Patent US3867513A successfully refreshed from Google Patents.
US3867513A
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US
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Method for producing carbon black
Assignee: Phillips Petroleum Co
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Filing: 1970-01-08
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Granted: 1975-02-18
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Expires: 1990-01-08
Abstract
Abstract A method and apparatus for introducing charge oil and a dispersant as a mixture into a carbon black reactor to establish two zones of charge oil at different entrance velocities into the reactor.
Inventors
- 👤 Joseph C Krejci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:49
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; C01; C01P; C01P2006/00; C01P2006/12; C01P2006/19
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
100 words
A METHOD FOR PRODUCING CARBON BLACK IN A REACTOR BY THE PYROLYTIC DECOMPOSITION OF A HYDROCARBON IN THE PRESENCE OF AN OXIDANT AND A FUEL BY BRINGING SAID HYDROCARBON TO ITS CARBON BLACK FORMING TEMPERATURE IN THE PRESENCE OF AN OXIDANT AND A FUEL, AND RECOVERING THE CARBON BLACK FORMED, WHICH COMPRISES INTROUCING SAUD HYDROCARBON INTO SAID REACTOR IN A MULTIPLICITY OF STREAMS, A PLURALITY OF SAID STREAMS BEING INTRODUCED PERIPHERALLY TO AT LEAST ONE CENTRALLY INTRODUCED STREAM, SAID CENTRALLY-INTRODUCED STREAM BEING INTRODUCED AT A VELOCITY OF ABOUT TWO TO ABOUT SIX TIMES THE VELOCITY OF THE PERIPHERALLY INTRODUCED STREAMS.
Claim 2
Independent Claim
100 words
A METHOD FOR PRODUCING CARBON BLACK IN A REACTOR BY THE PYROLYTIC DECOMPOSITION OF A HYDROCARBON IN THE PRESENCE OF AN OXIDANT AND A FUEL BY BRINGING SAID HYDROCARBON TO ITS CARBON BLACK FORMING TEMPERATURE IN THE PRESENCE OF AN OXIDANT AND A FUEL, AND RECOVERING THE CARBON BLACK FORMED, WHICH COMPRISES INTROUCING SAUD HYDROCARBON INTO SAID REACTOR IN A MULTIPLICITY OF STREAMS, A PLURALITY OF SAID STREAMS BEING INTRODUCED PERIPHERALLY TO AT LEAST ONE CENTRALLY INTRODUCED STREAM, SAID CENTRALLY-INTRODUCED STREAM BEING INTRODUCED AT A VELOCITY OF ABOUT TWO TO ABOUT SIX TIMES THE VELOCITY OF THE PERIPHERALLY INTRODUCED STREAMS.
Claim 3
Dependent Claim
17 words
The method as defined in claim 1 in which said streams comprise hydrocarbon and a gaseous dispersant.
Claim 4
Dependent Claim
35 words
The method as defined in claim 2 in which the quantity of said centrally-introduced stream is about 30 to about 80 percent of the total hydrocarbon and gaseous dispersant introduced in said multiplicity of streams.
Claim 5
Dependent Claim
27 words
The method as defined in claim 2 in which said dispersant is present in an amount from about 10 to about 75 scf per gallon of hydrocarbon.
Claim 6
Dependent Claim
61 words
The method as defined in claim 1 in which said streams comprise hydrocarbon and a gaseous dispersant, said dispersant being present in an amount from about 10 to about 75 scf per gallon of hydrocarbon, the quantity of said centrally introduced stream being about 30 to about 80 percent of the total hydrocarbon and dispersant introduced in said multiplicity of streams.
Claim 7
Dependent Claim
51 words
The method of claim 1 in which said reactor is positioned vertically and said oxidant is air, said air and said hydrocarbon being introduced into said reactor at a ratio within the range of from about 250 to about 450 standard cubic feet of said air per gallon of said hydrocarbon.
Claim 8
Dependent Claim
23 words
The method of claim 6 in which said hydrocarbon has a velocity through said reactor of less than about 16 feet per second.
Claim 9
Dependent Claim
38 words
The method of claim 7 in which said hydrocarbon is decomposed at a temperature within the range of from about 2400* to 2500* F. at a pressure within the range of from about 15 to about 30 psia.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |