FIELD: hydrotreating catalysts.
SUBSTANCE: present invention relates to a method for producing a diesel fraction hydrotreating catalyst containing Ni, Mo and P, a catalyst obtained by this method, and a method for hydrotreating a diesel fraction using the obtained catalyst. The method of obtaining a catalyst includes the preparation of a solution of complex salts [P2Mo5O23]6-, [PMo12O40]3-, [PMo11O40]3-, [P2Mo18O42]6-, [PMo9O31(OH)3]6- of heteropoly anions, or mixtures thereof, using H3RO4 and an organic modifier, the combination and ratios of which provide the formation of heteropoly acid anions in solution [P2Mo5O23]6-, [PMo12O40]3-, [PMo11O40]3-, [P2Mo18O42]6-, [PMo9O31(OH)3]6-, or mixtures thereof and their stability at pH ranging from 0.7 to 4.5. The method also includes evacuation and impregnation of the carrier, modified or not modified with silicon compounds, with a solution of complex salts [P2Mo5O23]6-, [PMo12O40]3-, [PMo11O40]3-, [P2Mo18O42]6-, [PMo9O31(OH)3]6- of heteropoly anions, or mixtures thereof, maturation of the impregnated catalyst and drying to obtain samples, the content of components in which corresponds to the content of NiO, MoO3 and P2O5 oxides in the sample calcined for 2 hours at 550°C, equal to 2.2-6.2 wt.%, 14.0-30.0 wt.% and 0.6-5.0 wt.%, respectively, heat-resistant alumina carrier, modified or not modified with silicon compounds - the rest. Further, the method includes the activation of the samples in a stream of hydrogen when a mixture of dimethyl disulphide-oil fraction is supplied.
EFFECT: obtaining a highly active hydrotreating catalyst with a reduced bulk density and increased granule strength, which makes it possible to obtain diesel fuel components that meet modern regulatory requirements in quality.
19 cl, 8 tbl, 96 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CATALYST FOR DEEP HYDROTREATING OF DIESEL FRACTIONS, METHOD OF ITS PREPARATION AND METHOD OF HYDROTREATING WITH ITS USE | 2020 |
|
RU2744915C1 |
| PROCESS FOR IMPREGNATING A HYDROTREATING CATALYST SUPPORT | 2022 |
|
RU2794669C1 |
| COMPOSITION AND METHOD FOR PREPARATION OF CARRIER AND CATALYST OF DEEP HYDROFINING OF HYDROCARBON STOCK | 2012 |
|
RU2569682C2 |
| METHOD OF PREPARING CATALYSTS AND CATALYST FOR DEEP HYDROFINING OIL FRACTIONS | 2012 |
|
RU2486010C1 |
| CATALYST, METHOD OF THEREOF PREPARATION AND PROCESS OF SELECTIVE HYDRODESULPHURISATION OF OLEFIN-CONTAINING HYDROCARBON RAW MATERIAL | 2013 |
|
RU2557248C2 |
| COMPOSITION AND METHOD OF HYDROTREATING CATALYSTS SYNTHESIS OF DIESEL FRACTIONS MIXTURE | 2016 |
|
RU2700712C2 |
| METHOD FOR PRODUCING CATALYST FOR DEEP HYDROTREATMENT OF HYDROCARBON RAW MATERIALS, CATALYST AND METHOD FOR HYDROTREATMENT OF HYDROCARBON RAW MATERIALS WITH USE OF IT | 2020 |
|
RU2747053C1 |
| HYDRODESULPHURISATION CATALYST, METHOD FOR ITS PREPARATION AND PROCESS OF DEEP HYDROPURIFICATION OF HYDROCARBON RAW MATERIAL | 2014 |
|
RU2573561C2 |
| COMPOSITION AND METHOD OF PREPARATION OF CATALYSTS FOR HYDROFINING OF DIESEL FRACTIONS | 2016 |
|
RU2700713C2 |
| METHOD OF PRODUCING A CATALYST FOR HYDROTREATING OF PETROLEUM FRACTIONS | 2017 |
|
RU2661866C1 |
