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Patent US4414141A successfully refreshed from Google Patents.
US4414141A
Expired / Lapsed
US
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Hydrotreating catalyst
Assignee: Lummus Technology LLC
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Filing: 1982-03-31
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Granted: 1983-11-08
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Expires: 2002-03-31
Abstract
Abstract A catalyst for hydrotreating of heavy feedstocks comprised of nickel and molybdenum, supported on alumina having a defined pore size distribution which has been calcined at a temperature of from 1150° F.-1300° F. Calcining of such catalyst at such temperatures is required in order to provide for effective use thereof as a hydrotreating catalyst for higher boiling feedstocks.
Inventors
- 👤 Harvey D. Schindler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:54
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/883; B01J35/00; B01J35/60; C; C10; C10G; C10G49/00; C10G49/02; C10G49/04; B01J35/61; B01J35/615; B01J35/64; B01J35/647; B01J35/651; B01J35/66; B01J35/69
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
134 words
A hydrotreating catalyst having an improved catalyst life, comprising: a catalytically effective amount of nickel and molybdenum supported on an alumina support having a total porosity of at least 0.5 cc/g and a pore size distribution of from 0.25 to 0.40 cc/g of pores with a diameter of less than 250 Å, 0.10 to 0.25 cc/g of pores with a diameter of from 250-500 Å, from 0.20 to 0.30 cc/g of pores with a diameter of from 500-1500 Å, from 0.05 to 0.15 cc/g of pores with a diameter of from 1500-4000 Å, and from 0.03 to 0.10 cc/g of pores with a diameter of greater than 4000 Å, said catalyst comprised of nickel and molybdenum supported on alumina having been prepared with calcining at a temperature of from 1150 F. to 1300 F.
Claim 2
Dependent Claim
134 words
A hydrotreating catalyst having an improved catalyst life, comprising: a catalytically effective amount of nickel and molybdenum supported on an alumina support having a total porosity of at least 0.5 cc/g and a pore size distribution of from 0.25 to 0.40 cc/g of pores with a diameter of less than 250 Å, 0.10 to 0.25 cc/g of pores with a diameter of from 250-500 Å, from 0.20 to 0.30 cc/g of pores with a diameter of from 500-1500 Å, from 0.05 to 0.15 cc/g of pores with a diameter of from 1500-4000 Å, and from 0.03 to 0.10 cc/g of pores with a diameter of greater than 4000 Å, said catalyst comprised of nickel and molybdenum supported on alumina having been prepared with calcining at a temperature of from 1150 F. to 1300 F.
Claim 3
Dependent Claim
24 words
The catalyst of claim 1 wherein the catalyst includes from 1% to 6% of nickel and from 5% to 16% of molybdenum, by weight.
Claim 4
Dependent Claim
17 words
The catalyst of claim 2 wherein the said temperature of calcining is from 1150° to 1250° F.
Claim 5
Dependent Claim
15 words
The catalyst of claim 2 wherein the total porosity is from 0.75 to 0.95 cc/g.
Claim 6
Dependent Claim
10 words
The catalyst of claim 4 wherein the alumina is gamma-alumina.
Claim 7
Dependent Claim
16 words
The catalyst of claim 2 wherein the catalyst further includes a catalytically effective amount of cobalt.
Claim 8
Dependent Claim
19 words
The catalyst of claim 1 wherein the surface area of the catalyst is at least 125 m 2 /g.
Claim 9
Dependent Claim
18 words
The catalyst of claim 7 wherein the surface area of the catalyst is from 150-300 m 2 /g.
Claim 10
Dependent Claim
85 words
The catalyst of claim 1 wherein there is from 0.34 to 0.36 cc/g of pores of a diameter of less than 250 Å, from 0.14 to 0.15 cc/g of pores with a diameter of from 250 to 500 Å, from 0.22 to 0.23 cc/g of pores with a diameter of from 500-1500 Å, from 0.10 to 0.11 cc/g of pores having a diameter of from 1500 to 4000 Å, and from 0.04 to 0.07 cc/g of pores with a diameter of greater than 4000 Å.
References Cited (Backward Citations)
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 |