Patent US3813251A successfully refreshed from Google Patents.
US4147615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot sand-coal-cracking to hydrodistillate fuels
Assignee: Individual
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Filing: 1977-04-12
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Granted: 1979-04-03
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Expires: 1997-04-12
Abstract
Abstract Fuel liquids and gases from a hydrocarbonaceous material such as coal may be produced by contacting the material with an iron group metal silicide, preferably cobalt and/or iron silicide. Also, an iron group metal silicate, preferably cobalt and/or iron silicate, provides a solid source of additional oxygen in the combustion of a carbonaceous fuel with oxygen. Carbon-coated sand, such as that produced in coal conversion utilizing an iron group metal silicide sand, is utilized in reduction of oxidic iron ores.
Inventors
- 👤 Arnold M. Leas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:22
CPC Classifications
C; C10; C10G; C10G1/00; Y; Y10; Y10S; Y10S208/00; Y10S208/951
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
52 words
A method of producing fuel liquids and gases from a solid hydrocarbonaceous material which comprises contacting said hydrocarbonaceous material with an iron group metal silicide in the presence of an oxygen-containing gas and steam, at hydrocarbonaceous material conversion conditions to form iron group metal silicate and a fuel liquid and gas product.
Claim 2
Independent Claim
52 words
A method of producing fuel liquids and gases from a solid hydrocarbonaceous material which comprises contacting said hydrocarbonaceous material with an iron group metal silicide in the presence of an oxygen-containing gas and steam, at hydrocarbonaceous material conversion conditions to form iron group metal silicate and a fuel liquid and gas product.
Claim 3
Dependent Claim
11 words
The method of claim 1, wherein said hydrocarbonaceous material is coal.
Claim 4
Dependent Claim
17 words
The method of claim 2, wherein said iron group metal silicide is cobalt silicide or iron silicide.
Claim 5
Dependent Claim
17 words
The method of claim 3 wherein said contact is effected in the presence of a coal oil.
Claim 6
Dependent Claim
38 words
The method of claim 4 wherein the conversion conditions include a temperature of from about 1000° F. to about 2000° F., and the coal is in the form of particles about one quarter inch or less in size.
Claim 7
Dependent Claim
61 words
The method of claim 2 wherein said hydrocarbonaceous material is coal, the conversion conditions include a temperature of from about 800° F. to about 1800° F., a pressure of from about 10 to about 3000 psig, and a silicide residence time of from about 5 to about 200 minutes, and the iron group metal silicide is cobalt silicide or iron silicide.
Claim 8
Dependent Claim
53 words
The method of claim 1 further characterized in that iron group metal silicate formed by contact with the hydrocarbonaceous material, oxygen-containing gas and steam is: (a) separated from fuel liquid and gas product; (b) reduced to form iron group metal silicide; and, returned into contact with said hydrocarbonaceous material, oxygen-containing gas and steam.
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) | 1982-04-02 | 1982-10-02 | 1983-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-02 | 1986-10-02 | 1987-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-02 | 1990-10-02 | 1991-04-03 | $7700.00 | Window Closed / Lapsed |