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Process for controlling carbon residue content of oil

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1. A METHOD FOR CONTROLING A HYDROCARBON OIL REFINING PROCESS IN RESPONSE TO CHANGES IN THE CARBON RESIDUE CONTENT OF AN OIL STREAM OF SAID PROCESS, COMPRISING SUBJECTING A PLURALITY OF SAMPLES TAKEN AT DIFFERENT TIMES FROM SAID OIL STREAM TO SPECTROMETIC ANALYSIS BY PASSING LIGHT THERETHROUGH OF A WAVELENGTH THAT IS SELECTIVELY ABSORBABLE BY COMPONENTS OF THE OIL THAT ARE INDICATIVE OF THE CARBON RESIDUE CONTENT OF THE OIL, IN A PROPORTION RELATED TO THE QUANTITY OF SAID COMPONENTS IN THE OIL, DETECTING THE INTENSITY OF THE LIGHT TRANSMITTED THROUGH THE OIL SAMPLES, AND CONVERTING THE TRANSMITTED LIGHT TO AT LEAST ONE OUPUT SIGNAL WHOSE INTENSITY IS RELATED TO THE QUANTITY OF SAID COMPONENTS IN THE OIL SAMPLES, AND MODIFIYING A VARIABLE IN SAID HYDROCARBON OIL REFINING PROCESS IN RESPONSE TO CHANGES IN AT LEAST ONE OF (A) THE ABSORPTION SIGNAL INTENSITY, AND (B) A FUNCTION THEREOF THAT IS ALSO RELATED TO THE QUANTITY OF SAID COMPONENTS IN THE OIL SAMPLES.
10. AN ON-LINE ANALYTICAL APPARATUS FOR QUANTITATIVELY ANALYZING A HYDROCARBON OIL PROCES STREAM FOR CARBON RESIDUE CONTENT, COMPRISING HYDROCARBON OIL REFINING APPARATUS PROVIDE WITH CONDUIT MEANS FORM CONDUCTING A HYDROCARBON OIL STREAM IN SAID REFINING APPARATUS, SAMPLING MEANS ASSOCIATED WITH SAID CONDUIT MEANS FOR WITHDRAWING HYDROCARBON OIL SAMPLES FROM THE OIL STREAM TRANSPORTED THEREBY, SPECTROPHOTOMETIC MEANS PROVIDED WITH AN ABSORPTION CELL CONNECTED TO SAID SAMPLING MEANS SO AS TO PERMIT FLOW OF SAID OIL SAMPLES INTO SAID ABSORPTION CELL, SAID SPECTROPHOTOMETRIC MEANS ALSO BEING PROVIDED WITH A SOURCE OF LIGHT HAVING A WAVELENGTH THAT IS SELECTIVELY ABSORBABLE BY COMPONENTS OF THE OIL THAT ARE INDICATIVE OF THE CARBON RESIDUE CONTENT OF THE OIL, AND THAT IS SELECTIVELY ABSORBABLE BY SUCH COMPONENTS IN A PROPORTION RELATED TO THE QUANTITY OF SAID COMPONENTS IN THE OIL, SAID SPECTROPHOTOMETRIC MEANS ALSO INCLUDING DETECTING MEANS FOR SENSING THE INTENSITY OF THE LIGHT OF SAID WAVELENGTH TRANSMITTED BY THE OIL, AND MEANS FOR CONVERTING THE TRANSMITTED LIGHT TO AN OUTPUT SIGNAL WHOSE INTENSITY IS RELATED TO THE INTENSITY OF THE TRANSMITTED LIGHT AND THUS TO THE QUANTITY OF SAID COMPONENTS IN THE OIL, AND RECORDING MEANS FOR INDICATING AT LEAST ONE OF (A) THE ABSORPTION SIGNAL INTENSITY, AND (B) A FUNCTION THEREOF THAT IS ALSO RELATED TO THE QUANTITY OF SID COMPONENTS IN THE OIL.
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