US2892684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for carbon black production
Assignee: Phillips Petroleum Co
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Filing: 1956-04-09
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Granted: 1959-06-30
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Expires: 1976-04-09
Abstract
No abstract record available.
Inventors
- 👤 William R King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:02
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; Y; Y10; Y10T; Y10T436/00; Y10T436/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
123 words
A METHOD OF CONTROLLING THE PHOTELOMETER OF THE CARBON BLACK PRODUCT FROM A CARBON BLACK REACTOR IN WHICH A FEED STREAM OF FREE-OXYGEN-CONTAINING GAS AND A FEED STREAM OF HYDROCARBON ARE REACTED TO PARTIALLY OXIDIZE SAID HYDROCARBON, WHICH COMPRISES BURNING THE COMBUSTIBLE GASES IN A SAMPLE EFFUENT PRODUCT STREAM FROM SAID REACTOR IN A COMBUSTION ZONE WITH A STREAM OF FREE-OXYGEN-CONTAINING GAS FLOWING AT RATES VARYING FROM LESS THAN, TO MORE THAN, THAT REQUIRED TO BURN ALL OF SAID COMBUSTIBLE GASES AND REPEATING THE CYCLE OF VARIATION TO OBTAIN A SERIES OF MAXIMUM TEMPERATURES IN THE COMBUSTION ZONE, AND CONTROLLING THE RATIO OF OXYGEN TO HYDROCARBON FEED TO SAID REACTOR TO CONTROL SAID MAXIMUM TEMPERATURES AND THEREBY THE PHOTELOMETER OF SAID CARBON BLACK.
Claim 2
Independent Claim
123 words
A METHOD OF CONTROLLING THE PHOTELOMETER OF THE CARBON BLACK PRODUCT FROM A CARBON BLACK REACTOR IN WHICH A FEED STREAM OF FREE-OXYGEN-CONTAINING GAS AND A FEED STREAM OF HYDROCARBON ARE REACTED TO PARTIALLY OXIDIZE SAID HYDROCARBON, WHICH COMPRISES BURNING THE COMBUSTIBLE GASES IN A SAMPLE EFFUENT PRODUCT STREAM FROM SAID REACTOR IN A COMBUSTION ZONE WITH A STREAM OF FREE-OXYGEN-CONTAINING GAS FLOWING AT RATES VARYING FROM LESS THAN, TO MORE THAN, THAT REQUIRED TO BURN ALL OF SAID COMBUSTIBLE GASES AND REPEATING THE CYCLE OF VARIATION TO OBTAIN A SERIES OF MAXIMUM TEMPERATURES IN THE COMBUSTION ZONE, AND CONTROLLING THE RATIO OF OXYGEN TO HYDROCARBON FEED TO SAID REACTOR TO CONTROL SAID MAXIMUM TEMPERATURES AND THEREBY THE PHOTELOMETER OF SAID CARBON BLACK.
Claim 3
Dependent Claim
165 words
APPARATUS FOR CONTROLLING THE PHOTELOMETER OF THE CARBON BLACK PRODUCT FROM A CARBON BLACK REACTOR WHICH COMPRISES IN COMBINATION A CARBON BLACK REACTOR HAVING FEED MEANS FOR INJECTING HYDROCARBON AND OXYGEN-CONTAINING GAS THEREINTO AND AN EFFUENT PRODUCT LINE; A PRODUCT SAMPLING LINE COMMUNICATING WITH THE EFFUENT PRODUCT LINE; AN OXYGEN LINE LEADING INTO SAID SAMPLING LINE HAVING A VARIABLE FLOW-CONTROL VALVE THEREIN; A TIMER OPERATIVELY CONNECTED WITH SAID FLOW-CONTROL VALVE FOR OPERATING SAID VALVE THRU A CYCLE FROM A MINIMUM TO A MAXIMUM FLOW THERETHROUGH AND REPEATING THE CYCLE; A COMBUSTION CATALYST IN SAID SAMPLING LINE DOWNSTREAM OF SAID OXYGEN LINE; TEMPERATURE SENSING MEANS IN SAID SAMPLING LINE ADJACENT SAID CATALYST; FLOW CONTROL MEANS IN SAID FEED MEANS FOR CONTROLLING THE RATIO OF OXYGEN TO HYDROCARBON PASSING TO SAID REACTOR; AND CONTROL MEANS SENSITIVE TO SAID TEMPERATURE SENSING MEANS AND OPERATIVELY CONNECTED WITH THE FLOW CONTROL MEANS IN SAID FEED MEANS SO AS TO CONTROL SAID RATIO IN RESPONSE TO VARIATIONS IN THE SENSED TEMPERATURE.
Claim 4
Dependent Claim
165 words
APPARATUS FOR CONTROLLING THE PHOTELOMETER OF THE CARBON BLACK PRODUCT FROM A CARBON BLACK REACTOR WHICH COMPRISES IN COMBINATION A CARBON BLACK REACTOR HAVING FEED MEANS FOR INJECTING HYDROCARBON AND OXYGEN-CONTAINING GAS THEREINTO AND AN EFFUENT PRODUCT LINE; A PRODUCT SAMPLING LINE COMMUNICATING WITH THE EFFUENT PRODUCT LINE; AN OXYGEN LINE LEADING INTO SAID SAMPLING LINE HAVING A VARIABLE FLOW-CONTROL VALVE THEREIN; A TIMER OPERATIVELY CONNECTED WITH SAID FLOW-CONTROL VALVE FOR OPERATING SAID VALVE THRU A CYCLE FROM A MINIMUM TO A MAXIMUM FLOW THERETHROUGH AND REPEATING THE CYCLE; A COMBUSTION CATALYST IN SAID SAMPLING LINE DOWNSTREAM OF SAID OXYGEN LINE; TEMPERATURE SENSING MEANS IN SAID SAMPLING LINE ADJACENT SAID CATALYST; FLOW CONTROL MEANS IN SAID FEED MEANS FOR CONTROLLING THE RATIO OF OXYGEN TO HYDROCARBON PASSING TO SAID REACTOR; AND CONTROL MEANS SENSITIVE TO SAID TEMPERATURE SENSING MEANS AND OPERATIVELY CONNECTED WITH THE FLOW CONTROL MEANS IN SAID FEED MEANS SO AS TO CONTROL SAID RATIO IN RESPONSE TO VARIATIONS IN THE SENSED TEMPERATURE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-29 | 1962-12-29 | 1963-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-29 | 1966-12-29 | 1967-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-29 | 1970-12-29 | 1971-06-30 | $7700.00 | Window Closed / Lapsed |