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Natural Gas Hydrates, 3rd Edition by John Carroll

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Chapter 6

Dehydration of Natural Gas

Abstract

Water is the key to hydrate formation. Quite simply put, if there is no water then there is no hydrate. Reducing the water content of a gas stream greatly reduces the likelihood of a hydrate forming. This chapter covers the three common methods for dehydrating natural gas: absorption by a glycol (typically triethylene glycol), refrigeration, and adsorption by molecular sieves. The processes are described in some detail. Simple methods are presented for designing them. Also included are some capital cost estimations.

Keywords

Dehydration design; Glycol absorption; Molecular sieves; Refrigeration
Dehydration is the process by which water is removed from natural gas. This is a common method used for preventing ...

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