US3692858A
Expired / Lapsed
US
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Catalytic hydrocracking process for distillation residues
Assignee: Foster Grant Co Inc
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Filing: 1971-04-21
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Granted: 1972-09-19
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Expires: 1991-04-21
Abstract
Abstract A feed stock composed of one or more members of the group consisting of polyalkylbenzenes, indenes, naphthalenes, diphenyls, acenaphthenes, phenanthrenes and aromatic polymeric materials is subjected to hydrocracking by the use of a catalyst which may be a mixture of oxide of molybdenum and cobalt, molybdenum and nickel, or molybdenum, cobalt and nickel, and a carrier, such as alumina.
Inventors
- 👤 Charles C Brewer
- 👤 Charles R Killian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:26
CPC Classifications
C; C10; C10G; C10G47/00
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
88 words
A process according to claim 1 in which the feed stock is passed through the catalyst bed at a rate of from about 0.35 to about 1.5 pounds of feed stock per pound of catalyst per hour, the amount of hydrogen is from about 22.6 to about 40 standard cubic feet of hydrogen per pound of feed stock, the catalyst is at a temperature within the range of from about 1,000*F. to about 1200*F. and the pressure is within the range from about 200 to about 400 psig.
Claim 2
Dependent Claim
43 words
A process according to claim 1 in which the catalyst comprises oxides of cobalt, nickel, and molybdenum on an alumina carrier and the atomic ratio of cobalt plus nickel to molybdenum is in the range of 1 to 5 to 1 to 1.
Claim 3
Dependent Claim
40 words
A process according to claim 1 in which the catalyst comprises oxides of cobalt and molybdenum on an alumina carrier and the atomic ratio of cobalt to molybdenum is within the range of 1 to 5 to 1 to 1.
Claim 4
Dependent Claim
40 words
A process according to claim 1 in which the catalyst comprises oxides of nickel and molybdenum on an alumina carrier and the atomic ratio of nickel to molybdenum is within the range of 1 to 5 to 1 to 1.
Claim 5
Dependent Claim
71 words
A process according to claim 1 in which the catalyst comprises oxides of cobalt, nickel, and molybdenum on an alumina carrier in which the amount of cobalt as CoO plus the nickel as NiO is within the range of from about 1 to 5 percent by weight, the amount of molybdenum as MoO3 is within the range of from about 2 to 50 percent by weight, and the remainder is alumina.
Claim 6
Dependent Claim
62 words
A process according to claim 1 in which the catalyst comprises oxides of cobalt and molybdenum on an alumina carrier in which the amount of cobalt as CoO is within the range of from about 1 to 5 percent by weight, the molybdenum as MoO3 is within the range of from about 2- 50 percent by weight, and the remainder is alumina.
Claim 7
Dependent Claim
65 words
A process according to claim 1 wherein the catalyst comprises oxides of nickel and molybdenum on an alumina carrier in which the nickel as NiO is present in an amount within the range of from about 1 to 5 percent by weight, the molybdenum as MoO3 is present in an amount of from about 2 to 20 percent by weight and the remainder is alumina.
Claim 8
Dependent Claim
17 words
A process according to claim 1 wherein the feed stock is comprised substantially of aromatic polymeric compounds.
Claim 9
Dependent Claim
43 words
A process according to claim 9 in which the catalyst comprises oxides of cobalt, nickel, and molybdenum on an alumina carrier and the atomic ratio of cobalt plus nickel to molybdenum is in the range of 1 to 5 to 1 to 1.
Claim 10
Dependent Claim
40 words
A process according to claim 9 in which the catalyst comprises oxides of cobalt and molybdenum on an alumina carrier and the atomic ratio of cobalt to molybdenum is within the range of 1 to 5 to 1 to 1.
Claim 11
Dependent Claim
40 words
A process according to claim 9 in which the catalyst comprises oxides of nickel and molybdenum on an alumina carrier and the atomic ratio of Nickel to molybdenum is within the range of 1 to 5 to 1 to 1.
Claim 12
Dependent Claim
29 words
A process according to claim 9 wherein the feed stock consists substantially of at least one member of the group consisting of polystyrene, polydivinylbenzene, polyethylvinylbenzene and mixtures of these.
Claim 13
Dependent Claim
43 words
A process according to claim 13 in which the catalyst comprises oxides of cobalt, nickel, and molybdenum on an alumina carrier and the atomic ratio of cobalt plus nickel to molybdenum is in the range of 1 to 5 to 1 to 1.
Claim 14
Dependent Claim
40 words
A process according to claim 13 in which the catalyst comprises oxides of cobalt and molybdenum on an alumina carrier and the atomic ratio of cobalt to molybdenum is within the range of 1 to 5 to 1 to 1.
Claim 15
Dependent Claim
40 words
A process according to claim 13 in which the catalyst comprises oxides of nickel and molybdenum on an alumina carrier and the atomic ratio of nickel to molybdenum is within the range of 1 to 5 to 1 to 1.
Claim 16
Dependent Claim
126 words
A process for the recovery of valuable aromatic hydrocarbons from polystyrene comprising passing a mixture of polystyrene and hydrogen through a bed of hydrocracking catalyst comprised of at least one oxide selected from a group consisting of cobalt, nickel and molybdenum on an alumina carrier, the amount of hydrogen being sufficient to saturate any unsaturated hydrocarbons which result from cracking the polystyrene, the rate of flow of the polystyrene through the catalyst bed being maintained at about 0.3 to about 3.5 lbs. per pound of the catalyst per hour, the temperature of the catalyst bed being maintained within the range of about 800*F. to about 1,300*F., and the pressure of the polystyrene and hydrogen being maintained within the range of about 150 to about 700 psig.
Claim 17
Dependent Claim
43 words
A process according to claim 17 in which the catalyst comprises oxides of cobalt, nickel, and molybdenum on an alumina carrier and the atomic ratio of cobalt plus nickel to molybdenum is in the range of 1 to 5 to 1 to 1.
Claim 18
Dependent Claim
40 words
A process according to claim 17 in which the catalyst comprises oxides of cobalt and molybdenum on an alumina carrier and the atomic ratio of cobalt to molybdenum is within the range of 1 to 5 to 1 to 1.
Claim 19
Dependent Claim
40 words
A process according to claim 17 in which the catalyst comprises oxides of nickel and molybdenum on an alumina carrier and the atomic ratio of nickel to molybdenum is within the range of 1 to 5 to 1 to 1.
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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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |