| US 7,517,827 B2 | ||
| Process for preparation of liquefied petroleum gas selective cracking catalyst | ||
| Gopal Ravichandran, Faridabad (India); Biswanath Sarkar, Faridabad (India); Mohan P. Kuvettu, Faridabad (India); Deepa Megavathu, Faridabad (India); Sanjay K Ray, Faridabad (India); Shiba P. Choudhury, Faridabad (India); Sudipta Roy, Faridabad (India); Venkatachalam Krishnan, Faridabad (India); and Satish Makhija, Faridabad (India) | ||
| Assigned to Indian Oil Company Ltd, Faridabad (India) | ||
| Filed on Aug. 17, 2006, as Appl. No. 11/506,405. | ||
| Claims priority of application No. 516/DEL/2006 (IN), filed on Feb. 27, 2006. | ||
| Prior Publication US 2007/0203017 A1, Aug. 30, 2007 | ||
| Int. Cl. B01J 29/06 (2006.01) | ||
| U.S. Cl. 502—63 [502/68; 502/71] | 29 Claims |
| 1. A process for preparing a catalyst composition for cracking heavy hydrocarbon, comprising:
treating a high silica low soda medium pore zeolite with an ammoniacal solution to obtain a zeolite slurry having a pH between
about 5 to about 9;
treating an alumina with a dilute acid to obtain an alumina binder;
preparing an acidic clay slurry with a source of phosphate;
combining the treated zeolite, the alumina binder, and the clay slurry, to obtain a slurry mixture; and
spray-drying and calcining the slurry mixture to obtain the catalyst.
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