US3923638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-catalyst hydrocracking process
Assignee: Standard Oil Co
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Filing: 1973-12-20
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Granted: 1975-12-02
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Expires: 1993-12-20
Abstract
Abstract The process comprises contacting a feedstock which boils above about 350*F. and which contains nitrogen in an amount within the range of about 1 ppm to about 3,000 ppm in a feed-preparation zone in the presence of hydrogen and under hydrodenitrogenation conditions with a hydrodenitrogenation catalyst to obtain a denitrogenated effluent, and contacting at least a portion of the denitrogenated effluent in a hydrocracking zone in the presence of hydrogen and under hydrocracking conditions with a hydrocracking catalyst to obtain a hydrocracked effluent. The hydrodenitrogenation catalyst comprises as a hydrogenation component a Group VIA metal and Group VIII metal and/or their compounds and a cocatalytic acidic support comprising a largepore crystalline aluminosilicate material and a refractory inorganic oxide. The hydrocracking catalyst comprises as a hydrogenation component a Group VIA metal and a Group VIII metal and/or their compounds, and an acidic support of large-pore crystalline aluminosilicate material. For both hydrodenitrogenation catalyst and the hydrocracking catalyst, the preferred hydrogenation component comprises nickel and tungsten and/or their compounds and the preferred large-pore crystalline aluminosilicate material is ultrastable, large-pore crystalline aluminosilicate material. The preferred process is a single-stage process.
Inventors
- 👤 Ralph J Bertolacini
- 👤 Louis C Gutberlet
- 👤 Allen A Kozinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:49
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G45/12; C10G65/00; C10G65/02; C10G65/12
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
219 words
A PROCESS FOR HYDROCRACKING A PETROLEUM HYDROCARBON FEEDSTOCK WHICH BOILS ABOVE ABOUT 350*F. AND WHICH CONTAINS NITROGEN IN AN AMOUNT WITHIN THE RANGE OF ABOUT 1 PPM TO ABOUT 3,000 PPM, WHICH PROCESS COMPRISES CONTACTING IN A FEED-PREPARATION ZONE SAID FEEDSTOCK IN THE PRESENCE OF HYDROGEN AND UNDER HYDRODENITROGENATION CONDITIONS WITH A HYDRODENITROGENATION CATALYST TO OBTAIN A DENITROGENATED EFFLUENT, AND CONTACTING AT LEAST A PORTION OF SAID DENITROGENATED EFFLUENT IN A HYDROCRACKING ZONE IN THE PRESENCE OF HYDROGEN AND UNDER HYDROCRACKING CONDITIONS WITH A HYDROCRACKING CATALYST TO OBTAIN A HYDROCRACKED EFFLUENT, SAID HYDRODENITROGENATION CATALYST COMPRISING AS A HYDROGENATION COMPONENT A MEMBER SELECTED FROM THE GROUP CONSISTING OF (1) A METAL FROM GROUP VIA OF THE PERIODIC TABLE OF ELEMENTS AND A METAL FROM GROUP VIII OF THE PERIODIC TABLE OF ELEMENTS, (2) THEIR OXIDES, (3) THEIR SULFUIDES, AND (4) MIXTURES THEREOF AND A CO-CATALYTIC ACIDIC SUPPORT COMPRISING AN ULTRASTABLE, LARGE-PORE CRYSTALLINE ALUMINOSLIICATE MATERIAL AND A REFRACTORY INORGANIC OXIDE, AND SAID HYDROCRACKING CATALYST COMPRISING AS A HYDROGENATION COMPONENT A MEMBER SELECTED FROM THE GROUP CONSISTING OF (1) A METAL FROM GROUP VIA OF THE PERIODIC TABLE OF ELEMENTS AND A METAL FROM GROUP VIII OF THE PERIODIC TABLE OF ELEMENTS, (2) THEIR OXIDES, (3) THEIR SULFIDES, AND MIXTURES THEREOF AND AN ACIDIC SUPPORT OF AN ULTRASTABLE, LARGE-PORE CRYSTALLINE ALUMINOSILICATE MATERIAL.
Claim 2
Dependent Claim
219 words
A PROCESS FOR HYDROCRACKING A PETROLEUM HYDROCARBON FEEDSTOCK WHICH BOILS ABOVE ABOUT 350*F. AND WHICH CONTAINS NITROGEN IN AN AMOUNT WITHIN THE RANGE OF ABOUT 1 PPM TO ABOUT 3,000 PPM, WHICH PROCESS COMPRISES CONTACTING IN A FEED-PREPARATION ZONE SAID FEEDSTOCK IN THE PRESENCE OF HYDROGEN AND UNDER HYDRODENITROGENATION CONDITIONS WITH A HYDRODENITROGENATION CATALYST TO OBTAIN A DENITROGENATED EFFLUENT, AND CONTACTING AT LEAST A PORTION OF SAID DENITROGENATED EFFLUENT IN A HYDROCRACKING ZONE IN THE PRESENCE OF HYDROGEN AND UNDER HYDROCRACKING CONDITIONS WITH A HYDROCRACKING CATALYST TO OBTAIN A HYDROCRACKED EFFLUENT, SAID HYDRODENITROGENATION CATALYST COMPRISING AS A HYDROGENATION COMPONENT A MEMBER SELECTED FROM THE GROUP CONSISTING OF (1) A METAL FROM GROUP VIA OF THE PERIODIC TABLE OF ELEMENTS AND A METAL FROM GROUP VIII OF THE PERIODIC TABLE OF ELEMENTS, (2) THEIR OXIDES, (3) THEIR SULFUIDES, AND (4) MIXTURES THEREOF AND A CO-CATALYTIC ACIDIC SUPPORT COMPRISING AN ULTRASTABLE, LARGE-PORE CRYSTALLINE ALUMINOSLIICATE MATERIAL AND A REFRACTORY INORGANIC OXIDE, AND SAID HYDROCRACKING CATALYST COMPRISING AS A HYDROGENATION COMPONENT A MEMBER SELECTED FROM THE GROUP CONSISTING OF (1) A METAL FROM GROUP VIA OF THE PERIODIC TABLE OF ELEMENTS AND A METAL FROM GROUP VIII OF THE PERIODIC TABLE OF ELEMENTS, (2) THEIR OXIDES, (3) THEIR SULFIDES, AND MIXTURES THEREOF AND AN ACIDIC SUPPORT OF AN ULTRASTABLE, LARGE-PORE CRYSTALLINE ALUMINOSILICATE MATERIAL.
Claim 3
Dependent Claim
29 words
The process of claim 1 wherein said metal of Group VIA of said hydrocracking catalyst is tungsten and said metal of Group VIII of said hydrocracking catalyst is nickel.
Claim 4
Dependent Claim
12 words
The process of claim 1 wherein said process is a single-stage process.
Claim 5
Dependent Claim
35 words
The process of claim 1 wherein said metal of Group VIA of said hydrodenitrogenation catalyst is tungsten, said metal of Group VIII of said hydrodenitrogenation catalyst is nickel, and said refractory inorganic oxide is silica-alumina.
Claim 6
Dependent Claim
29 words
The process of claim 4 wherein said metal of Group VIA of said hydrocracking catalyst is tungsten and said metal of Group VIII of said hydrocracking catalyst is nickel.
Claim 7
Dependent Claim
25 words
The process of claim 4 wherein said ultrastable, large-pore crystalline aluminosilicate material of said hydrodenitrogenation catalyst is suspended in a porous matrix of said silica-alumina.
Claim 8
Dependent Claim
29 words
The process of claim 6 wherein said metal of Group VIA of said hydrocracking catalyst is tungsten and said metal of Group VIII of said hydrocracking catalyst is nickel.
Claim 9
Dependent Claim
12 words
The process of claim 7 wherein said process is a single-stage process.
Claim 10
Dependent Claim
52 words
The process of claim 4 wherein said ultrastable, large-pore crystalline aluminosilicate material of said hydrodenitrogenation catalyst is characterized by a maximum cubic unit cell dimension of 24.55 Angstrom units, hydroxyl infrared bands near 3700 cm 1 and near 3625 cm 1 and an allkali metal content of less than 1 weight percent.
Claim 11
Dependent Claim
29 words
The process of claim 9 wherein said metal of Group VIA of said hydrocracking catalyst is tungsten and said metal of Group VIII of said hydroCracking catalyst is nickel.
Claim 12
Dependent Claim
25 words
The process of claim 10 wherein said ultrastable, large-pore crystalline aluminosilicate material of said hydrodenitrogenation catalyst is suspended in a porous matrix of said silica-alumina.
Claim 13
Dependent Claim
12 words
The process of claim 11 wherein said process is a single-stage process.
Claim 14
Dependent Claim
25 words
The process of claim 9 wherein said ultrastable, large-pore crystalline aluminosilicate material of said hydrodenitrogenation catalyst is suspended in a porous matrix of said silica-alumina.
Claim 15
Dependent Claim
29 words
The process of claim 13 wherein said metal of Group VIA of said hydrocracking catalyst is tungsten and said metal of Group VIII of said hydrocracking catalyst is nickel.
Claim 16
Dependent Claim
52 words
The process of claim 14 wherein said ultrastable, large-pore crystalline aluminosilicate material of said hydrocracking catalyst is characterized by a maximum cubic unit cell dimension of 24.55 Angstrom units, hydroxyl infrared bands near 3700 cm 1 and near 3625 cm 1, and an alkali metal content of less than 1 weight percent.
Claim 17
Dependent Claim
45 words
The process of claim 15 wherein said ultrastable, large-pore crystalline aluminosilicate material of said hydrodenitrogenation catalyst is present in an amount within the range of about 5 weight percent to about 70 weight percent, based upon the weight of said support of said hydrodenitrogenation catalyst.
Claim 18
Dependent Claim
54 words
The process of claim 16 wherein said nickel and said tungsten of said hydrocracking catalyst are present in a total amount within the range of about 0.03 to about 0.20 gram-mole of NiO and WO3 per 100 grams of catalyst and in a tungsten-to-nickel ratio within the range of about 0.6 to about 12.0.
Claim 19
Dependent Claim
54 words
The process of claim 16 wherein said nickel and said tungsten of said hydrodenitrogenation catalyst are present in a total amount within the range of about 0.03 to about 0.20 gram-mole of NiO and WO3 per 100 grams of catalyst and in a tungsten-to-nickel ratio within the range of about 0.6 to about 12.0.
Claim 20
Dependent Claim
54 words
The process of claim 18 wherein said nickel and said tungsten of said hydrocracking catalyst are present in a total amount within the range of about 0.03 to about 0.20 gram-mole of NiO and WO3 per 100 grams of catalyst and in a tungsten-to-nickel ratio within the range of about 0.6 to about 12.0.
Claim 21
Dependent Claim
141 words
The process of claim 19 wherein said hydrodenitrogenation conditions comprise a hydrogen-to-oil ratio within the range of about 5,000 SCFB to about 40,000 SCFB, a total pressure within the range of about 500 psig to about 5,000 psig, an average catalyst bed temperature within the range of about 400* to about 800*F., and a LHSV within the range of about 0.1 to about 20 volumes of hydrocarbon per hour per volume of catalyst, and said hydrocracking conditions comprise a hydrogen-to-oil ratio within the range of about 5,000 SCFB to about 20,000 SCFB, a total pressure within the range of about 700 psig to about 4,000 psig, an average catalyst bed temperature within the range of about 650* to about 850*F., and a LHSV within the range of about 0.1 to about 10 volumes of hydrocarbon per hour per volume of catalyst.
Claim 22
Dependent Claim
12 words
The process of claim 20 wherein said process is a single-stage process.
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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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |