PROCESS FOR DESULFURING AND REFINING HYDROCARBON FRACTIONS CONTAINING IMPORTANT QUANTITIES OF AROMATIC CONSTITUENTS

摘要

The invention relates to a process for desulfurizing and refining hydrocarbon fractions containing large amounts of aromatic constituents and organic sulfur compounds as impurities. BR/ This process consists of treating the organic compounds of sulfur with hydrogen to convert them into hydrogen sulphide using a catalyst selected from the catalyst systems Co-Mo, Ni-Mo and Ni-Co-Mo, after having submitted this catalyst has a preliminary sulfurization treatment by contacting with hydrogen and a hydrocarbon containing thiophenes and to carry out the treatment with hydrogen at a temperature between 200 and 400 degrees C. / P