Patent US4414099A successfully refreshed from Google Patents.
US4414099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid coking with the addition of alkaline earth metal ferrite-containing catalysts
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1982-09-13
•
Granted: 1983-11-08
•
Expires: 2002-09-13
Abstract
Abstract A fluid coking process is provided in which a catalyst comprising an alkaline earth metal ferrite is present in the fluid coking zone.
Inventors
- 👤 Robert C. Schucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:25
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10B; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10; C10G11/14; C10G11/18
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
88 words
In a fluid coking process comprising the steps of: contacting a carbonaceous chargestock with hot fluidized solids in a fluidized coking bed contained in a coking zone maintained in a fluidized state by the introduction of a fluidizing gas and operated at coking conditions, to produce a vapor phase product and a solid carbonaceous material which deposits on said fluidized solids, the improvement which comprises the presence of a catalyst in said coking zone, said catalyst comprising an effective amount of at least one alkaline earth metal ferrite.
Claim 2
Dependent Claim
88 words
In a fluid coking process comprising the steps of: contacting a carbonaceous chargestock with hot fluidized solids in a fluidized coking bed contained in a coking zone maintained in a fluidized state by the introduction of a fluidizing gas and operated at coking conditions, to produce a vapor phase product and a solid carbonaceous material which deposits on said fluidized solids, the improvement which comprises the presence of a catalyst in said coking zone, said catalyst comprising an effective amount of at least one alkaline earth metal ferrite.
Claim 3
Dependent Claim
25 words
The process of claim 1 wherein said alkaline earth metal is selected from the group consisting of beryllium, magnesium, calcium, strontium, barium and mixtures thereof.
Claim 4
Dependent Claim
28 words
The process of claim 1 wherein said alkaline earth metal ferrite is selected from the group consisting of calcium metaferrite, calcium orthoferrite, magnesioferrite, barium ferrite, and mixtures thereof.
Claim 5
Dependent Claim
14 words
The process of claim 1 wherein said alkaline earth metal ferrite is barium ferrite.
Claim 6
Dependent Claim
30 words
The process of claim 1 wherein said catalyst is present in said coking zone in a weight ratio of catalyst to carbonaceous feed ranging from about 0.1:1 to about 1:1.
Claim 7
Dependent Claim
29 words
The process of claim 1 wherein said catalyst is added to said chargestock in an amount ranging from about 0.1 to about 10 weight percent based on said chargestock.
Claim 8
Dependent Claim
27 words
The process of claim 1 wherein said alkaline earth metal ferrite is present in said catalyst in an amount ranging from about 0.1 to 100 weight percent.
Claim 9
Dependent Claim
20 words
The process of claim 1 wherein said catalyst has a particle size of less than about 44 microns in diameter.
Claim 10
Dependent Claim
20 words
The process of claim 1 wherein said coking conditions include a temperature ranging from about 850° to about 1400° F.
Claim 11
Dependent Claim
20 words
The process of claim 1 wherein said coking conditions include a temperature ranging from about 900° to about 1200° F.
Claim 12
Dependent Claim
20 words
The process of claim 1 wherein said coking conditions include a pressure ranging from about 0 to about 150 psig.
Claim 13
Dependent Claim
16 words
The process of claim 1 wherein said catalyst consists essentially of an alkaline earth metal ferrite.
References Cited (Backward Citations)
US3707462A
Cited
US4229283A
Cited
US4298460A
Cited
US4308173A
Cited
US4269696A
Cited
US4305809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-07 | 1987-05-09 | 1987-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-07 | 1991-05-09 | 1991-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-07 | 1995-05-09 | 1995-11-08 | $7700.00 | Window Closed / Lapsed |