US3620698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogen and carbon monoxide from slurries of solid carboniferous fuels
Assignee: Texaco Inc
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Filing: 1968-12-26
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Granted: 1971-11-16
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Expires: 1988-12-26
Abstract
Abstract Production of synthesis gas from a slurry of particulate solid carboniferous fuels, e.g., petroleum coke, coke from bituminous coal, coal, oil shale, tar sands, pitch, or mixtures of these materials in water or in a hydrocarbon liquid fuel. The amount of particulate solid carboniferous fuel in a pumpable slurry may be increased to 75 wt. percent and the particle size of the solid fuel may be increased to pass through a 12 mesh screen by the addition of 2 to 10 wt. percent of soot as produced, for example, by the partial oxidation of crude oil. The slurry at a relatively low velocity in the range of 5 to 50 feet per second is mixed with a stream of oxidizing gas at a relatively high velocity in the range of 200 feet per second to sonic velocity at the burner tip to form an atomized dispersion of water, hydrocarbon liquid fuel, oxidizing gas, and solid carboniferous fuel. Under synthesis gas-generating conditions, the atomized dispersion is reacted to produce a gaseous mixture of hydrogen and carbon monoxide. By this process, pumpable slurry feeds of low-cost solid carboniferous fuels may be gasified in a synthesis gas generator without being preheated.
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
2026-10-26 13:08
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/46; C10J3/466; C10J3/48; C10J3/485; C10J3/72; C10J3/74; C10J3/78; C10L; C10L1/00; C10L1/32; C10L1/322; C10J2300/00; C10J2300/09; C10J2300/0903; C10J2300/0906; C10J2300/0913; C10J2300/0946; C10J2300/0953; C10J2300/0956; C10J2300/0959; C10J2300/0973; C10J2300/0976; C10J2300/18; C10J2300/1846
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
154 words
atomizing the slurry of (1) in the reaction zone of a synthesis gas generator by contacting a stream of said slurry at relatively low velocity in the range of 5 to 50 feet per second with a stream of oxidizing gas at a relatively high velocity in the range of 100 feet per second to sonic velocity and selected from the group consisting of air, oxygen, oxygen-enriched air, and mixtures of stream and one of said oxidizing gases to form an atomized dispersion in which the ratio of atoms of oxygen to atoms of carbon is in the range of 0.7 to 1.2 and the weight ratio of H2O to fuel is in the range of 0.2 to 3.0; and 3. reacting the atomized dispersion of (2) in said reaction zone at a temperature in the range of 1,800* to 3, 500* F. and a pressure in the range of 100 to 3,000 p.s.i.g.
Claim 2
Dependent Claim
38 words
The process of claim 1 wherein the hydrocarbon liquid fuel in (1) is selected from the group consisting of gasoline, naphtha, residual fuel oil, reduced crude oil, whole crude oil, shale oil, coal oil, and tar sand oil.
Claim 3
Dependent Claim
79 words
mixing together about 10-75 wt. percent of the ground solid carboniferous fuel of (1) with a liquid vehicle selected from the group consisting of water, gasoline, naphtha, residual fuel oil, reduced crude oil, whole crude oil, coal oil, shale oil, tar sand oil, and mixtures of said liquid vehicles, and admixing at least 2 wt. percent (basis liquid vehicle) of free carbon soot having an oil absorption number greater than 1 so as to produce a pumpable liquid-solid slurry;
Claim 4
Dependent Claim
45 words
passing a stream of the slurry of (2) at a relatively low velocity in the range of 5 to 50 feet per second through the inner conduit of a burner situated in the reaction zone of a synthesis gas generator and having an annular passage;
Claim 5
Dependent Claim
35 words
The process of claim 1 wherein said solid carboniferous fuel is selected from the group consisting of petroleum coke, coal, coke made from bituminous coal, oil shale, tar sands, pitch, and mixtures of said materials.
Claim 6
Dependent Claim
76 words
The process of claim 1 wherein the atomizing of (2) is effected by passing said stream of slurry at a velocity of 5 to 50 feet per second through the inner conduit of an annulus-type burner in said reaction zone and contacting said stream with said stream of oxidizing gas passing at a velocity in the range of 200 feet per second to sonic velocity at the burner tip through the annular passage of said burner.
Claim 7
Dependent Claim
111 words
passing a stream of oxidizing gas selected from the group consisting of air, oxygen-enriched air, oxygen, and mixtures of steam and one of said oxidizing gases through the annular passage of said burner at a relatively high velocity in the range of 100 feet per second to sonic velocity, contacting said streams in said reaction zone to produce an atomized dispersion of said liquid vehicle, oxidizing gas, and particulate solid carboniferous fuel in which the ratio of the atoms of oxygen to atoms of carbon is in the range of 0.7-1.2 to 1.0 and the weight ratio of H2O to fuel present is in the range of 0.2-3.0 to 1.0; and
Claim 8
Dependent Claim
43 words
reacting the atomized dispersion of (4) in said reaction zone at a temperature in the range of 1,800* to 3,500* F., and a pressure in the range of 100 to 3,000 p.s.i.g. to produce a gaseous mixture comprising H2, CO, CO2 and H2O.
Claim 9
Dependent Claim
78 words
The process of claim 1 wherein the atomizing of (2 ) is effected by passing said stream of oxidizing gas at a velocity in the range of 200 feet per second to sonic velocity at the burner tip through the inner conduit of an annulus-type burner in said reaction zone and contacting said stream with a stream of said slurry passing at a velocity of 5 to 50 feet per second through the annular passage of said burner.
Claim 10
Dependent Claim
25 words
In a process for the gasification of solid carboniferous fuel to produce a gaseous mixture comprising H2, CO, CO2 and H2O the improvement which comprises:
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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) | 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 |