hydrates: State of the art Inside and Outside flow lines. SPE. 2009. http://www.spe.org/jpt/print/archives/2009/12/19DAS.pdf〕
==Structure==
There may be variations on the types and structure of the polymer used as the inhibitor. However, in general, while the gas hydrate is forming, the cavity where the hydrocarbon usually resides. Instead, the alkyl group penetrates the cavity followed by the carbonyl group of the amide group hydrogen bonding to the surface of the hydrate, thus preventing the formation of hydrates.〔

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