Vegetable oil hydroconversion process
AssigneePetroleo Brasileiro S.A. - Petrobras
InventorJefferson Gomes
Life of this patent
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Abstract
A vegetable oil hydroconversion process is described for hydroconverting a mixture between 1 to 75% in mass of oil or natural fat (1) and the rest mineral oil (2), hydroconverted in a reactor (205) under conditions of pressure, temperature, hydrogen (flow 119) and sulfide catalyst of Groups VIII and VIB, obtaining, after sour water separation (flow 111) and rectification (flow 112), a specified diesel product (4). The product (4) has an ITQ/DCN (cetane number) higher than a product obtained from a pure mineral based oil would have, lower density than from a base oil and a plugging point depending on the mineral oil flow, as well as greater oxidation stability than the base oil.
Claims12
Process for the hydroconversion of vegetable oils, in the presence of a hydrogen flow, hydroconversion catalysts and hydroconversion conditions, to obtain diesel oil, the said process is characterized by the following:
- a) Provide an oil or natural fats;
- b) Provide a hydrocarbon oil;
- c) In a hydroconversion reactor and in the presence of a catalyst and hydrogen flow, pressure and temperature, effect the hydroconversion;
- d) Recover a diesel oil flow, in which:
- i) The IQT of the diesel oil obtained is higher than for diesel oil obtained by the hydroconversion process of pure hydrocarbons;
- ii) The density of the diesel oil obtained is lower than for diesel oil obtained by the hydroconversion process of pure hydrocarbons;
- iii) The oxidation stability of the diesel product, as measured by LPR, is higher than for diesel oil obtained by the hydroconversion of pure hydrocarbons.
Dependencies are inferred from the claim text.