US4434047A
Expired / Lapsed
US
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Catalytic dewaxing-hydrotreating process
Assignee: BP Corp North America Inc
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Filing: 1981-11-13
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Granted: 1984-02-28
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Expires: 2001-11-13
Abstract
Abstract Process for catalytic dewaxing-hydrotreating of hydrocarbon feed materials comprising contacting the feed with hydrogen under catalytic dewaxing-hydrotreating conditions in the presence of a catalyst comprising a shape selective zeolitic cracking component and a hydrogenating component of improved thermal stability comprising a chromium component, at least one other Group VIB metal component and at least one Group VIII metal component. According to a specific aspect of the invention, the catalytic dewaxing-hydrotreating process is employed to convert hydrocarbon feeds of either high or low quality to lube oil base stocks of high viscosity index, low pour point and good stability in a single step.
Inventors
- 👤 Albert L. Hensley, Jr.
- 👤 Thomas D. Nevitt
- 👤 A. Martin Tait
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:36
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/58; C10G45/60; C10G45/64; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/40; B01J29/42; B01J29/46; B01J29/48; B01J2229/00; B01J2229/30; B01J2229/42
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
70 words
A process for catalytically dewaxing-hydrotreating hydrocarbon feeds comprising contacting the feed with hydrogen under catalytic dewaxing-hydrotreating conditions in the presence of a catalytic composition comprising (1) a hydrogenating component of improved thermal stability comprising a chromium component, at least one other Group VIB metal component and at least one Group VIII metal component deposited on at least a portion of (2) a support comprising a shape selective zeolitic cracking component.
Claim 2
Dependent Claim
70 words
A process for catalytically dewaxing-hydrotreating hydrocarbon feeds comprising contacting the feed with hydrogen under catalytic dewaxing-hydrotreating conditions in the presence of a catalytic composition comprising (1) a hydrogenating component of improved thermal stability comprising a chromium component, at least one other Group VIB metal component and at least one Group VIII metal component deposited on at least a portion of (2) a support comprising a shape selective zeolitic cracking component.
Claim 3
Dependent Claim
48 words
The process of claim 1 wherein catalytic dewaxing-hydrotreating conditions include a temperature of about 650° to about 820° F., hydrogen pressure of about 800 to about 2500 psi, LHSV of about 0.2 to about 2 reciprocal hours and hydrogen addition rate of about 1000 to about 20,000 SCFB.
Claim 4
Dependent Claim
23 words
The process of claim 1 wherein the shape selective zeolitic cracking component is dispersed within a non-zeolitic porous refractory inorganic oxide matrix component.
Claim 5
Dependent Claim
19 words
The process of claim 3 wherein the hydrogenating component is deposed on the dispersion of zeolitic and matrix components.
Claim 6
Dependent Claim
19 words
The process of claim 3 wherein the hydrogenating component is deposed on the matrix component of the zeolite-matrix dispersion.
Claim 7
Dependent Claim
23 words
The process of claim 1 wherein the other Group VIB metal component comprises molybdenum and the Group VIII metal comprises cobalt or nickel.
Claim 8
Dependent Claim
24 words
The process according to any of claims 1-6 wherein the shape selective zeolitic cracking component comprises a crystalline borosilicate zeolite of the AMS type.
Claim 9
Dependent Claim
24 words
The process according to any of claims 1-6 wherein the shape selective zeolitic cracking component comprises a crystalline aluminosilicate zeolite of the ZSM type.
Claim 10
Dependent Claim
111 words
A process for catalytically dewaxing-hydrotreating hydrocarbon feeds having a pour point of at least about 30° F. comprising contacting the feed with hydrogen at about 700° to about 800° F., about 1000 to about 2000 psi hydrogen, about 0.3 to about 2 hour -1 and about 2000 to about 12,000 SCFB hydrogen in the presence of catalyst comprising (1) a hydrogenating component comprising about 1 to about 20 wt.% Cr 2 O 3 , about 1 to about 20 wt.% MoO 3 and about 0.1 to about 10 wt.% CoO or NiO deposited on at least a portion of (2) a support comprising at least one shape selective zeolitic cracking component.
Claim 11
Dependent Claim
111 words
A process for catalytically dewaxing-hydrotreating hydrocarbon feeds having a pour point of at least about 30° F. comprising contacting the feed with hydrogen at about 700° to about 800° F., about 1000 to about 2000 psi hydrogen, about 0.3 to about 2 hour -1 and about 2000 to about 12,000 SCFB hydrogen in the presence of catalyst comprising (1) a hydrogenating component comprising about 1 to about 20 wt.% Cr 2 O 3 , about 1 to about 20 wt.% MoO 3 and about 0.1 to about 10 wt.% CoO or NiO deposited on at least a portion of (2) a support comprising at least one shape selective zeolitic cracking component.
Claim 12
Dependent Claim
139 words
A process for producing lube oil base stocks of high viscosity index, low pour point and good stability consisting essentially of catalytically dewaxing-hydrotreating a hydrocarbon feed having a pour point of about 50° to about 130° F. and containing up to about 12 wt.% sulfur, 1.5 wt.% nitrogen at a temperature of about 700° to about 800° F., hydrogen pressure of about 1000 to about 2000 psi, LHSV of about 0.3 to about 2 reciprocal hours and hydrogen addition rate of about 2000 to about 12,000 SCFB in the presence of a catalyst comprising (1) a hydrogenating component of improved thermal stability comprising a chromium component, at least one other Group VIB metal component and at least one Group VIII metal component deposited on at least a portion of (2) a support comprising a shape selective zeolitic cracking component.
Claim 13
Dependent Claim
139 words
A process for producing lube oil base stocks of high viscosity index, low pour point and good stability consisting essentially of catalytically dewaxing-hydrotreating a hydrocarbon feed having a pour point of about 50° to about 130° F. and containing up to about 12 wt.% sulfur, 1.5 wt.% nitrogen at a temperature of about 700° to about 800° F., hydrogen pressure of about 1000 to about 2000 psi, LHSV of about 0.3 to about 2 reciprocal hours and hydrogen addition rate of about 2000 to about 12,000 SCFB in the presence of a catalyst comprising (1) a hydrogenating component of improved thermal stability comprising a chromium component, at least one other Group VIB metal component and at least one Group VIII metal component deposited on at least a portion of (2) a support comprising a shape selective zeolitic cracking component.
Claim 14
Dependent Claim
22 words
The process of claim 10 wherein the shape selective zeolitic cracking component is dispersed within a porous refractory inorganic oxide matrix component.
Claim 15
Dependent Claim
19 words
The process of claim 11 wherein the hydrogenating component is deposed on the dispersion of zeolitic and matrix components.
Claim 16
Dependent Claim
19 words
The process of claim 11 wherein the hydrogenating component is deposed on the matrix component of the zeolite-matrix dispersion.
Claim 17
Dependent Claim
11 words
The process of claim 11 wherein the matrix component comprises alumina.
Claim 18
Dependent Claim
24 words
The process of claim 10 wherein the other Group VIB metal component comprises molybdenum and the Group VIII metal component comprises cobalt or nickel.
Claim 19
Dependent Claim
23 words
The process of any of claims 10-15 wherein the shape selective zeolitic cracking component comprises a crystalline borosilicate zeolite of the AMS type.
Claim 20
Dependent Claim
19 words
The process of any of claims 10-15 wherein the shape selective zeolitic cracking component comprises crystalline borosilicate zeolite HAMS-1B.
Claim 21
Dependent Claim
150 words
A process for producing lube oil base stocks of high viscosity index, low pour point and good stability comprising contacting a petroleum or synthetic crude oil distillate boiling above about 500° F., having a pour point of about 50° to about 130° F. and containing up to about 12 wt.% sulfur, 1.5 wt.% oxygen and/or 1.5 wt.% nitrogen with hydrogen at about 700° to about 800° F., 1000 to about 2000 psi hydrogen, 0.3 to about 2 reciprocal hours and about 2000 to about 12,000 SCFB hydrogen in the presence of a catalyst comprising (1) a hydrogenating component comprising about 3 to about 12 wt.% Cr 2 O 3 , about 7 to about 18 wt.% MoO 3 and about 0.5 to about 5 wt.% CoO or NiO deposited on at least a portion of (2) a support comprising a shape selective, crystalline borosilicate zeolitic cracking component of the AMS-type.
Claim 22
Dependent Claim
150 words
A process for producing lube oil base stocks of high viscosity index, low pour point and good stability comprising contacting a petroleum or synthetic crude oil distillate boiling above about 500° F., having a pour point of about 50° to about 130° F. and containing up to about 12 wt.% sulfur, 1.5 wt.% oxygen and/or 1.5 wt.% nitrogen with hydrogen at about 700° to about 800° F., 1000 to about 2000 psi hydrogen, 0.3 to about 2 reciprocal hours and about 2000 to about 12,000 SCFB hydrogen in the presence of a catalyst comprising (1) a hydrogenating component comprising about 3 to about 12 wt.% Cr 2 O 3 , about 7 to about 18 wt.% MoO 3 and about 0.5 to about 5 wt.% CoO or NiO deposited on at least a portion of (2) a support comprising a shape selective, crystalline borosilicate zeolitic cracking component of the AMS-type.
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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) | 1987-02-27 | 1987-08-29 | 1988-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-27 | 1991-08-29 | 1992-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-27 | 1995-08-29 | 1996-02-28 | $7700.00 | Window Closed / Lapsed |