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US 11,891,577 B2Granted
FCC additive composition for bottoms cracking and a process for preparation thereof
AssigneeHindustan Petroleum Corporation Limited
InventorsNarasimharao Kanna, Somanath Kukade, Pramod Kumar, Ramachandrarao Bojja
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Abstract
The present disclosure is an FCC additive composition comprising an acidity enhanced modified clay; an acidity enhanced modified alumina; a binder; a phosphorous oxide and a boron oxide, as well as a process for preparing the FCC additive composition. The FCC additive as disclosed is capable of cracking bottoms comprising large hydrocarbon molecules/heavy fuel oils, it enhances bottoms conversion and reduces formation of dry gas.
Claims15
A process for preparing a fluid catalytic cracking (FCC) additive composition, the process consisting of:
- a. mixing in water, at least one alumina and an aqueous solution of a precursor of phosphorus under stirring for a time period in a range of 0.5 to 5 hours, at a temperature in a range of 25 to 35° C. to obtain a first slurry comprising a modified alumina;
- b. adding at least one binder to the first slurry under stirring for a time period in a range of 20 to 60 minutes, at a temperature in a range of 25 to 35° C. to obtain a second slurry;
- c. adding a precursor of boron to the second slurry under stirring for a time period in a range of 0.5 to 2 hours, at a temperature in a range of 25 to 35° C. to obtain a resultant slurry;
- d. adding an acidity enhanced modified clay to the resultant slurry under stirring for a time period in a range of 0.5 to 5 hours, at a temperature in a range of 25 to 35° C. to obtain a product mixture comprising the FCC additive composition;
- and
- e. separating the FCC additive composition from the product mixture, followed by drying and calcining to obtain the FCC additive composition.
3 more elements
Dependencies are inferred from the claim text.