Patent US5133759A successfully refreshed from Google Patents.
Patent US2717865A successfully refreshed from Google Patents.
US2717865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coking of heavy hydrocarbonaceous residues
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1951-05-17
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Granted: 1955-09-13
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Expires: 1971-05-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles N Kimberlin
- 👤 C F Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:32
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/28; C10B; C10B55/00; C10B55/02; C10B55/04; C10B55/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
THE CONTINUOUS PROCESS OF COKING HEAVY HYDROCARBONACEOUS RESIDUES, WHICH COMPRISES MIXING SAID RESIDUES WITH ABOUT-50-100 VOL. PERCENT OF NAPHTHA DILUENT BOILING IN THE RANGE OF 100* TL 650 F. AND ABOUT 15-100 LBA. OF FINELY DIVIDED COKE PER BARREL OF RESIDUE AND SUBJECTING THE MIXTURE FORMED IN A SUITABLE REACTION VESSEL TO LIQUID PHASE COKING CONDITIONS CONDUCIVE TO A CONVERSION OF ABOUT 50-90% OF SAID RESIDUES INTO DISTILLATE OILS AND CARBONACEOUS RESIDUE, WHILE MAINTAINING IN THE VESSEL SUFFICIENT TURBULENCE TO PREVENT COKE DEPOSITION ON THE WALLS OF THE VESSEL AND TO PROMOTE DEPOSITION OF THE CARBONACEOUS RESIDUE ON THE FINELY DIVIDED COKE.
Claim 2
Dependent Claim
102 words
THE CONTINUOUS PROCESS OF COKING HEAVY HYDROCARBONACEOUS RESIDUES, WHICH COMPRISES MIXING SAID RESIDUES WITH ABOUT-50-100 VOL. PERCENT OF NAPHTHA DILUENT BOILING IN THE RANGE OF 100* TL 650 F. AND ABOUT 15-100 LBA. OF FINELY DIVIDED COKE PER BARREL OF RESIDUE AND SUBJECTING THE MIXTURE FORMED IN A SUITABLE REACTION VESSEL TO LIQUID PHASE COKING CONDITIONS CONDUCIVE TO A CONVERSION OF ABOUT 50-90% OF SAID RESIDUES INTO DISTILLATE OILS AND CARBONACEOUS RESIDUE, WHILE MAINTAINING IN THE VESSEL SUFFICIENT TURBULENCE TO PREVENT COKE DEPOSITION ON THE WALLS OF THE VESSEL AND TO PROMOTE DEPOSITION OF THE CARBONACEOUS RESIDUE ON THE FINELY DIVIDED COKE.
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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) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |