Abstract: The invention proposes a process and device for the at least partial elimination of carbon deposits in a heat exchanger in which an oxidation treatment is carried out comprising at least one controlled-oxidation stage at a conventional temperature between 400 and about 500° C. for a period of at least 4 hours, by means of an oxidizing fluid comprising for the greater part an inert gas, and a lesser quantity of oxygen, under conditions such that the temperatures of the fluids feeding or leaving the heat exchanger remain below about 520° C. throughout the oxidation treatment, and in that the hot approach of the exchanger remains below about 120° C. throughout the oxidation treatment. The invention also relates to a hydrotreatment system for the implementation of this process and this device.
Type:
Grant
Filed:
March 14, 2003
Date of Patent:
August 16, 2005
Assignees:
Institut Francais du Petrole, Packinox, S.A.
Abstract: The invention proposes a process and device for the at least partial elimination of carbon deposits in a heat exchanger in which an oxidation treatment is carried out comprising at least one controlled-oxidation stage at a conventional temperature between 400 and about 500° C. for a period of at least 4 hours, by means of an oxidizing fluid comprising for the greater part an inert gas, and a lesser quantity of oxygen, under conditions such that the temperatures of the fluids feeding or leaving the heat exchanger remain below about 520° C. throughout the oxidation treatment, and in that the hot approach of the exchanger remains below about 120° C. throughout the oxidation treatment. The invention also relates to a hydrotreatment system for the implementation of this process and this device.
Type:
Application
Filed:
March 14, 2003
Publication date:
December 18, 2003
Applicants:
Institut Francais du Petrole, Packinox S.A.