US3870623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroconversion process of residuum oils
Assignee: HRI Inc
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Filing: 1973-09-13
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Granted: 1975-03-11
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Expires: 1993-09-13
Abstract
Abstract In processing high metals Venezuelan residuum, higher conversion of the 975*F plus fraction and improved operability can be obtained by maintaining a high catalyst addition rate to obtain reduced metals loading on the catalyst; it being determined that for a macroporous catalyst there is a limiting factor of metals deposition.
Inventors
- 👤 Axel R Johnson
- 👤 Ronald H Wolk
- 👤 Seymour B Alpert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:26
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/14; C10G45/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
183 words
IN A PROCESS FOR THE CONTINUOUS HYDROGENATION OF A LAGUNILLAS VACUUM BOTTOMS HAVING IN EXCESS OF 500 PPM OF METALS FROM THE GROUP OF VANADIUM AND NICKEL WHEREIN THE RESIDUUM AND HYDROGEN ARE PASSED WARDLY THROUGH A REACTION ZONE CONTAINING A MACROPOROUS MICROSPHERICAL PARTICULATE CATALYST BEING CLOSELY SIZED WITHIN THE RANGE OF 60 TO 325 U.S. STANDARD MESH AT A RATE TO PLACE THE MICROSPHERICAL CATALYST IN RANDOM MOTION IN THE LIQUID WITHOUT SUBSTANTIAL CARRYOVER FROM THE REACTION ZONE AND WHEREIN THE OPERATING CONDITIONS ARE WITHIN A PRESSURE RANGE OF 1,000 TO 3,000 PSIG, AND TEMPERATURE RANGE OF 750* TO 850*F AND A LIQUID SPACE VELOCITY OF OF 0.2 TO 2.0 VF/HR/VR SUCH AS A TO MAINTAIN CONVERSION OF AT LEAST 80 PERCENT OF THE PORTION OF THE RESIDUUM BOILING ABOVE 975*F TO MATERIAL BOILING BELOW 975*F WHEREIN THE IMPROVEMENT COMPRISES: ADDING SAID CATALYST TO AND REMOVING SAID CATALYST FROM THE REACTION ZONE AT A RATE WHEREIN 0.2 AND 0.5 POUNDS OF CATALYST PER BARREL OF FEED OIL SUCH THAT THE PRECENT OF VANADIUM ON THE SPENT CATALYST IS LESS THAN 23 PERCENT.
Claim 2
Dependent Claim
183 words
IN A PROCESS FOR THE CONTINUOUS HYDROGENATION OF A LAGUNILLAS VACUUM BOTTOMS HAVING IN EXCESS OF 500 PPM OF METALS FROM THE GROUP OF VANADIUM AND NICKEL WHEREIN THE RESIDUUM AND HYDROGEN ARE PASSED WARDLY THROUGH A REACTION ZONE CONTAINING A MACROPOROUS MICROSPHERICAL PARTICULATE CATALYST BEING CLOSELY SIZED WITHIN THE RANGE OF 60 TO 325 U.S. STANDARD MESH AT A RATE TO PLACE THE MICROSPHERICAL CATALYST IN RANDOM MOTION IN THE LIQUID WITHOUT SUBSTANTIAL CARRYOVER FROM THE REACTION ZONE AND WHEREIN THE OPERATING CONDITIONS ARE WITHIN A PRESSURE RANGE OF 1,000 TO 3,000 PSIG, AND TEMPERATURE RANGE OF 750* TO 850*F AND A LIQUID SPACE VELOCITY OF OF 0.2 TO 2.0 VF/HR/VR SUCH AS A TO MAINTAIN CONVERSION OF AT LEAST 80 PERCENT OF THE PORTION OF THE RESIDUUM BOILING ABOVE 975*F TO MATERIAL BOILING BELOW 975*F WHEREIN THE IMPROVEMENT COMPRISES: ADDING SAID CATALYST TO AND REMOVING SAID CATALYST FROM THE REACTION ZONE AT A RATE WHEREIN 0.2 AND 0.5 POUNDS OF CATALYST PER BARREL OF FEED OIL SUCH THAT THE PRECENT OF VANADIUM ON THE SPENT CATALYST IS LESS THAN 23 PERCENT.
Claim 3
Dependent Claim
182 words
In a process for the continuous hydrogenation of a Lagunillas vacuum bottoms having in excess of 500 ppm of metals from the group of vanadium and nickel wherein the residuum and hydrogen are passed upwardly through a reaction zone containing a macroporous microspherical particulate catalyst being closely sized within the range of 60 to 325 U.S. Standard mesh at a rate to place the microspherical catalyst in random motion in the liquid without substantial carryover from the reaction zone and wherein the operating conditions are within a pressure range of 1,000 to 3,000 PSIG, and a temperature range of 750* to 850*F and a liquid space velocity of 0.2 to 2.0 Vf/hr/Vr such as to maintain conversion of at least 80 percent of the portion of the resIduum boiling above 975*F to material boiling below 975*F wherein the improvement comprises: adding said catalyst to and removing said catalyst from the reaction zone at a rate between 0.2 and 0.5 pounds of catalyst per barrel of feed oil such that the percent of vanadium on the spent catalyst is less than 23 percent.
Claim 4
Dependent Claim
182 words
In a process for the continuous hydrogenation of a Lagunillas vacuum bottoms having in excess of 500 ppm of metals from the group of vanadium and nickel wherein the residuum and hydrogen are passed upwardly through a reaction zone containing a macroporous microspherical particulate catalyst being closely sized within the range of 60 to 325 U.S. Standard mesh at a rate to place the microspherical catalyst in random motion in the liquid without substantial carryover from the reaction zone and wherein the operating conditions are within a pressure range of 1,000 to 3,000 PSIG, and a temperature range of 750* to 850*F and a liquid space velocity of 0.2 to 2.0 Vf/hr/Vr such as to maintain conversion of at least 80 percent of the portion of the resIduum boiling above 975*F to material boiling below 975*F wherein the improvement comprises: adding said catalyst to and removing said catalyst from the reaction zone at a rate between 0.2 and 0.5 pounds of catalyst per barrel of feed oil such that the percent of vanadium on the spent catalyst is less than 23 percent.
References Cited (Backward Citations)
US3183179A
Cited
US3321393A
Cited
US3553106A
Cited
US3547809A
Cited
US3622500A
Cited
US3819509A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |