FIELD: chemical or physical processes.
SUBSTANCE: invention relates to the hydrotreating used catalyst recovery, comprising at least 8 wt.% of coke and one or more base metals of Group VIII and / or Group VIb, comprising the stages of: (i) coke removal from the used hydrotreating catalyst; (ii) treating the catalyst obtained in step (i) with the aqueous gluconic acid solution containing from 2 to 60 wt.% of gluconic acid relative to the catalyst dry weight; and (iii) optionally, drying at the temperature of at most 200°C.
EFFECT: technical result is the regenerated catalyst increased efficiency (recovery and even increase in activity with respect to hydrotreating (hydrodesulfurization)).
22 cl, 1 tbl, 3 ex
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| METHOD OF HYDROTREATING CATALYST ACTIVATION | 2004 |
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RU2351634C2 |
| METHOD OF REJUVENATING SPENT AND REGENERATED CATALYST FROM GASOLINE HYDRODESULPHURISATION PROCESS | 2019 |
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| METHOD FOR HYDRODESULPHURISATION OF OLEFINIC GASOLINE FRACTIONS CONTAINING SULPHUR USING CATALYST REJUVENATED WITH ORGANIC COMPOUND | 2019 |
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| METHOD FOR HYDRODESULPHURISATION OF OLEFIN GASOLINE FRACTION CONTAINING SULPHUR, IN WHICH REGENERATED CATALYST IS USED | 2019 |
|
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| CATALYST BASED ON γ-VALEROLACTONE AND/OR HYDROLYSIS PRODUCTS THEREOF AND USE THEREOF DURING HYDROPROCESSING AND/OR HYDROCRACKING METHOD | 2016 |
|
RU2705382C2 |
| CATALYST BASED ON γ-KETOVALERIC ACID AND USE THEREOF IN HYDROTREATMENT AND/OR HYDROCRACKING | 2016 |
|
RU2698326C2 |
| CATALYST APPLICABLE FOR HYDROPROCESSING, CONTAINING GROUP VIII AND VIB METALS, AND METHOD FOR PRODUCING WITH ACETIC ACID AND DIALKYL(C1-C4)SUCCINATE | 2010 |
|
RU2551857C2 |
| PROCESS FOR PREPARING SULPHIDED CATALYST | 2014 |
|
RU2652800C2 |
| PROCESS FOR PREPARING HYDROTREATING CATALYST | 2014 |
|
RU2678578C2 |
| PROCESS FOR PREPARING HYDROTREATING CATALYST | 2014 |
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RU2678456C2 |
