Natural gasoline recovery process control method

Claim 1

IN A NATURAL GASOLINE RECOVERY PROCESS WHICH COMPRISES CONTACTING A NATURAL GAS FEED WITH AN ABSORPTION OIL IN AN ABSORPTION ZONE, WITHDRAWING FROM SAID ABSORPTION ZONE A FIRST RESIDUE GAS, WITHDRAWING FROM SAID ABSORPTION ZONE A RICH OIL, PASSING SAID RICH OIL TO A SEPARATION ZONE, WITHDRAWING NATURAL GASOLINE FROM SAID SEPARATION ZONE, WITHDRAWING ABSORPTION OIL FROM SAID SEPARATION ZONE, PASSING SAID NATURAL GASOLINE TO A STABILIZATION ZONE, WITHDRAWING FROM SAID STABILIZATION ZONE A STABILIZED NATURAL GASOLINE PRODUCT, AND WITHDRAWING FROM SAID STABILIZATION ZONE A SECOND RESIDUE GAS; A METHOD OF CONTROL WHICH COMPRISES COMBINING SAID FIRST RESIDUE GAS WITH SAID SECOND RESIDUE GAS IN A CONTACT ZONE, MEASURING A PROPERTY OF THE ABSORPTION OIL PASSED TO SAID ABSORPTION ZONE WHICH IS REPRESENTATIVE OF A TEMPERATURE OF SAID ABSORPTION OIL AND A FIRST EFFECT UPON THE IMPEDING COMPOSITION OF SAID COMBINED RESIDUE GAS, MEASURING A PROPERTY OF SAID RICH OIL WHICH IS REPRESENTATIVE OF A TEMPERATURE OF SAID RICH OIL AND A SECOND EFFECT UPON THE IMPENDING COMPOSITION OF SAID COMBINED RESIDUE GAS, MEASURING A PROPERTY OF THE COMBINED RESIDUE GAS WHICH IS REPRESENTATIVE OF A RATE OF FLOW OF SAID COMBINED RESIDUE GAS AND A THIRD EFFECT UPON THE IMPENDING COMPOSITION OF SAID COMBINED RESIDUE GAS, MEASURING A PROPERTY OF SAID SECOND RESIDUE GAS WHICH IS REPRESENTATIVE OF A RATE OF FLOW OF SAID SECOND RESIDUE GAS AND A FOURTH EFFECT UPON THE IMPENDING COMPOSITION OF SAID COMBINED RESIDUE GAS, COMBINING SAID FIRST, SECOND, THIRD AND FOURTH EFFECTS TO PRODUCE A VALUE REPRESENTATIVE OF SAID IMPENDING COMPOSITION, MANIPULATING THE FLOW OF SAID SECOND RESIDUE GAS TO SAID CONTACT ZONE IN RESPONSE TO SAID VALUE, MEASURING A PROPERTY OF SAID COMBINED RESIDUE GAS WHICH IS REPRESENTATIVE OF THE COMPOSITION THEREOF, AND FURTHER MANIPULATING THE FLOW OF SAID SECOND RESIDUE GAS TO SAID CONTACT ZONE IN RESPONSE TO SAID MEASURED PROPERTY OF SAID COMBINED RESIDUE GAS.