Dry natural gas liquefying method for transporting liquefied gas via seaway, involves bringing cooled gas phase into contact with adsorbent solid to obtain purified gas phase, and cooling and liquefying purified gas phase by heat exchange

摘要

The method involves bringing dry natural gas into contact with a solvent-enriched aqueous solution through a conduit (3) to obtain a solvent-enriched gas phase and a solvent-depleted aqueous phase. The solvent-enriched gas phase is cooled and condensed partially by heat exchange to produce a cooled gas phase and condensates. The cooled gas phase is separated from the condensates and brought into contact with an adsorbent solid to obtain a purified gas phase, where the solid adsorbs water, solvent and/or heavy hydrocarbons. The purified gas phase is cooled and liquefied by heat exchange.