Patent US2796387A successfully refreshed from Google Patents.
US2796387A
Expired / Lapsed
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Catalytic cracking of pretreated hydrocarbon oils
Assignee: Standard Oil Co
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Filing: 1954-07-29
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Granted: 1957-06-18
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Expires: 1974-07-29
Abstract
No abstract record available.
Inventors
- 👤 Walter D Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:51
CPC Classifications
C; C10; C10G; C10G21/00; C10G21/06; C10G21/08; C10G21/10; C10G55/00; C10G55/02; C10G55/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A PROCESS FOR THE CATALYTIC CRACKING OF GAS OILS WHICH CONTAIN ORGANIC NITROGEN COMPOUNDS DELETREIOUS IN THE CATALYTIC CRACTING STEP, WHICH PROCESS COMPRISES CONTACTING AT LEAST ONE GAS IOL SELECTED FROM THE GROUP CONSISTING OF VIRGIN GAS IOL AND GAS OIL OBTAINED FRM THE THERMAL CRACKING OF PETROLEUM SIMULTANEOUSLY WITH A SELECTIVE SOLVENT AND WITH BETWEEN ABOUT 0.05 AND 0.5 GRAM MOL OF A FRIEDEL-CRAFTS HALIDE PER GRAM ATOM OF NITROGEN CONTAINED IN SAID GAS OIL AND THEREBY FORMIN G PRECIPITATES OF NITROGEN COMPOUNDS, CARRYING OUT THE CONTACTING OF THE GAS OIL SIMULTANEOUSLY WITH THE FRIEDEL-CRAFTS HALIDE AND WITH AN AMOUNT OF A SELECTIVE SOLVENTS SLIGHTLT IN EXCESS OF THAT NECESSARY TO PRODUCE SEPARATE EXTRACT AND RAFFINATE PHASES, THEREBY FORMING AN EXTRACT PHASE WHICH CONTAINS PRECIPITATES OF THE NITROGEN COMPOUNDS TOGETHER WITH A MINIMUM AMOUNT OF THE CONTACTED GAS OIL AND A RAFFINATEPHASE CONTAINING THE TREATED GAS IOL WHICH HAS SUBSTANTIALLY THE SAME PERCENTAGE OF AROMATIC HYDROCARBONS AS THE GAS OIL CHANGED TO THE CONTACTING STEP, RECOVERING THE
Claim 2
Dependent Claim
168 words
A PROCESS FOR THE CATALYTIC CRACKING OF GAS OILS WHICH CONTAIN ORGANIC NITROGEN COMPOUNDS DELETREIOUS IN THE CATALYTIC CRACTING STEP, WHICH PROCESS COMPRISES CONTACTING AT LEAST ONE GAS IOL SELECTED FROM THE GROUP CONSISTING OF VIRGIN GAS IOL AND GAS OIL OBTAINED FRM THE THERMAL CRACKING OF PETROLEUM SIMULTANEOUSLY WITH A SELECTIVE SOLVENT AND WITH BETWEEN ABOUT 0.05 AND 0.5 GRAM MOL OF A FRIEDEL-CRAFTS HALIDE PER GRAM ATOM OF NITROGEN CONTAINED IN SAID GAS OIL AND THEREBY FORMIN G PRECIPITATES OF NITROGEN COMPOUNDS, CARRYING OUT THE CONTACTING OF THE GAS OIL SIMULTANEOUSLY WITH THE FRIEDEL-CRAFTS HALIDE AND WITH AN AMOUNT OF A SELECTIVE SOLVENTS SLIGHTLT IN EXCESS OF THAT NECESSARY TO PRODUCE SEPARATE EXTRACT AND RAFFINATE PHASES, THEREBY FORMING AN EXTRACT PHASE WHICH CONTAINS PRECIPITATES OF THE NITROGEN COMPOUNDS TOGETHER WITH A MINIMUM AMOUNT OF THE CONTACTED GAS OIL AND A RAFFINATEPHASE CONTAINING THE TREATED GAS IOL WHICH HAS SUBSTANTIALLY THE SAME PERCENTAGE OF AROMATIC HYDROCARBONS AS THE GAS OIL CHANGED TO THE CONTACTING STEP, RECOVERING THE
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) | 1960-06-17 | 1960-12-17 | 1961-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-17 | 1964-12-17 | 1965-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-17 | 1968-12-17 | 1969-06-18 | $7700.00 | Window Closed / Lapsed |