Patent US2884368A successfully refreshed from Google Patents.
US2884368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the pyrolysis and gasification of hydrocarbonaceous materials
Assignee: United Engineers and Constructors Inc
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Filing: 1956-02-17
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Granted: 1959-04-28
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Expires: 1976-02-17
Abstract
No abstract record available.
Inventors
- 👤 Sweeney Maxwell Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:48
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/34; C10G9/36; C10G9/38; C10J; C10J3/00; C10J3/46; C10J3/48; C10J3/482; C10J3/54; C10J3/72; C10J3/82; C10J3/84; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0946; C10J2300/0953; C10J2300/0956; C10J2300/0959; C10J2300/0973; C10J2300/0976; C10J2300/12; C10J2300/1253; C10J2300/16; C10J2300/1603; C10J2300/1606; C10J2300/18; C10J2300/1807; C10J2300/1823; C10J2300/1861; C10J2300/1884; C10J2300/1892
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A PROCESS FOR THE PYROLSIS OF HYDROCARBONACEOUS MATERIAL WHICH COMPRISES CHARGING A FEED STREAM OF HYDROCARBONACEOUS MATERIAL INTO A HOT MOVING REACTION STREAM OF GASES AND ENTRAINED FINELY DIVIDED CARBONACEOUS SOLIDS TO HEAT SAID STREAM TO BETWEEN ABOUT 1100*F. AND ABOUT 1800*F. AND TO AT LEAST PARTIALLY PYROLYSE SAID FEED STREAM, DELIVERING THE COMBINED FEED AND REACTION STREAMS TO A FLUIDIZED BED OF SAID FINELY DIVIDED SOLIDS, REMOVING VAPOROUS PRODUCTS OF PYROLYSIS FROM SAID BED, REMOVING CARBONACEOUS SOLIDS FROM SAID BED, BURNING A FIRST PORTION OF THE SOLIDS REMOVED FROM SAID BED IN A COMBUSTION ZONE APART FROM A SECOND PORTION OF SAID SOLIDS REMOVED FROM THE BED TO GIVE HOT GASES AND AN ASH RESIDUE, REMOVING AT LEAST A PORTION OF SAID RESIDUE FROM THE PROCESS, CONTACTING THE SECOND PORTION OF THE SOLIDS WITH THE HOT GASES PRODUCED IN SAID COMBUSTION ZONE TO REHEAT SAID SECOND PORTION, AND USING THE SOLIDS SO REHEATED IN FORMING SAID REACTION STREAM.
Claim 2
Dependent Claim
159 words
A PROCESS FOR THE PYROLSIS OF HYDROCARBONACEOUS MATERIAL WHICH COMPRISES CHARGING A FEED STREAM OF HYDROCARBONACEOUS MATERIAL INTO A HOT MOVING REACTION STREAM OF GASES AND ENTRAINED FINELY DIVIDED CARBONACEOUS SOLIDS TO HEAT SAID STREAM TO BETWEEN ABOUT 1100*F. AND ABOUT 1800*F. AND TO AT LEAST PARTIALLY PYROLYSE SAID FEED STREAM, DELIVERING THE COMBINED FEED AND REACTION STREAMS TO A FLUIDIZED BED OF SAID FINELY DIVIDED SOLIDS, REMOVING VAPOROUS PRODUCTS OF PYROLYSIS FROM SAID BED, REMOVING CARBONACEOUS SOLIDS FROM SAID BED, BURNING A FIRST PORTION OF THE SOLIDS REMOVED FROM SAID BED IN A COMBUSTION ZONE APART FROM A SECOND PORTION OF SAID SOLIDS REMOVED FROM THE BED TO GIVE HOT GASES AND AN ASH RESIDUE, REMOVING AT LEAST A PORTION OF SAID RESIDUE FROM THE PROCESS, CONTACTING THE SECOND PORTION OF THE SOLIDS WITH THE HOT GASES PRODUCED IN SAID COMBUSTION ZONE TO REHEAT SAID SECOND PORTION, AND USING THE SOLIDS SO REHEATED IN FORMING SAID REACTION STREAM.
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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) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |