US2843530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Residuum conversion process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1954-08-20
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Granted: 1958-07-15
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Expires: 1974-08-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur W Langer
- 👤 Graham G Wanless
- 👤 Carl S Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:17
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/32; C10G47/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A HYDROGEN DONOR DILUENT CRACKING PROCESS WHICH COMPRISES ADMIXING A HEAVY HYDROGEN DEFICIENT PETROLEUM, OIL WITH 5 TO 100 VOL. PERCENT OF HYDROGEN DONOR DILUENT COMPRISING PARTIAL HYDROGENATED PREDOMINATELY AROMATICNAPHTHENIC HYDROCARBONS BOILING ABOVE 430*F., THE PRECURSOR OF SAID HYDROGEN DONOR DILUENT BEING SELECTED FROM THE GROUP CONSISTING OF THERMAL TARS, CATALYTIC CYCLE STOCKS, EXTRACTS THEREOF, LUBE OIL EXTRACTS AND MIXTURES THEREOF AND THERMALLY CRACKING NON-CATALYTICALLY IN A THERMAL CRACKING ZONE THE MIXTURE AT A CRACKING TEMPERATURE IN THE RANGE OF 800* TO 1100*F. UNDER LIQUID PHASE CONDITIONS TO OBTAIN 80 TO 98% 1000*F. CONVERSION OF SAID HYDROGEN DEFICIENT OIL WHILE CONTINUOUSLY REMOVING GASIFORM CONVERSION PRODUCTS BOILING BELOW THE BOILING RANGE OF SAID DILUENT, WHEREBY THE RATIO OF UNCONVERTED HYDROGEN DONOR DILUENT TO UNCONVERTED HYDROGEN DEFICIENT OILS IN THE LIQUID MIXTURE UNDERGOING CRACKING IS SUBSTANTIALLY INCREASED AND EFFICIENT UTILIZATION IS MADE OF UNCONVERTED HYDROGEN DONOR DILUENT.
Claim 2
Dependent Claim
145 words
A HYDROGEN DONOR DILUENT CRACKING PROCESS WHICH COMPRISES ADMIXING A HEAVY HYDROGEN DEFICIENT PETROLEUM, OIL WITH 5 TO 100 VOL. PERCENT OF HYDROGEN DONOR DILUENT COMPRISING PARTIAL HYDROGENATED PREDOMINATELY AROMATICNAPHTHENIC HYDROCARBONS BOILING ABOVE 430*F., THE PRECURSOR OF SAID HYDROGEN DONOR DILUENT BEING SELECTED FROM THE GROUP CONSISTING OF THERMAL TARS, CATALYTIC CYCLE STOCKS, EXTRACTS THEREOF, LUBE OIL EXTRACTS AND MIXTURES THEREOF AND THERMALLY CRACKING NON-CATALYTICALLY IN A THERMAL CRACKING ZONE THE MIXTURE AT A CRACKING TEMPERATURE IN THE RANGE OF 800* TO 1100*F. UNDER LIQUID PHASE CONDITIONS TO OBTAIN 80 TO 98% 1000*F. CONVERSION OF SAID HYDROGEN DEFICIENT OIL WHILE CONTINUOUSLY REMOVING GASIFORM CONVERSION PRODUCTS BOILING BELOW THE BOILING RANGE OF SAID DILUENT, WHEREBY THE RATIO OF UNCONVERTED HYDROGEN DONOR DILUENT TO UNCONVERTED HYDROGEN DEFICIENT OILS IN THE LIQUID MIXTURE UNDERGOING CRACKING IS SUBSTANTIALLY INCREASED AND EFFICIENT UTILIZATION IS MADE OF UNCONVERTED HYDROGEN DONOR DILUENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |