METHOD OF PREPARING CATALYST FOR OBTAINING DIESEL FUEL FROM RAW MATERIAL, WHICH CONTAINS TRIGLYCERIDES OF FATTY ACIDS Russian patent published in 2014 - IPC B01J37/02 B01J37/08 B01J37/18 B01J37/20 B01J21/04 B01J21/06 B01J23/835 B01J23/882 B01J23/883 C10G3/00 C10L1/02 C11C3/10 

FIELD: chemistry.

SUBSTANCE: method consists in successive application on carrier - amorphous aluminium oxide - by method of soaking with following drying and annealing of: water solution of thermally unstable salt of element, selected from the first group, including titanium, tin, zirconium, then water solution of thermally unstable salt of element, selected from the second group, including molybdenum, tungsten, and after that water solution of thermally unstable salt of element, selected from the third group, including cobalt, nickel. Obtained catalyst contains, wt %: oxide of element from the first group - 4.2-15.0, oxide of element from the second group - 12.4-14.2, oxide of element from the third group - 2.1-3.8, remaining part - aluminium oxide. After that, catalyst is activated first by soaking in hydrogen medium at temperature 450-500°C, pressure 5-8 MPa for 3-4 h, then sulfidation at temperature 250-300°C, pressure 5-8 MPa for 3-4 h. And sulfidation is carried out with mixture of hydrogen sulfide and hydrogen with concentration of hydrogen sulfide 10-15 vol%.

EFFECT: method makes it possible to obtain catalyst, which has increased isomerisation ability and preserves catalytic activity with respect to reaction of isomerisation for long time, which results in obtaining Diesel fuel, which has improved low-temperature properties.

4 ex