Title:
PASSIVATION OF VANADIUM ACCUMULATED ON INACTIVE OR CATALYTIC SOLID FLOWABLE PARTICLE
Document Type and Number:
Japanese Patent JPS6096687
Kind Code:
A
Abstract:
Passivation of vanadium accumulated on catalyst, e.g. crystalline zeolite hydrocarbon conversion catalyst in the rare earth and/or ammonia exchanged zeolite form, effectively minimizes the degrading characteristics of accumulated vanadium on the catalyst. The passivation is accomplished by impregnating or, preferrable, precipitating, rare earths, e.g. lanthanum, onto the catalyst particles before and/or after vanadium accumulation. The process is also applicable to inert sorbent particles, e.g. those used for removing carbon and metals from contaminated hydrocarbons.
Inventors:
ETSUCHI UEIN BETSUKU
CHIYAARUZU EFU ROCHIYOO JIYUNI
CHIYAARUZU DAFURIYUU NIBAATO
CHIYAARUZU EFU ROCHIYOO JIYUNI
CHIYAARUZU DAFURIYUU NIBAATO
Application Number:
JP19382984A
Publication Date:
May 30, 1985
Filing Date:
September 14, 1984
Export Citation:
Assignee:
ASHLAND OIL INC
International Classes:
B01J23/10; B01J29/06; C10G11/00; B01J37/02; C10G11/02; C10G11/04; C10G11/05; C10G11/18; (IPC1-7): C10G11/02; C10G11/18
Foreign References:
| US4377470A | 1983-03-22 | |||
| US4198320A | 1980-04-15 | |||
| US4328891A | 1982-05-11 |
Attorney, Agent or Firm:
Kyozo Yuasa