Gas purifying apparatus

Claim 1

A GAS PURIFYING APPARATUS COMPRISING FIRST HEAT EXCHANGER MEANS INCLUDING A FIRST ELONGATED HOLLOW SHELL HAVING HEADER MEANS AT OPPOSITE END PORTIONS THEREOF AND IN SEALING RELATIONSHIP THERETO, A PLURALITY OF TUBULAR MEMBERS DIPOSED WITHIN SAID FIRST SHELL, ALL OF SUCH TUBULAR MEMBERS COMPRISING A FIRST PLURALITY OF TUBULAR MEMBERS HAVING OPPOSITE END PORTIONS THEREOF SUPPORTED BY AND IN SEALING RELATIONSHIP TO SAID HEADER MEANS AT OPPOSITE END PORTIONS OF SAID FIRST SHELL, FIRST GAS INLET MEANS CONNECTED WITH ONE END OF SAID FIRST SHELL, ALL OF SAID FIRST PLURALITY OF TUBULAR MEMBERS OPENING ATONE END TO SAID FIRST INLET MEANS FOR RECEIVING HOT GAS TO BE PURIFIED, FIRST GAS OUTLET MEANS CONNECTED WITH THE OTHER END OF SAID FIRST SHELL, ALL OF SAID FIRST PLURALITY OF TUBULAR MEMBERS OPENING AT THE OTHER END THEREOF TO SAID FIRST OUTLET MEANS, WHEREBY INCOMING HOT GAS PASSES THROUGH SAID FIRST PLURALITY OF TUBULAR MEMBERS WITHIN SAID FIRST SHELL IN ONLY ONE DIRECTION, SECOND HEAT EXCHANGER MEANS INCLUDING A SECOND ELONGATED HOLLOW SHELL HAVING HEADER MEANS AT OPPOSITE END PORTIONS THEREOF IN SEALING RELATIONSHIP THERETO, A SECOND PLURALITY OF TUBULAR MEMBERS HAVING OPPOSITE END PORTIONS THEREOF SUPPORTED BY AND IN SEALING RELATIONSHIP TO SAID HEADER MEANS AT OPPOSITE END PORTIONS OF SAID SECOND SHELL, SECOND GAS INLET MEANS CONNECTED WITH ONE END OF SAID SECOND SHELL, MEANS CONNECTING SAID SECOND GAS INLET MEANS WITH SAID FIRST GAS OUTLET MEANS, ALL OF SAID SECOND PLURALITY OF TUBULAR MEMBERS OPENING AT ONE END TO SAID SECOND INLET MEANS FOR RECEIVING GAS TO BE PURIFIED WHICH HAS PASSED THROUGH SAID FIRST HEAT EXCHANGER MEANS, SECOND GAS OUTLET MEANS CONNECTED WITH THE OTHER END OF SAID SECOND SHELL, ALL OF SAID SECOND PLURALITY OF TUBULAR MEMBERS OPENING AT THE OTHER ENDS THEREOF TO SAID SECOND OUTLET MEANS, WHEREBY GAS TO BE PURIFIED PASSES THROUGH SAID SECOND PLURALITY OF TUBULAR MEMBERS WITHIN SAID SECOND SHELL IN ONLY ONE DIRECTION, MEANS FOR INTRODUCING A COOLING MEDIUM WITHIN SAID SECOND SHELL ADJACENT SAID OTHER END OF SAID SECOND SHELL, OUTLET MEANS FOR SAID COOLING MEDIUM FOR REMOVING COOLING MEDIUM FROM SAID SECOND SHELL ADJACENT SAID ONE END OF SAID SECOND SHELL, SEPARATOR MEANS CONNECTED WITH THE SECOND GAS OUTLET MEANS ASSOCIATED WIT SAID SECOND SHELL, SAID SEPARATOR MEANS INCLUDING A LIQUID OUTLET AND A GAS OUTLET AND BEING ADAPTED FOR SEPARATINGCONDENSED VAPOR FROM GAS, THE GAS OUTLET OF SAID SEPARATOR MEANS BEING CONNECTED WITH SAID FIRST SHELL ADJACENT SAID OTHER END OF SAID FIRST SHELL, AND OUTLET MEANS FOR PURIFIED GAS CONNECTED WITH SAID FIRST SHELL ADJACENT SAID ONE END OF SAID FIRST SHELL, WHEREBY PURIFIED GAS FROM SAID SEPARATOR MEANS PASSES THROUGH SAID FIRST SHELL AND AROUND THE FIRST PLURALITY OF TUBULAR MEMBERS WITHIN SAID FIRST SHELL IN ONLY ONE DIRECTION WHICH IS IN COUNTERFLOW TO THE DIRECTION OF FLOW OF GAS THROUGH SAID FIRST PLURALITY OF TUBULAR MEMBERS.