Patent US2847366A successfully refreshed from Google Patents.
US2847366A
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Steam cracking process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1955-03-04
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Granted: 1958-08-12
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Expires: 1975-03-04
Abstract
No abstract record available.
Inventors
- 👤 Boisture Worth William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:10
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/14; C10G9/34; C10G9/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A NOW CATALYTIC, STEAM CRACKING PROCESS WHEREIN AN OIL IS DILUTED WITH STEAM AND SUBJECTED TO CRACKING TEMPERATURES IN THE RANGE OF 1200* TO 1600*F. IN A CRACKING COIL, ATHE IMPROVEMENT WHICH COMPRISES INTRODUCING THE HIGH TEMPERATURE EFFEUENT FROM SAID COIL INTO A TRANSFER LINE QUENCH ZONE CONTAINING A DISPERSED SUSPENSION OF FLOWING RELATIVELY COOL PARTICULATE SOLIDS, THE SOLIDS-FEED RATIO VEING IN THE RANGE OF 10-2. THE DENSITY OF THE RESULTANT MIXTURE BEING IN THE RANGE OF 2-10 LBS./FT. AND THE AVERAGE SOLIDS RESIDENCE TIME IN THE TRANSFER LINE QUENCH ZONE BEING IN THE RANGE OF 1 T0 7 SECONDS WHEREBY SAID EFFLUENT IS QUENCH TO A TEMPERATURE IN THE RANGE OF 800* TO 1000*F. AND LIQUID RESIDUE IN AND AMOUNT OF FROM 1
Claim 2
Dependent Claim
125 words
IN A NOW CATALYTIC, STEAM CRACKING PROCESS WHEREIN AN OIL IS DILUTED WITH STEAM AND SUBJECTED TO CRACKING TEMPERATURES IN THE RANGE OF 1200* TO 1600*F. IN A CRACKING COIL, ATHE IMPROVEMENT WHICH COMPRISES INTRODUCING THE HIGH TEMPERATURE EFFEUENT FROM SAID COIL INTO A TRANSFER LINE QUENCH ZONE CONTAINING A DISPERSED SUSPENSION OF FLOWING RELATIVELY COOL PARTICULATE SOLIDS, THE SOLIDS-FEED RATIO VEING IN THE RANGE OF 10-2. THE DENSITY OF THE RESULTANT MIXTURE BEING IN THE RANGE OF 2-10 LBS./FT. AND THE AVERAGE SOLIDS RESIDENCE TIME IN THE TRANSFER LINE QUENCH ZONE BEING IN THE RANGE OF 1 T0 7 SECONDS WHEREBY SAID EFFLUENT IS QUENCH TO A TEMPERATURE IN THE RANGE OF 800* TO 1000*F. AND LIQUID RESIDUE IN AND AMOUNT OF FROM 1
References Cited (Backward Citations)
US1492305A
Cited
US2340814A
Cited
US2363903A
Cited
US2376190A
Cited
US2443210A
Cited
US2485315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |