04-04-2013 дата публикации
Номер: WO2013044732A1
Принадлежит:
A water removal and heavy-hydrocarbon removal process in liquefied natural gas production from a mixed gas rich in methane comprises the steps of: dividing a mixed gas rich in methane after acid removal treatment into two parts, wherein one part enters a drying procedure as a process gas, and the other part enters a regeneration procedure as a regeneration gas, the mixed gas rich in methane that enters the drying procedure is subjected to drying treatment, and moisture and heavy hydrocarbons C6 or higher in the gas are removed at the same time in a composite bed of an absorbent in a drying tower, and the moisture is removed to a normal-pressure dew point of lower than or equal to -76°C, the heavy hydrocarbons C6 or higher are removed to a concentration of lower than or equal to 217 ppm; after the regeneration process of the mixed gas rich in methane that enters the regeneration procedure as a regeneration gas of the regeneration process of the drying tower is completed, returning this part ...
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