REMOVING CONTAMINANTS FROM NATURAL GAS

摘要

A PROCESS FOR REMOVING CONTAMINANTS FROM A NATURAL GAS FEED STREAM INCLUDING WATER AND SOUR SPECIES, WHICH PROCESS COMPRISES THE STEPS OF COOLING THE NATURAL GAS FEED STREAM IN A FIRST VESSEL (12) TO A FIRST OPERATING TEMPERATURE AT WHICH HYDRATES ARE FORMED AND REMOVING FROM THE FIRST VESSEL (12) A STREAM OF DEHYDRATED GAS (34); AND COOLING THE DEHYDRATED GAS IN A SECOND VESSEL (14) TO A SECOND OPERATING TEMPERATURE AT WHICH SOLIDS OF THE SOUR SPECIES ARE FORMED OR AT WHICH THE SOUR SPECIES DISSOLVE IN A LIQUID AND REMOVING FROM THE SECOND VESSEL (14) A STREAM OF DEHYDRATED SWEETENED GAS (62).