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Patent US3961902A successfully refreshed from Google Patents.
US3961902A
Expired / Lapsed
US
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Carbon black reactor
Assignee: Phillips Petroleum Co
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Filing: 1974-12-04
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Granted: 1976-06-08
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Expires: 1994-12-04
Abstract
Abstract A tubular carbon black reactor having means for axial introduction of hydrocarbon feed or oxidant on both ends, means for fuel introduction at approximately the center of the reactor, a plurality of means for tangential introduction of oxidant equally distributed over the entire length of the reactor and carbon black withdrawal means located proximate to the locus of introduction of the hydrocarbon feed at both ends.
Inventors
- 👤 John W. Vanderveen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:32
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: 6
Claim 1
Independent Claim
212 words
A carbon black reactor comprising: a. a tubular chamber having a first and second end closed by a first and a second wall, b. first conduit means for feeding hydrocarbon feed along the axis of the reactor into said reactor proximate the first end of said chamber, c. second conduit means comprising a plurality of conduits opening tangentially into said chamber at a plurality of loci positioned along the longitudinal axis of said chamber and substantially equally spaced over the entire length of said chamber, d. third conduit means for introducing fuel into said reactor, the fuel outlet of said means being located approximately in the center between the two ends of said chamber for discharge of fuel in about equal amounts towards both ends of said chamber, e. fourth means for withdrawal of carbon black-containing gas from said reactor, said fourth means being located proximate to the locus of said first conduit means, f. fifth conduit means for introducing hydrocarbon feed or oxidant into said chamber along its longitudinal axis, said fifth conduit means being arranged proximate to the second end of said chamber, and g. sixth means for withdrawal of carbon black-containing gas from said reactor, said sixth means being located proximate to the locus of said fifth conduit means.
Claim 2
Dependent Claim
212 words
A carbon black reactor comprising: a. a tubular chamber having a first and second end closed by a first and a second wall, b. first conduit means for feeding hydrocarbon feed along the axis of the reactor into said reactor proximate the first end of said chamber, c. second conduit means comprising a plurality of conduits opening tangentially into said chamber at a plurality of loci positioned along the longitudinal axis of said chamber and substantially equally spaced over the entire length of said chamber, d. third conduit means for introducing fuel into said reactor, the fuel outlet of said means being located approximately in the center between the two ends of said chamber for discharge of fuel in about equal amounts towards both ends of said chamber, e. fourth means for withdrawal of carbon black-containing gas from said reactor, said fourth means being located proximate to the locus of said first conduit means, f. fifth conduit means for introducing hydrocarbon feed or oxidant into said chamber along its longitudinal axis, said fifth conduit means being arranged proximate to the second end of said chamber, and g. sixth means for withdrawal of carbon black-containing gas from said reactor, said sixth means being located proximate to the locus of said fifth conduit means.
Claim 3
Dependent Claim
34 words
A carbon black reactor in accordance with claim 1 wherein said first conduit means is surrounded by a seventh conduit means for cooling said first conduit means and introducing oxidant axially into said chamber.
Claim 4
Dependent Claim
56 words
A carbon black reactor in accordance with claim 1 wherein a first insulating wall is located spaced from said first end of said chamber to form an open section between said first wall and said first insulating wall, passageways for the passage of carbon black-containing gas through these passageways being provided through said first insulating wall.
Claim 5
Dependent Claim
53 words
A carbon black reactor in accordance with claim 3 wherein a second insulation wall is located spaced apart from second end of said reactor to form an open section between second wall and said second insulation wall, passageways being provided in said second insulation wall for the passage of carbon black-containing smoke therethrough.
Claim 6
Dependent Claim
31 words
A carbon black reactor in accordance with claim 3 wherein eighth conduit means for tangential withdrawal of carbon black-containing gas from said open section are connected with said carbon black reactor.
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) | 1979-06-08 | 1979-12-08 | 1980-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-08 | 1983-12-08 | 1984-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-08 | 1987-12-08 | 1988-06-08 | $7700.00 | Window Closed / Lapsed |