Zeolitic molecular sieve adsorption process using the adsorbate as the desorbing medium

Claim 1

THE PROCESS OF REMOVING MOLECULES BELOW A PREDETERMINED SIZE FROM A HYDROCARBON STREAM COMPRISING THE STEPS OF, PASSING A CHARGE THROUGH A ZEOLITIC MOLECULAR SIEVE HAVING UNIFORM PASSAGES THEREIN OF APPROXIMATELY 5 ANGSTROM UNITS IN DIAMTER AND ADSORBING FROM THE CHARGE MOLECULES SELECTED FROM THE GROUP OF NORMAL PARAFFINS AND NORMAL OLEFINS UNTIL THE SIEVE IS SATURATED, AND THEN PASSING HEATED ADSORBATE THROUGH THE SIEVE TO HEAT IT TO A TEMPERATURE AT WHICH IS LOSES ITS ADSORPTIVE CHARACTERISTICS TO RECOVER THE ADSORBED MOLECULES FROM THE SIEVE.