METHOD OF DEHYDRATION OF GAS Russian patent published in 2006 - IPC B01D53/26 B01D5/00 F25J3/06 

FIELD: preparation of natural and oil gases for transportation and processing.

SUBSTANCE: proposed method includes cleaning of gas flow from mechanical impurities and dropping liquid, condensation of water and/or hydrocarbon components, separation and removal of them from gas. Components are subjected to capillary condensation from gas flow in anisotropic porous capillary structure made from wettable solid material condensed by components. Sizes of pores and capillaries of structure decrease to one side. Condensed components are removed through pores and capillaries towards decrease of their sizes. Gas flow in structure is directed towards increase of sizes of pores and capillaries. Gas flow is fed at normal to direction of motion of component being removed. Agents increasing wettability of solid material are fed to condensed components at removal. Part of removable condensed components is recirculated to side at increased sizes of pores and capillaries. Capillary condensation and removal of condensed components are performed repeatedly - at several stages. At repeated condensation, removal of condensed components is performed from previous stage to side at increased sizes of pores and capillaries of previous gas dehydration stage.

EFFECT: enhanced efficiency of dehydration; reduced losses of gas pressure.

7 cl, 13 dwg, 1 ex