US4297242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for demetallation and desulfurization of heavy hydrocarbons
Assignee: BP Corp North America Inc
•
Filing: 1980-07-14
•
Granted: 1981-10-27
•
Expires: 2000-07-14
Abstract
Abstract Disclosed is a two-stage catalytic process for hydrodemetallation and hydrodesulfurization of heavy hydrocarbon streams containing asphaltenes and a substantial amount of metals. The first stage of this process comprises contacting the feedstock in a first reaction zone with hydrogen and a demetallation catalyst comprising hydrogenation metal selected from Group VIB and/or Group VIII deposed on a large-pore, high surface area inorganic oxide support; the second stage of the process comprises contacting the effluent from the first reaction zone with a catalyst consisting essentially of hydrogenation metal selected from Group VIB deposed on a smaller-pore, catalytically active support comprising alumina, said second-stage catalyst having a surface area within the range of about 150 m 2 /gm to about 300 m 2 /gm, having a majority of its pore volume in pore diameters within the range of about 80 A to about 130 A, and the catalyst has a pore volume within the range of about 0.4 cc/gm to about 0.9 cc/gm.
Inventors
- 👤 Albert L. Hensley, Jr.
- 👤 Leonard M. Quick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:51
CPC Classifications
B; B01; B01J; B01J35/00; B01J35/60; B01J23/00; B01J23/16; B01J23/24; B01J23/28; B01J21/00; B01J21/02; B01J21/04; B01J35/61; B01J35/615; B01J35/63; B01J35/635; B01J35/64; B01J35/647; B01J35/66; C; C10; C10G; C10G2300/00; C10G2300/10; C10G2300/107
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
106 words
A hydrodesulfurization catalyst consisting essentially of at least one active original hydrogenation metal selected from Group VIB deposed on a catalytically active support comprising alumina, said Group VIB metal being in at least one form selected from the group consisting of the elemental form, the oxide, and the sulfide, said catalyst having a surface area within the range of about 150 m 2 /gm to about 300 m 2 /gm, having a majority of its pore volume in pore diameters within the range of about 80 A to about 130 A, and a pore volume within the range of about 0.4 cc/gm to about 0.9 cc/gm.
Claim 2
Dependent Claim
106 words
A hydrodesulfurization catalyst consisting essentially of at least one active original hydrogenation metal selected from Group VIB deposed on a catalytically active support comprising alumina, said Group VIB metal being in at least one form selected from the group consisting of the elemental form, the oxide, and the sulfide, said catalyst having a surface area within the range of about 150 m 2 /gm to about 300 m 2 /gm, having a majority of its pore volume in pore diameters within the range of about 80 A to about 130 A, and a pore volume within the range of about 0.4 cc/gm to about 0.9 cc/gm.
Claim 3
Dependent Claim
57 words
The catalyst of claim 1, wherein said catalyst possesses a pore volume within the range of about 0.5 cc/gm to about 0.7 cc/gm, a surface area within the range of about 150 m 2 /gm to about 250 m 2 /gm, and an average pore diameter within the range of about 110 A to about 140 A.
Claim 4
Dependent Claim
34 words
The catalyst of claim 2, wherein the pore volume of said catalyst comprises the following distribution: ______________________________________
Pore Diameters, A
% of Pore Volume
______________________________________
50-80 <40
80-100 15-65
100-130 10-50
130+ <15
______________________________________
Claim 5
Dependent Claim
30 words
The catalyst of claim 3, wherein the pores of said catalyst having diameters 80-130 A contain about 90 m 2 /gm to about 180 m 2 /gm of surface area.
Claim 6
Dependent Claim
34 words
The catalyst of claim 2, wherein the pore volume of said catalyst comprises the following distribution: ______________________________________
Pore Diameters, A
% of Pore Volume
______________________________________
50-80 <40
80-100 25-65
100-130 10-50
130+ <5
______________________________________
Claim 7
Dependent Claim
30 words
The catalyst of claim 5, wherein the pores of said catalyst having diameters 80-130 A contain about 115 m 2 /gm to about 180 m 2 /gm of surface area.
Claim 8
Dependent Claim
12 words
The catalyst of claim 1, wherein the Group VIB metal is molybdenum.
Claim 9
Dependent Claim
37 words
The catalyst of claim 7, wherein the amount of molybdenum present in said catalyst is within the range of about 8 wt.% to about 12 wt.%, calculated as MoO 3 and based upon the total catalyst weight.
Claim 10
Dependent Claim
13 words
The catalyst of claim 1, wherein the catalyst support consists essentially of alumina.
Claim 11
Dependent Claim
102 words
A hydrodesulfurization catalyst consisting essentially of molybdenum as the single active original hydrogenation metal deposed on a catalytically active support comprising alumina and said molybdenum being in at least one form selected from the group consisting of the elemental form, the oxide, and the sulfide, said catalyst having a surface area within the range of about 150 m 2 /gm to about 300 m 2 /gm, having a majority of its pore volume in pore diameters within the range of about 80 A to about 130 A, and a pore volume within the range of about 0.4 cc/gm to about 0.9 cc/gm.
Claim 12
Dependent Claim
102 words
A hydrodesulfurization catalyst consisting essentially of molybdenum as the single active original hydrogenation metal deposed on a catalytically active support comprising alumina and said molybdenum being in at least one form selected from the group consisting of the elemental form, the oxide, and the sulfide, said catalyst having a surface area within the range of about 150 m 2 /gm to about 300 m 2 /gm, having a majority of its pore volume in pore diameters within the range of about 80 A to about 130 A, and a pore volume within the range of about 0.4 cc/gm to about 0.9 cc/gm.
Claim 13
Dependent Claim
57 words
The catalyst of claim 10, wherein said catalyst possesses a pore volume within the range of about 0.5 cc/gm to about 0.7 cc/gm, a surface area within the range of about 150 m 2 /gm to about 250 m 2 /gm, and an average pore diameter within the range of about 110 A to about 140 A.
Claim 14
Dependent Claim
34 words
The catalyst of claim 11, wherein the pore volume of said catalyst comprises the following distribution: ______________________________________
Pore Diameters, A
% of Pore Volume
______________________________________
50-80 <40
80-100 25-65
100-130 10-50
130+ <5
______________________________________
Claim 15
Dependent Claim
30 words
The catalyst of claim 12, wherein the pores of said catalyst having diameters 80-130 A contain about 115 m 2 /gm to about 180 m 2 /gm of surface area.
Claim 16
Dependent Claim
37 words
The catalyst of claim 13, wherein the amount of molybdenum present in said catalyst is within the range of about 8 wt.% to about 12 wt.%, calculated as MoO 3 and based upon the total catalyst weight.
Claim 17
Dependent Claim
13 words
The catalyst of claim 14, wherein the catalyst support consists essentially of alumina.
References Cited (Backward Citations)
US2408724A
Cited
US1908338A
Cited
US2378210A
Cited
US2454724A
Cited
US2463072A
Cited
US2423163A
Cited
US3180820A
Cited
US3694351A
Cited
US3730879A
Cited
US3714032A
Cited
US3803207A
Cited
US3898155A
Cited
US3977961A
Cited
US3985684A
Cited
US4014821A
Cited
US4016067A
Cited
US4054508A
Cited
US4051021A
Cited
US4073718A
Cited
US4188284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-10-26 | 1985-04-27 | 1985-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-26 | 1989-04-27 | 1989-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-26 | 1993-04-27 | 1993-10-27 | $7700.00 | Window Closed / Lapsed |