Method and apparatus for liquefying gases

Claim 1

A METHOD OF LIQUEFYING CHLORINE GAS CONTAINING INCONDENSABLES FROM THE GROUP CONSISTING OF AIR, CARBON DIOXIDE AND HYDROGEN AND AT APPROXIMATELY ATMOSPHERIC PRESSURE, WHICH METHOD COMPRISES STET 1, VAPORIZING LIQUID CHLORINE OBTAINED FROM STEP 4 TO PRODUCE A STREAM OF CHLORINE VAPOR UNDER PRESSURE; STEP 2, PASSING SAID STREAM OF CHLORINE VAPOR UNDER PRESSURE THROUGH AN INIECTOR COMMUNICATING WITH THE CHLORINE GAS TO BE LIQUEFIED AND WITH CHLORINE GAS COMING FROM STEP 6 AND THUS PRODUCING A STREAM OF CHLORINE GAS UNDER PRESSURE CONTAINING SAID INCONDENSABLES; STEP 3, COOLING THE STREAM FROM STEP 2 TO CONDENSE THE MAJOR PORTION BUT NOT ALL OF THE CHLORINE GAS; STEP 4, DIVIDING THE LIQUID CHLORINE FROM STEP 3 INTO THREE STREAMS, ONE OF WHICH IS EMPLOYED IN STEP 1 OF THE PROCESS; STEP 5, COOLING ANOTHER OF THE STREAMS OF LIQUID CHLORINE FROM STEP 4 CONTAINING CHLORINE GAS NOT CONDENSED IN STEP 3 AND SAID INCONDENSABLES TO EFFECT CONDENSATION TO THE RESIDUAL CHLORINE GAS, WITHDRAWING THE CHLORINE CONDENSATE THUS PRODUCED FROM THE PROCESS AS PRODUCT AND VENTING THE INCONDENSABLES FROM THE PROCESS; AND STEP 6, EXPANDING THE THIRD STREAM OF LIQUID CHLORINE FROM STEP 4 TO PRODUCE REFRIGERATION WHICH IS EMPLOYED TO EFFECT THE COOLING IN STEP 5 AND PASSING THE CHLORINE GAS THUS PRODUCED TO STEP 2 OF THE PROCESS.

Claim 2

A METHOD OF LIQUEFYING CHLORINE GAS CONTAINING INCONDENSABLES FROM THE GROUP CONSISTING OF AIR, CARBON DIOXIDE AND HYDROGEN AND AT APPROXIMATELY ATMOSPHERIC PRESSURE, WHICH METHOD COMPRISES STET 1, VAPORIZING LIQUID CHLORINE OBTAINED FROM STEP 4 TO PRODUCE A STREAM OF CHLORINE VAPOR UNDER PRESSURE; STEP 2, PASSING SAID STREAM OF CHLORINE VAPOR UNDER PRESSURE THROUGH AN INIECTOR COMMUNICATING WITH THE CHLORINE GAS TO BE LIQUEFIED AND WITH CHLORINE GAS COMING FROM STEP 6 AND THUS PRODUCING A STREAM OF CHLORINE GAS UNDER PRESSURE CONTAINING SAID INCONDENSABLES; STEP 3, COOLING THE STREAM FROM STEP 2 TO CONDENSE THE MAJOR PORTION BUT NOT ALL OF THE CHLORINE GAS; STEP 4, DIVIDING THE LIQUID CHLORINE FROM STEP 3 INTO THREE STREAMS, ONE OF WHICH IS EMPLOYED IN STEP 1 OF THE PROCESS; STEP 5, COOLING ANOTHER OF THE STREAMS OF LIQUID CHLORINE FROM STEP 4 CONTAINING CHLORINE GAS NOT CONDENSED IN STEP 3 AND SAID INCONDENSABLES TO EFFECT CONDENSATION TO THE RESIDUAL CHLORINE GAS, WITHDRAWING THE CHLORINE CONDENSATE THUS PRODUCED FROM THE PROCESS AS PRODUCT AND VENTING THE INCONDENSABLES FROM THE PROCESS; AND STEP 6, EXPANDING THE THIRD STREAM OF LIQUID CHLORINE FROM STEP 4 TO PRODUCE REFRIGERATION WHICH IS EMPLOYED TO EFFECT THE COOLING IN STEP 5 AND PASSING THE CHLORINE GAS THUS PRODUCED TO STEP 2 OF THE PROCESS.