Patent US4278987A successfully refreshed from Google Patents.
Patent US3620700A successfully refreshed from Google Patents.
US3620700A
Expired / Lapsed
US
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Recovery of entrained carbon in synthesis gas
Assignee: JOSEPH P TASSONEY
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Filing: 1969-08-15
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Granted: 1971-11-16
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Expires: 1989-08-15
Abstract
Abstract Free carbon soot entrained in the product gas of a free-flow synthesis gas generator is recovered in a sedimentation vessel as part of a thickened dispersion of solids in water from which clear supernatant water is easily separated by supplying particulate petroleum coke to the sedimentation vessel or to the reaction zone of said gas generator as a portion of the fuel, or by mixing the carbon soot-water dispersion in the sedimentation vessel with a thickened water slurry of unconverted petroleum coke such as produced by quenching in water the product gas of a second free-flow synthesis gas generator in which the fuel comprises raw particulate petroleum coke and the thickened underflow from said sedimentation vessel.
Inventors
- 👤 Warren G Schlinger
- 👤 William L Slater
- 👤 Roger M Dille
- 👤 Joseph P Tassoney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:41
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/36; B; B01; B01D; B01D53/00; B01D53/34; C01B3/50; C01B2203/00; C01B2203/04; C01B2203/0465; C01B2203/049
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
90 words
The process as described in claim 1 wherein said dispersion of free carbon soot, particulate petroleum coke and water is formed by the steps of burning particulate petroleum coke as well as said liquid hydrocarbon fuel in the reaction zone of said synthesis gas generator thereby including in said gaseous effluent a mixture of particles of unconverted petroleum coke and free carbon soot; and contacting said gaseous effluent with water in a gas-liquid contacting zone to form said dispersion of free carbon soot and unconverted particulate petroleum coke in water.
Claim 2
Dependent Claim
160 words
The process as described in claim 1 wherein said dispersion of free carbon soot, particulate petroleum coke and water is formed by contacting the gaseous effluent from said synthesis gas generator with water in a gas-liquid contacting zone to form a dispersion of free carbon soot in water; reacting a slurry of petroleum coke with an oxygen rich gas in the reaction zone of a second unpacked noncatalytic synthesis gas generator at an autogenous temperature in the range of about 1,700* to 3,500* F. and at a pressure in the range of about 1 to 350 atmospheres to produce a gaseous effluent comprising substantially hydrogen and carbon monoxide and containing unconverted petroleum coke; contacting said gaseous effluent from said second synthesis gas generator with water in a gas-liquid contacting zone to form a dispersion of particulate petroleum coke in water; and mixing together said dispersion of particulate petroleum coke in water and said dispersion of free carbon soot in water.
Claim 3
Dependent Claim
40 words
The process of claim 2 wherein the ratio of particulate petroleum coke to free carbon soot in said dispersion is from about 0.5 to 5 parts by weight of particulate petroleum coke per part by weight of free carbon soot.
Claim 4
Dependent Claim
39 words
The process of claim 2 wherein the clear water separated from said dispersion is recycled to said gas-liquid contacting zone and the remainder of said dispersion is recycled to said synthesis gas generator as a portion of the feed.
Claim 5
Dependent Claim
42 words
The process of claim 2 wherein the particulate petroleum coke and the liquid hydrocarbon fuel burned in the reaction zone of said synthesis gas generator comprises a slurry of liquid hydrocarbon fuel and 1 to 60 weight percent of particulate petroleum coke.
Claim 6
Dependent Claim
40 words
The process of claim 3 wherein the clear water separated from said dispersion is recycled to said gas-liquid contacting zone, and the remainder of said dispersion is recycled to said second synthesis gas generator as a portion of the feed.
Claim 7
Dependent Claim
38 words
The process of claim 3 wherein the slurry of petroleum coke reacted in the reaction zone of said second unpacked synthesis gas generator comprises a slurry of water and 25 to 55 weight percent of particulate petroleum coke.
Claim 8
Dependent Claim
39 words
The process of claim 1 wherein said dispersion of free carbon soot, particulate petroleum coke and wAter is formed by mixing said free carbon soot with water to form a dispersion and introducing particulate petroleum coke into said dispersion.
References Cited (Backward Citations)
US2864677A
Cited
US3069251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |