US4132628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for recovering hydrocarbons from molten metal halides
Assignee: United States Department of Energy
•
Filing: 1977-08-12
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Granted: 1979-01-02
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Expires: 1997-08-12
Abstract
Abstract In a process for hydrocracking heavy carbonaceous materials by contacting such carbonaceous materials with hydrogen in the presence of a molten metal halide catalyst to produce hydrocarbons having lower molecular weights and thereafter recovering the hydrocarbons so produced from the molten metal halide, an improvement comprising injecting into the spent molten metal halide, a liquid low-boiling hydrocarbon stream is disclosed.
Inventors
- 👤 Melvyn B. Pell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:42
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/08; Y; Y10; Y10S; Y10S423/00; Y10S423/09; Y10S423/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
107 words
In a process for hydrocracking heavy carbonaceous materials by contacting said heavy carbonaceous materials with hydrogen in the presence of a molten metal halide catalyst to produce hydrocarbons having a lower molecular weight and thereafter separating at least a major portion of said hydrocarbons from the spent molten metal halide, the improvement comprising separating a major portion of said hydrocarbons from said spent melt and thereafter injecting into said spent molten metal halide a liquid low-boiling hydrocarbon stream so that said liquid low-boiling hydrocarbon stream is vaporized in said spent molten metal halide thereby recovering additional quantities of heavy hydrocarbonaceous material from said spent molten metal halide.
Claim 2
Dependent Claim
107 words
In a process for hydrocracking heavy carbonaceous materials by contacting said heavy carbonaceous materials with hydrogen in the presence of a molten metal halide catalyst to produce hydrocarbons having a lower molecular weight and thereafter separating at least a major portion of said hydrocarbons from the spent molten metal halide, the improvement comprising separating a major portion of said hydrocarbons from said spent melt and thereafter injecting into said spent molten metal halide a liquid low-boiling hydrocarbon stream so that said liquid low-boiling hydrocarbon stream is vaporized in said spent molten metal halide thereby recovering additional quantities of heavy hydrocarbonaceous material from said spent molten metal halide.
Claim 3
Dependent Claim
12 words
The improvement of claim 1 wherein said metal halide is zinc halide.
Claim 4
Dependent Claim
20 words
The improvement of claim 2 wherein said low-boiling stream has a boiling point, at one atmosphere, below about 200° C.
Claim 5
Dependent Claim
19 words
The improvement of claim 3 wherein the boiling point of said low-boiling stream is greater than about 50° C.
Claim 6
Dependent Claim
34 words
The improvement of claim 1 wherein substantially all hydrocarbons having a boiling point below about 475° C have been removed from said molten zinc chloride prior to injection of said liquid low-boiling hydrocarbon stream.
References Cited (Backward Citations)
US3355376A
Cited
US3371049A
Cited
US3505206A
Cited
US3505207A
Cited
US3679577A
Cited
US3594329A
Cited
US3764515A
Cited
US3736250A
Cited
US3790468A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-01 | 1982-07-03 | 1983-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-01 | 1986-07-03 | 1987-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-01 | 1990-07-03 | 1991-01-02 | $7700.00 | Window Closed / Lapsed |