Patent US4770765A successfully refreshed from Google Patents.
US4770765A
Expired / Lapsed
US
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Hydrocarbon cracking process and catalyst for use in same
Assignee: Honeywell UOP LLC
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Filing: 1987-07-14
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Granted: 1988-09-13
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Expires: 2007-07-14
Abstract
Abstract In a catalytic cracking process which includes contacting a hydrocarbon feedstock in a contacting zone in the presence of solid composition containing molecular sieve-containing catalyst capable of promoting hydrocarbon cracking at conditions effective to crack the hydrocarbon feedstock to lower boiling components, the improvement comprising conducting the contacting in the presence of at least one metal component, other than the catalyst, containing calcium and tin. A composition of matter comprising such catalyst and metal component is also disclosed.
Inventors
- 👤 Robert Bartek
- 👤 Gerald M. Woltermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:25
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/061; B01J29/08; B01J29/085; B01J29/088; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B01J2229/00; B01J2229/30; B01J2229/42; Y; Y10; Y10S; Y10S502/00; Y10S502/521; Y10S502/525
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
69 words
In a catalytic cracking process which includes contacting a hydrocarbon feedstock in a contacting zone in the presence of solid composition containing molecular sieve-containing catalyst capable of promoting cracking said hydrocarbon feedstock at conditions effective to crack said hydrocarbon feedstock to one or more lower boiling components, the improvement comprising: conducting said contacting in the presence of at least one metal component, other than said catalyst, comprising calcium stannate.
Claim 2
Dependent Claim
69 words
In a catalytic cracking process which includes contacting a hydrocarbon feedstock in a contacting zone in the presence of solid composition containing molecular sieve-containing catalyst capable of promoting cracking said hydrocarbon feedstock at conditions effective to crack said hydrocarbon feedstock to one or more lower boiling components, the improvement comprising: conducting said contacting in the presence of at least one metal component, other than said catalyst, comprising calcium stannate.
Claim 3
Dependent Claim
39 words
The process of claim 1 wherein said feedstock includes an amount of at least one contaminating metal and said metal component is present in an amount effective to reduce the deleterious effect of said contaminating metal on said catalyst.
Claim 4
Dependent Claim
11 words
The process of claim 2 wherein said contaminating metal is vanadium.
Claim 5
Dependent Claim
12 words
The process of claim 1 wherein said metal component further contains oxygen.
Claim 6
Dependent Claim
29 words
The process of claim 1 wherein said metal component is present in an amount in the range of about 0.1% to about 25% by weight of said solid composition.
Claim 7
Dependent Claim
29 words
The process of claim 1 wherein said metal component is present in an amount in the range of about 1% to about 20% by weight of said solid composition.
Claim 8
Dependent Claim
28 words
The process of claim 1 wherein said catalyst is present in solid particles and said metal component is present in at least a portion of said solid particles.
Claim 9
Dependent Claim
24 words
The process of claim 1 wherein said catalyst is present in solid particles and said metal component is present separate from said solid particles.
Claim 10
Dependent Claim
24 words
The process of claim 1 wherein said contacting takes place with said solid composition in the form of solid particles in the fluidized state.
Claim 11
Dependent Claim
34 words
The process of claim 1 wherein said solid particles are periodically contacted with an oxygen-containing gaseous medium to remove at least a portion of the carbonaceous deposit material formed during said feedstock/solid composition contacting.
Claim 12
Dependent Claim
18 words
The process of claim 11 wherein said periodic contacting takes place in the presence of said metal component.
Claim 13
Dependent Claim
47 words
The process of claim 2 wherein said solid composition is periodically contacted with an oxygen-containing gaseous medium to remove at least a portion of the carbonaceous deposit material formed during said feedstock/solid composition contacting and said periodic contacting takes place in the presence of said metal component.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-13 | 1992-03-14 | 1992-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-13 | 1996-03-14 | 1996-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-13 | 2000-03-14 | 2000-09-13 | $7700.00 | Window Closed / Lapsed |