CATALYST OF ISOMERIZATION OF N-ALKANS IN THE PROCESS OF REFORMING HYDRO-CLEANED PETROL FRACTIONS (VERSIONS) Russian patent published in 2017 - IPC B01J23/00 B01J23/42 B01J23/62 B01J29/85 C07C5/22 

FIELD: chemistry.

SUBSTANCE: according to the first version, the catalyst contains, wt %: platinum 0.1-0.3, tin 0.07-0.30, silicoaluminophosphate zeolite SAPO-31 or silicoaluminophosphate zeolite SAPO-11 10-60, and alumina-the balance. In a particular case, the catalyst further contains a zeolite of the FAU structure in an amount of 10.0 to 60.0 wt %, and as a zeolite of the FAU structure is an aluminosilicate USY in the H+ form with a mole ratio SiO₂/Al₂O₃, equal to 82.6. In a second version, the catalyst contains, wt %: platinum 0.1-0.3, a mixture of silicoaluminophosphate zeolite SAPO-31 and silicoaluminophosphate zeolite SAPO-11 10.0-60.0 and alumina-the balance. In a particular case, the catalyst further contains a zeolite of the FAU structure in an amount of 10.0 to 60.0 wt %, and as a zeolite of the FAU structure is an aluminosilicate USY in the H+ form with a mole ratio SiO₂/Al₂O₃ equal to 82.6 and tin of 0.1-0.30 wt %.

EFFECT: ability to efficiently conduct the isomerization of n-alkanes during the reforming of hydrotreated gasoline fractions, ensuring a high selectivity for the formation of iso-alkanes and an increase in the content of iso-alkanes in the reformate.

7 cl, 4 tbl, 12 ex