Patent US4217110A successfully refreshed from Google Patents.
US4217110A
Expired / Lapsed
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Process for preparing a suspension of particles in a hydrocarbon oil
Assignee: Shell USA Inc
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Filing: 1978-03-20
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Granted: 1980-08-12
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Expires: 1998-03-20
Abstract
Abstract Coal particles suspended in water are agglomerated with a binder and the agglomerates are separated from the water and disintegrated in a liquid fuel.
Inventors
- 👤 Eke Verschuur
- 👤 Edward G. Masdin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:25
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/32; C10L1/322
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
73 words
A process for preparing a suspension of coal particles in a hydrocarbon fuel, comprising agglomerating an aqueous suspension of ash-containing coal particles and a binder in an agglomeration device to produce agglomerates of coal particles and binder, and an ash-containing water phase, separating the agglomerates from the ash-containing water phase and suspending the agglomerates in a hydrocarbon fuel, the agglomerates being disintegrated and the resulting coal particles becoming suspended in the hydrocarbon fuel.
Claim 2
Dependent Claim
73 words
A process for preparing a suspension of coal particles in a hydrocarbon fuel, comprising agglomerating an aqueous suspension of ash-containing coal particles and a binder in an agglomeration device to produce agglomerates of coal particles and binder, and an ash-containing water phase, separating the agglomerates from the ash-containing water phase and suspending the agglomerates in a hydrocarbon fuel, the agglomerates being disintegrated and the resulting coal particles becoming suspended in the hydrocarbon fuel.
Claim 3
Dependent Claim
33 words
The process of claim 1, in which the agglomerates are separated from the ash-containing water phase by passing the agglomerates and the ash-containing water phase over a sieve on which the agglomerates remain.
Claim 4
Dependent Claim
61 words
The process of claim 1 in which the agglomerates are separated from the ash-containing water phase by adding, in a separate mixing device, an amount of hydrocarbons to the agglomerate-containing water phase, so that two phases, a hydrocarbon phase and a water phase, are present in the mixing device, and the agglomerates migrate from the water phase into the hydrocarbon phase.
Claim 5
Dependent Claim
29 words
The process as of claim 1 in which, after the separation of the agglomerates from the water phase, the agglomerates are mixed with the total amount of hydrocarbon fuel.
Claim 6
Dependent Claim
50 words
The process of claim 1 in which, after the separation of the agglomerates from the water phase, the agglomerates are mixed with a portion of the total required amount of hydrocarbon fuel to obtain a thick sludge, and the thick sludge is diluted with the remainder of the hydrocarbon fuel.
Claim 7
Dependent Claim
18 words
The process of claim 1 in which the hydrocarbon fuel is a fuel based on heavy oil fractions.
Claim 8
Dependent Claim
15 words
The process of claim 1 in which the binder is taken up in the fuel.
Claim 9
Dependent Claim
16 words
The process of claim 1 in which the binder is recovered from the agglomerates and recycled.
Claim 10
Dependent Claim
41 words
The process of claim 8 in which the binder is a light hydrocarbon fraction and the fuel is a heavy fraction, and the agglomerates are mixed with the fuel at a temperature above the boiling point or range of the binder.
Claim 11
Dependent Claim
16 words
The process of claim 1 in which the hydrocarbon fuel is also used as a binder.
Claim 12
Dependent Claim
52 words
The process of claim 1 in which the agglomerates obtained after separation from the ash-containing water phase are mixed with an additional amount of water and additional binder, the agglomerates are disintegrated, the coal is re-agglomerated, and the fresh agglomerates are separated from ash-containing water and taken up in a hydrocarbon fuel.
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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) | 1983-08-12 | 1984-02-11 | 1984-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-12 | 1988-02-11 | 1988-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-12 | 1992-02-11 | 1992-08-12 | $7700.00 | Window Closed / Lapsed |