US4191635A
Expired / Lapsed
US
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Process for the cracking of heavy hydrocarbon streams
Assignee: BP Corp North America Inc
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Filing: 1978-12-07
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Granted: 1980-03-04
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Expires: 1998-12-07
Abstract
Abstract A heavy hydrocarbon stream containing metals, asphaltenes, nitrogen compounds, and sulfur compounds is (a) contacted with hydrogen and a hydrotreating catalyst containing molybdenum and chromium, either as metals, as oxides, as sulfides, or mixtures thereof, deposed on a large-pore, catalytically active alumina to reduce the metals content in said stream, to convert the asphaltenes, nitrogen compounds, and sulphur compounds in said stream, the catalyst has a pore volume within the range of about 0.4 cc/gm to about 0.8 cc/gm, a surface area within the range of about 150 m 2 /gm to about 300 m 2 /gm, and an average pore diameter within the range of about 100 A (10 nm) to about 200 A (20 nm); and (b) at least a portion of the hydrotreated stream is cracked with a cracking catalyst to produce gasoline and distillates in improved yields. The catalyst in step (a) may also contain cobalt.
Inventors
- 👤 Leonard M. Quick
- 👤 Albert L. Hensley, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:47
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/887; B01J23/8878; B01J23/16; B01J23/24; B01J23/28; B01J35/00; B01J35/60; C; C10; C10G; C10G69/00; C10G69/02; C10G69/04; B01J35/61; B01J35/615; B01J35/63; B01J35/635; B01J35/64; B01J35/647; B01J35/66; B01J35/67; C10G2300/00; C10G2300/10; C10G2300/107
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
191 words
A process for hydrotreating and cracking a heavy hydrocarbon stream containing metals, asphaltenes, nitrogen compounds, and sulfur compounds, which process comprises: (a) contacting said stream in a hydrotreating zone under hydrotreating conditions and in the presence of hydrogen with a hydrotreating catalyst comprising molybdenum and chromium, said molybdenum and chromium being present in the elemental form, as oxides, as sulfides, or mixtures thereof, deposed on a large-pore, catalytically active alumina to reduce the metals content in said stream, to convert the asphaltenes, nitrogen compounds, and sulphur compounds in said stream, and to provide a hydrotreated product stream, said hydrotreating catalyst possessing a pore volume within the range of about 0.4 cc/gm to about 0.8 cc/gm, a surface area within the range of about 150 m 2 /gm to about 300 m 2 /gm, and an average pore diameter within the range of about 100 A (10 nm) to about 200 A (20 nm); and (b) catalytically cracking at least a portion of said hydrotreated product stream in a catalytic cracking zone under catalytic cracking conditions and in the presence of a cracking catalyst to produce gasoline and distillates in improved yields.
Claim 2
Dependent Claim
191 words
A process for hydrotreating and cracking a heavy hydrocarbon stream containing metals, asphaltenes, nitrogen compounds, and sulfur compounds, which process comprises: (a) contacting said stream in a hydrotreating zone under hydrotreating conditions and in the presence of hydrogen with a hydrotreating catalyst comprising molybdenum and chromium, said molybdenum and chromium being present in the elemental form, as oxides, as sulfides, or mixtures thereof, deposed on a large-pore, catalytically active alumina to reduce the metals content in said stream, to convert the asphaltenes, nitrogen compounds, and sulphur compounds in said stream, and to provide a hydrotreated product stream, said hydrotreating catalyst possessing a pore volume within the range of about 0.4 cc/gm to about 0.8 cc/gm, a surface area within the range of about 150 m 2 /gm to about 300 m 2 /gm, and an average pore diameter within the range of about 100 A (10 nm) to about 200 A (20 nm); and (b) catalytically cracking at least a portion of said hydrotreated product stream in a catalytic cracking zone under catalytic cracking conditions and in the presence of a cracking catalyst to produce gasoline and distillates in improved yields.
Claim 3
Dependent Claim
33 words
The process of claim 1, wherein said portion of said hydrotreated product stream is blended with a gas oil to form a blend prior to being catalytically cracked in said catalytic cracking zone.
Claim 4
Dependent Claim
69 words
The process of claim 1, wherein said molybdenum is present in an amount within the range of about 5 wt.% to about 15 wt.%, calculated as MoO 3 and based upon the total hydrotreating catalyst weight, and said chromium is present in an amount within the range of about 5 wt.% to about 20 wt.%, calculated as Cr 2 O 3 and based upon the total hydrotreating catalyst weight.
Claim 5
Dependent Claim
103 words
The process of claim 1, wherein said hydrotreating catalyst has about 0% to about 10% of its pore volume in pores having diameters that are smaller than 50 A (5 nm), about 30% to about 80% of its pore volume in pores having diameters of about 50 A (5 nm) to about 100 A (10 nm), about 10% to about 50% of its pore volume in pores having diameters of about 100 A (10 nm) to about 150 A (15 nm), and about 0% to about 10% of its pore volume in pores having diameters that are larger than 150 A (15 nm).
Claim 6
Dependent Claim
11 words
The process of claim 1, wherein said hydrotreating catalyst includes cobalt.
Claim 7
Dependent Claim
41 words
The process of claim 1, which process includes contacting said stream in a demetallization zone under demetallization conditions and in the presence of hydrogen with a demetallization catalyst prior to contacting said stream in said hydrotreating zone with said hydrotreating catalyst.
Claim 8
Dependent Claim
110 words
The process of claim 1, wherein said hydrotreating conditions comprise a hydrogen partial pressure within the range of about 1,000 psia (6.9 MPa) to about 3,000 psia (20.7 MPa), an average catalyst bed temperature within the range of about 700° F. (371° C.) to about 820° F. (438° C.), an LHSV within the range of about 0.1 volume of hydrocarbon per hour per volume of catalyst to about 3 volumes of hydrocarbon per hour per volume of catalyst, and a hydrogen recycle rate or hydrogen addition rate within the range of about 2,000 SCFB (356 m 3 /m 3 ) to about 15,000 SCFB (2,672 m 3 /m 3 ).
Claim 9
Dependent Claim
110 words
The process of claim 2, wherein said hydrotreating conditions comprise a hydrogen partial pressure within the range of about 1,000 psia (6.9 MPa) to about 3,000 psia (20.7 MPa), an average catalyst bed temperature within the range of about 700° F. (371° C.) to about 820° F. (438° C.), an LHSV within the range of about 0.1 volume of hydrocarbon per hour per volume of catalyst to about 3 volumes of hydrocarbon per hour per volume of catalyst, and a hydrogen recycle rate or hydrogen addition rate within the range of about 2,000 SCFB (356 m 3 /m 3 ) to about 15,000 SCFB (2,672 m 3 /m 3 ).
Claim 10
Dependent Claim
33 words
The process of claim 3, wherein said portion of said hydrotreated product stream is blended with a gas oil to form a blend prior to being catalytically cracked in said catalytic cracking zone.
Claim 11
Dependent Claim
41 words
The process of claim 3, which process includes contacting said stream in a demetallization zone under demetallization conditions and in the presence of hydrogen with a demetallization catalyst prior to contacting said stream in said hydrotreating zone with said hydrotreating catalyst.
Claim 12
Dependent Claim
110 words
The process of claim 3, wherein said hydrotreating conditions comprise a hydrogen partial pressure within the range of about 1,000 psia (6.9 MPa) to about 3,000 psia (20.7 MPa), an average catalyst bed temperature within the range of about 700° F. (371° C.) to about 820° F. (438° C.), a LHSV within the range of about 0.1 volume of hydrocarbon per hour per volume of catalyst to about 3 volumes of hydrocarbon per hour per volume of catalyst, and a hydrogen recycle rate or hydrogen addition rate within the range of about 2,000 SCFB (356 m 3 /m 3 ) to about 15,000 SCFB (2,672 m 3 /m 3 ).
Claim 13
Dependent Claim
69 words
The process of claim 4, wherein said molybdenum is present in an amount within the range of about 5 wt.% to about 15 wt.% calculated as MoO 3 and based upon the total hydrotreating catalyst weight, and said chromium is present in an amount within the range of about 5 wt.% to about 20 wt.%, calculated as Cr 2 O 3 and based upon the total hydrotreating catalyst weight.
Claim 14
Dependent Claim
41 words
The process of claim 4, which process includes contacting said stream in a demetallization zone under demetallization conditions and in the presence of hydrogen with a demetallization catalyst prior to contacting said stream in said hydrotreating zone with said hydrotreating catalyst.
Claim 15
Dependent Claim
33 words
The process of claim 4, wherein said portion of said hydrotreated product stream is blended with a gas oil to form a blend prior to being catalytically cracked in said catalytic cracking zone.
Claim 16
Dependent Claim
98 words
The process of claim 5, wherein said cobalt is present in an amount within the range of about 0.1 wt.% to about 5 wt.%, calculated as CoO and based upon the total hydrotreating catalyst weight, said molybdenum is present in an amount within the range of about 5 wt.% to about 15 wt.%, calculated as MoO 3 and based upon the total hydrotreating catalyst weight, and said chromium is present in an amount within the range of about 5 wt.% to about 20 wt.%, calculated as Cr 2 O 3 and based upon the total hydrotreating catalyst weight.
Claim 17
Dependent Claim
103 words
The process of claim 5, wherein said hydrotreating catalyst has about 0% to about 10% of its pore volume in pores having diameters that are smaller than 50 A (5 nm), about 30% to about 80% of its pore volume in pores having diameters of about 50 A (5 nm) to about 100 A (10 nm), about 10% to about 50% of its pore volume in pores having diameters of about 100 A (10 nm) to about 150 A (15 nm), and about 0% to about 10% of its pore volume in pores having diameters that are larger than 150 A (15 nm).
Claim 18
Dependent Claim
110 words
The process of claim 5, wherein said hydrotreating conditions comprise a hydrogen partial pressure within the range of about 1,000 psia (6.9 MPa) to about 3,000 psia (20.7 MPa), an average catalyst bed temperature within the range of about 700° F. (371° C.) to about 820° F. (438° C.), an LHSV within the range of about 0.1 volume of hydrocarbon per hour per volume of catalyst to about 3 volumes of hydrocarbon per hour per volume of catalyst, and a hydrogen recycle rate or hydrogen addition rate within the range of about 2,000 SCFB (356 m 3 /m 3 ) to about 15,000 SCFB (2,672 m 3 /m 3 ).
Claim 19
Dependent Claim
110 words
The process of claim 9, wherein said hydrotreating conditions comprise a hydrogen partial pressure within the range of about 1,000 psia (6.9 MPa) to about 3,000 psia (20.7 MPa), an average catalyst bed temperature within the range of about 700° F. (371° C.) to about 820° F. (438° C.), an LHSV within the range of about 0.1 volume of hydrocarbon per hour per volume of catalyst to about 3 volumes of hydrocarbon per hour per volume of catalyst, and a hydrogen recycle rate or hydrogen addition rate within the range of about 2,000 SCFB (356 m 3 /m 3 ) to about 15,000 SCFB (2,672 m 3 /m 3 ).
Claim 20
Dependent Claim
33 words
The process of claim 10, wherein said portion of said hydrotreated product stream is blended with a gas oil to form a blend prior to being catalytically cracked in said catalytic cracking zone.
Claim 21
Dependent Claim
33 words
The process of claim 12, wherein said portion of said hydrotreated product stream is blended with a gas oil to form a blend prior to being catalytically cracked in said catalytic cracking zone.
Claim 22
Dependent Claim
41 words
The process of claim 12, which process includes contacting said stream in a demetallization zone under demetallization conditions and in the presence of hydrogen with a demetallization catalyst prior to contacting said stream in said hydrotreating zone with said hydrotreating catalyst.
Claim 23
Dependent Claim
33 words
The process of claim 13, wherein said portion of said hydrotreated product stream is blended with a gas oil to form a blend prior to being catalytically cracked in said catalytic cracking zone.
Claim 24
Dependent Claim
33 words
The process of claim 15, wherein said portion of said hydrotreated product stream is blended with a gas oil to form a blend prior to being catalytically cracked in said catalytic cracking zone.
Claim 25
Dependent Claim
41 words
The process of claim 15, which process includes contacting said stream in a demetallization zone under demetallization conditions and in the presence of hydrogen with a demetallization catalyst prior to contacting said stream in said hydrotreating zone with said hydrotreating catalyst.
Claim 26
Dependent Claim
110 words
The process of claim 15, wherein said hydrotreating conditions comprise a hydrogen partial pressure within the range of about 1,000 psia (6.9 MPa) to about 3,000 psia (20.7 MPa), an average catalyst bed temperature within the range of about 700° F. (371° C.) to about 820° F. (438° C.), an LHSV within the range of about 0.1 volume of hydrocarbon per hour per volume of catalyst to about 3 volumes of hydrocarbon per hour per volume of catalyst, and a hydrogen recycle rate or hydrogen addition rate within the range of about 2,000 SCFB (356 m 3 /m 3 ) to about 15,000 SCFB (2,672 m 3 /m 3 ).
Claim 27
Dependent Claim
98 words
The process of claim 16, wherein said cobalt is present in an amount within the range of about 0.1 wt.% to about 5 wt.%, calculated as CoO and based upon the total hydrotreating catalyst weight, said molybdenum is present in an amount within the range of about 5 wt.% to about 15 wt.%, calculated as MoO 3 and based upon the total hydrotreating catalyst weight, and said chromium is present in an amount within the range of about 5 wt.% to about 20 wt.%, calculated as Cr 2 O 3 and based upon the total hydrotreating catalyst weight.
Claim 28
Dependent Claim
41 words
The process of claim 16, which process includes contacting said stream in a demetallization zone under demetallization conditions and in the presence of hydrogen with a demetallization catalyst prior to contacting said stream in said hydrotreating zone with said hydrotreating catalyst.
Claim 29
Dependent Claim
33 words
The process of claim 16, wherein said portion of said hydrotreated product stream is blended with a gas oil to form a blend prior to being catalytically cracked in said catalytic cracking zone.
Claim 30
Dependent Claim
33 words
The process of claim 21, wherein said portion of said hydrotreated product stream is blended with a gas oil to form a blend prior to being catalytically cracked in said catalytic cracking zone.
Claim 31
Dependent Claim
33 words
The process of claim 26, wherein said portion of said hydrotreated product stream is blended with a gas oil to form a blend prior to being catalytically cracked in said catalytic cracking zone.
Claim 32
Dependent Claim
41 words
The process of claim 26, which process includes contacting said stream in a demetallization zone under demetallization conditions and in the presence of hydrogen with a demetallization catalyst prior to contacting said stream in said hydrotreating zone with said hydrotreating catalyst.
Claim 33
Dependent Claim
110 words
The process of claim 26, wherein said hydrotreating conditions comprise a hydrogen partial pressure within the range of about 1,000 psia (6.9 MPa) to about 3,000 psia (20.7 MPa), an average catalyst bed temperature within the range of about 700° F. (371° C.) to about 820° F. (438° C.), an LHSV within the range of about 0.1 volume of hydrocarbon per hour per volume of catalyst to about 3 volumes of hydrocarbon per hour per volume of catalyst, and a hydrogen recycle rate or hydrogen addition rate within the range of about 2,000 SCFB (356 m 3 /m 3 ) to about 15,000 SCFB (2,672 m 3 /m 3 ).
Claim 34
Dependent Claim
33 words
The process of claim 27, wherein said portion of said hydrotreated product stream is blended with a gas oil to form a blend prior to being catalytically cracked in said catalytic cracking zone.
Claim 35
Dependent Claim
110 words
The process of claim 30, wherein said hydrotreating conditions comprise a hydrogen partial pressure within the range of about 1,000 psia (6.9 MPa) to about 3,000 psia (20.7 MPa), an average catalyst bed temperature within the range of about 700° F. (371° C.) to about 820° F. (438° C.), an LHSV within the range of about 0.1 volume of hydrocarbon per hour per volume of catalyst to about 3 volumes of hydrocarbon per hour per volume of catalyst, and a hydrogen recycle rate or hydrogen addition rate within the range of about 2,000 SCFB (356 m 3 /m 3 ) to about 15,000 SCFB (2,672 m 3 /m 3 ).
Claim 36
Dependent Claim
33 words
The process of claim 31, wherein said portion of said hydrotreated product stream is blended with a gas oil to form a blend prior to being catalytically cracked in said catalytic cracking zone.
References Cited (Backward Citations)
US2577823A
Cited
US3114701A
Cited
US3245919A
Cited
US3265615A
Cited
US3340180A
Cited
US3393148A
Cited
US3700586A
Cited
GB1367243A
Cited
US4066574A
Cited
US3977961A
Cited
US3956105A
Cited
FR2281972A1
Cited
US4008149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-04 | 1983-09-03 | 1984-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-04 | 1987-09-03 | 1988-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-04 | 1991-09-03 | 1992-03-04 | $7700.00 | Window Closed / Lapsed |