Patent US2956631A successfully refreshed from Google Patents.
Patent US3844932A successfully refreshed from Google Patents.
US3844932A
Expired / Lapsed
US
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Process for treating by-product heavy fractions formed in the production of olefins
Assignee: Individual
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Filing: 1972-05-19
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Granted: 1974-10-29
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Expires: 1992-05-19
Abstract
Abstract A process for obtaining improved hydrocarbon oil products by treating by-product heavy fractions, formed in the production of olefins and having initial boiling point of above 160*C and a 75 percent distill-off point of below 450*C, with hydrogen at a temperature of from 40* to 200*C and a pressure of from 5 to 300 kg/cm2 G using a nickel-containing catalyst which has been pretreated with organic sulfur compounds, to thereby impart thermal stability to the oil, then subjecting the resulting oil to a hydrorefining followed by hydrogenation is disclosed.
Inventors
- 👤 K Uemoto
- 👤 H Kuribayashi
- 👤 S Gomi
- 👤 M Takahashi
- 👤 T Ishiguro
- 👤 A Okagami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:10
CPC Classifications
C; C10; C10G; C10G69/00; C10G69/02; C10G69/12; C10G69/123; C10G45/00; C10G45/32; C10G45/34; C10G45/36; C10G65/00; C10G65/02; C10G65/04; C10G65/08
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
54 words
A PROCESS FOR THE PREPARATION OF HYDROCARBON OILS OF IMPROVED QUALITY BY TREATMENT OF BY-PRODUCT HEAVY FRACTIONS HAVING AN INITIAL BOILING POINT OF ABOVE 160*C AND A 75 PERCENT DISTILL-OFF POINT OF BELOW 450*C AND OBTAINED IN THE PRODUCTION OF GASEOUS OLEFINS BY THE THERMAL CRACKING OF HYDROCARBONS AT TEMPERATURES ABOVE 700*C WHICH COMPRISES:
Claim 2
Dependent Claim
54 words
A PROCESS FOR THE PREPARATION OF HYDROCARBON OILS OF IMPROVED QUALITY BY TREATMENT OF BY-PRODUCT HEAVY FRACTIONS HAVING AN INITIAL BOILING POINT OF ABOVE 160*C AND A 75 PERCENT DISTILL-OFF POINT OF BELOW 450*C AND OBTAINED IN THE PRODUCTION OF GASEOUS OLEFINS BY THE THERMAL CRACKING OF HYDROCARBONS AT TEMPERATURES ABOVE 700*C WHICH COMPRISES:
Claim 3
Dependent Claim
103 words
IMPARTING THERMAL STABILITY TO SAID BY-PRODUCT HEAVY FRACTIONS BY TREATING SAID FRACTIONS WITH HYDROGEN AT A TEMPERATURE OF FROM 40* TO 200*C, A PRESSURE OF FROM 5 TO 300 KG/CM2G AND A LIQUID RESIDENCE TIME OF FROM 0.1 TO 5.0 HOURS IN THE PRESENCE OF A METALLIC NICKEL-CONTAINING CATALYST, CONTAINING AT LEAST 1 PERCENT BY WEIGHT OF REDUCED NICKEL AND NOT MORE THAN 10 PERCENT BY WEIGHT, BASED ON THE NICKEL, OF A PROMOTER CONSISTING OF COPPER AND CHROMIUM, SAID CATALYST BEING PREPARED BY TREATMENT WITH ORGANIC SULFUR COMPOUNDS CONSISTING EXCLUSIVELY OF CARBON, HYDROGEN AND SULFUR ATOMS TO OBTAIN THERMALLY STABILIZED HEAVY FRACTIONS,
Claim 4
Dependent Claim
103 words
IMPARTING THERMAL STABILITY TO SAID BY-PRODUCT HEAVY FRACTIONS BY TREATING SAID FRACTIONS WITH HYDROGEN AT A TEMPERATURE OF FROM 40* TO 200*C, A PRESSURE OF FROM 5 TO 300 KG/CM2G AND A LIQUID RESIDENCE TIME OF FROM 0.1 TO 5.0 HOURS IN THE PRESENCE OF A METALLIC NICKEL-CONTAINING CATALYST, CONTAINING AT LEAST 1 PERCENT BY WEIGHT OF REDUCED NICKEL AND NOT MORE THAN 10 PERCENT BY WEIGHT, BASED ON THE NICKEL, OF A PROMOTER CONSISTING OF COPPER AND CHROMIUM, SAID CATALYST BEING PREPARED BY TREATMENT WITH ORGANIC SULFUR COMPOUNDS CONSISTING EXCLUSIVELY OF CARBON, HYDROGEN AND SULFUR ATOMS TO OBTAIN THERMALLY STABILIZED HEAVY FRACTIONS,
Claim 5
Dependent Claim
61 words
HYDROREFINING THE THERMALLY STABILIZED HEAVY FRACTIONS AT A TEMPERATURE OF FROM 250* TO 450*C, A PRESSURE OF FROM 5 TO 300 KG/CM2G AND A LIQUID RESIDENCE TIME OF FROM 0.1 TO 5.0 HOURS IN THE PRESENCE OF A CATALYST CONTAINING AT LEAST TWO COMPONENTS SELECTED FROM THE GROUP CONSISTING OF COBALT, MOLYBDENUM, TUNGSTEN AND NICKEL TO CAUSE DESULFURIZATION AND DENITROGENATION, AND
Claim 6
Dependent Claim
61 words
HYDROREFINING THE THERMALLY STABILIZED HEAVY FRACTIONS AT A TEMPERATURE OF FROM 250* TO 450*C, A PRESSURE OF FROM 5 TO 300 KG/CM2G AND A LIQUID RESIDENCE TIME OF FROM 0.1 TO 5.0 HOURS IN THE PRESENCE OF A CATALYST CONTAINING AT LEAST TWO COMPONENTS SELECTED FROM THE GROUP CONSISTING OF COBALT, MOLYBDENUM, TUNGSTEN AND NICKEL TO CAUSE DESULFURIZATION AND DENITROGENATION, AND
Claim 7
Dependent Claim
62 words
hydrorefining the thermally stabilized heavy fractions at a temperature of from 250* to 450* C, a pressure of from 5 to 300 Kg/cm2G and a liquid residence time of from 0.1 to 5.0 hours in the presence of a catalyst containing at least two components selected from the group consisting of cobalt, molybdenum, tungsten and nickel to cause desulfurization and denitrogenation, and
Claim 8
Dependent Claim
62 words
hydrorefining the thermally stabilized heavy fractions at a temperature of from 250* to 450* C, a pressure of from 5 to 300 Kg/cm2G and a liquid residence time of from 0.1 to 5.0 hours in the presence of a catalyst containing at least two components selected from the group consisting of cobalt, molybdenum, tungsten and nickel to cause desulfurization and denitrogenation, and
Claim 9
Dependent Claim
42 words
reacting the hydrorefined material with hydrogen at a temperature of from 100* to 400* C, a pressure of from 10 to 300 Kg/cm2G and a liquid residence time of from 0.1 to 5.0 hours in the presence of a solid hydrogenating catalyst.
Claim 10
Dependent Claim
42 words
reacting the hydrorefined material with hydrogen at a temperature of from 100* to 400* C, a pressure of from 10 to 300 Kg/cm2G and a liquid residence time of from 0.1 to 5.0 hours in the presence of a solid hydrogenating catalyst.
Claim 11
Dependent Claim
41 words
REACTING THE HYDROREFINED MATERIAL WITH HYDROGEN AT A TEMPERATURE OF FROM 100* TO 400*C, A PRESSURE OF FROM 10 TO 300 KG/CM2G AND A LIQUID RESIDENCE TIME OF FROM 0.1 TO 5.0 HOURS IN THE PRESENCE OF A SOLID HYDROGENATING CATALYST.
Claim 12
Dependent Claim
41 words
REACTING THE HYDROREFINED MATERIAL WITH HYDROGEN AT A TEMPERATURE OF FROM 100* TO 400*C, A PRESSURE OF FROM 10 TO 300 KG/CM2G AND A LIQUID RESIDENCE TIME OF FROM 0.1 TO 5.0 HOURS IN THE PRESENCE OF A SOLID HYDROGENATING CATALYST.
References Cited (Backward Citations)
US3600298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |