Patent US3944503A successfully refreshed from Google Patents.
US3944503A
Expired / Lapsed
US
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Catalyst for conversion of heavy hydrocarbon oils
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1974-06-10
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Granted: 1976-03-16
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Expires: 1994-06-10
Abstract
Abstract A catalyst and process are described for the conversion of heavy hydrocarbon oils comprising contacting the oil with hydrogen in the presence of a conversion catalyst containing a Group VI and/or VIII metal supported on a carrier preferably comprising silica and alumina, the catalyst having the following structural characteristics:
Inventors
- 👤 Munehisa Suto
- 👤 Takuji Itoh
- 👤 Nobuaki Tagaya
- 👤 Takashi Obayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:23
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J35/00; B01J35/60; B01J35/61; B01J35/615; B01J35/63; B01J35/633; B01J35/635; B01J35/64; B01J35/647
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
186 words
A catalyst comprising a catalytic metal or compound thereof on a porous silica-alumina carrier having a silica content in the range of between 0 and about 30% by weight and further characterized in that: a. the volume of the pores in said catalyst having a radius in the range of from about 0 to about 300 A is greater than about 0.30 milliliters per gram; b. the volume of the pores in said catalyst having a radius in the range of from about 0 to about 30 A is less than about 25% of the volume of the pores having a radius in the range of about 0 to about 300 A; c. a volume of the pores having a radius in the range of from about 75 to about 300 A is less than about 40% of the volume of the pores having a radius in the range of from about 0 to about 300 A; and d. the volume of the pores having a radius in the range of from about 75 to about 75,000 A is smaller than about 0.25 milliliters per gram.
Claim 2
Dependent Claim
186 words
A catalyst comprising a catalytic metal or compound thereof on a porous silica-alumina carrier having a silica content in the range of between 0 and about 30% by weight and further characterized in that: a. the volume of the pores in said catalyst having a radius in the range of from about 0 to about 300 A is greater than about 0.30 milliliters per gram; b. the volume of the pores in said catalyst having a radius in the range of from about 0 to about 30 A is less than about 25% of the volume of the pores having a radius in the range of about 0 to about 300 A; c. a volume of the pores having a radius in the range of from about 75 to about 300 A is less than about 40% of the volume of the pores having a radius in the range of from about 0 to about 300 A; and d. the volume of the pores having a radius in the range of from about 75 to about 75,000 A is smaller than about 0.25 milliliters per gram.
Claim 3
Dependent Claim
44 words
The catalyst composite of claim 1 wherein said catalytic metal or compound thereof comprises a metal, an oxide of a metal, a sulfide of a metal or mixtures thereof and, wherein said metal is selected from Groups VI and/or VIII of the Periodic Table.
Claim 4
Dependent Claim
50 words
The catalyst composite of claim 2 wherein the metals from Group VI are in the amount of from about 5 to about 20% by weight of the catalyst and the metals from Group VIII are in the amount of from about 0.1 to about 20% by weight of the catalyst.
Claim 5
Dependent Claim
22 words
The catalyst of claim 3 wherein said metal is selected from the group consisting of nickel, molybdenum, cobalt, tungsten and mixtures thereof.
Claim 6
Dependent Claim
27 words
The catalyst of claim 1 wherein said carrier of said catalyst also contains an additive selected from the group consisting of magnesia, titania, zirconia and mixtures thereof.
Claim 7
Dependent Claim
20 words
The catalyst of claim 5 wherein said additive comprises between about 1 and about 30 wt. % of the carrier.
Claim 8
Dependent Claim
21 words
The catalyst of claim 1 wherein the silica content of the carrier ranges from about 10 to about 25% by weight.
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) | 1979-03-16 | 1979-09-15 | 1980-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-16 | 1983-09-15 | 1984-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-16 | 1987-09-15 | 1988-03-16 | $7700.00 | Window Closed / Lapsed |