Institut Francais Du Petrole, Des Carburants Et Lubrifiants Et

Bernard Vourron

Bernard Louvel

Dominique Tauszig

Michel Prevost

Guy Benker

The method consists in preparing from the crude petroleum being processed a representative cut constituting a vaporized fraction having a known yield, in plotting the TBP curve of the cut by chromatographic analysis and by integration of the quantitative signal produced as a result of the analysis. The information obtained from the analysis is processed in order to operate a control unit for generating signals which serve to adjust the rates of withdrawal of the cuts at different predetermined levels of the column.

Method of controlling a distillation column for topping crude petroleum

A sampling circuit connected directly to the distillation column consists of a primary loop formed by a sampling tube which penetrates into the column in a region of expansion and vaporization and is equipped with means for limiting the velocity of the vapor collected therein and for separating the entrained liquid fraction if necessary. The sampling circuit further comprises a condenser and a filter, the condensate being returned to the column by a circulating pump and a withdrawal of condensate being effected by a secondary loop for supplying an analyzing device in parallel.

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Oullins, France

Bernard Vourron