NOVELTY - The process comprises cooling an effluent of a hydrotreatment reactor at a temperature of 50 degrees C using an exchanger, which is functioned as a cold source or a coolant, and regenerating the amine using a distillation column equipped with a reboiler functioning at a temperature of 130 degrees C. The reboiler is functioned a heat source. A temperature difference between the heat source and the cold source is 80 degrees C. A heat circuit pump is placed between the cold source and the heat source for reducing carbon dioxide discharge.    USE - The process is useful for hydrotreating the petroleum fraction associated with an amine treatment process using a heat pump device for separating hydrogen from hydrogen sulfide (claimed).    ADVANTAGE - The process is capable of energy-efficiently, simply and economically hydrotreating the petroleum fraction associated with the amine treatment process using the heat pump device thus ensuring the separation of hydrogen from hydrogen sulfide with improved performance and without the emission of greenhouse gas.    DETAILED DESCRIPTION - The process comprises cooling an effluent of a hydrotreatment reactor at a temperature of 50 degrees C using an exchanger, which is functioned as a cold source or a coolant, and regenerating the amine using a distillation column equipped with a reboiler functioning at a temperature of 130 degrees C. The reboiler is functioned a heat source. A temperature difference between the heat source and the cold source is 80 degrees C. A heat circuit pump is placed between the cold source and the heat source for reducing carbon dioxide discharge. The coolant has a boiling temperature of less than or equal to 50 degrees C for a pressure of less than 2 bars, and a condensation temperature of greater than 130 degrees C for a pressure of 1 bar. An INDEPENDENT CLAIM is included for a heat pump device.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a process for hydrotreating the petroleum fraction associated with an amine treatment process for separating hydrogen from hydrogen sulfide.    Hydrogen (102)    Hot effluent (110)    Cold effluent (111)    Reboiler (1010)    Liquid effluent. (202)