PROCESS OF PASSIVATING HYDROCARBON-CRACKING CATALYST Russian patent published in 1995 - IPC

Abstract RU 2033256 C1

FIELD: petroleum chemistry. SUBSTANCE: catalyst with metals deposited on its surface is treated by a passivating agent based on antimony compounds containing (percent by weight) 4-40 of antimony trioxide, 0.1-1.5 of suspension agent chosen from vinyl polymers, ester dishosphates and cellulose derivatives the balance being water. The treatment takes place in the catalyst-regeneration zone. The passivating agent of choice has 60 percent of 1-6 or 0.01-0.99 μm particles and additional ethylene glycol. EFFECT: improved quality of finished product, simpler process. 3 cl, 2 tbl

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RU 2 033 256 C1

Authors

Marvin Merrill Dzhonson[Us]

Donal'D Kehlvin Tejbler[Us]

Dates

1995-04-20—Published

1987-09-14—Filed