| 摘要 |
The present invention concerns a hydrotreatment process for petroleum cuts, in order to achieve simultaneously their desulfurization and the improvement of their flow properties. The process comprises treating the cuts in the presence of a catalytic system based on a zeolitic crystalline silico aluminate of the offretite type, wherein the synthetic offretite used has a crystalline structure identical to natural offretite and has the chemical formula (M1 M2 . . . )2(Al2O3) (SiO2)y in which y is comprised between 10 and 50, M1 and M2 are selected from among cations of group I and II of the Periodic Table of Elements and this offretite is associated with a bimetallic catalyst comprising a mixture of an oxide or sulfide of a metal selected from among the group comprising chromium, molybdenum and tungsten with an oxide or a sulfide of a metal selected from among the group comprising iron, cobalt and nickel.
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