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US3846087A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of reducing the viscosity of carbon-containing oils

Assignee: Texaco Inc
•
Filing: 1971-09-22
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Granted: 1974-11-05
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Expires: 1991-09-22
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Abstract

Abstract 1. IN A METHOD FOR RECOVERING CARBON FROM A CARBONWATER DISPERSION BY CONTACTING SAID DISPERSION WITH AN OIL BLEND TO FORM A CARBON OIL SLURRY, THE IMPROVEMENT CONSISTING OF USING AN OIL BLEND OF 4 TO 60 WEIGHT PERCENT OF ASPHALTIC RESIDUAL OIL BOILING ABOVE 100* F., SAID AMOUNT BEING SUFFICIENT TO SATISFY THE OIL ABSORTION NUMBER OF SAID CARBON AND THE REMAINDER OF SAID BLEND COMPRISING A LIGHT, LIQUID, NON-ASPHALTIC CONTAINING HYDROCARBON BOILING BELOW ABOUT 100*F. FROM THE GROUP OF KEROSENE, GAS OIL, DIESEL FUEL, SHALE FUEL OIL, DEASPHALTED OIL AND DECANTED OIL FROM A FUEL CATALYTIC CRACKING UNIT WHEREBY THE RESULTING CARBON-OIL SLURRY REMAINS PUMPABLE EVEN WHEN CONTAINING UP TO 20 WEIGHT PERCENT OF CARBON.

Inventors

  • 👤 R Dille
  • 👤 R Chapman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 19:34
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/32; C10L1/322

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 116 words
IN A METHOD FOR RECOVERING CARBON FROM A CARBONWATER DISPERSION BY CONTACTING SAID DISPERSION WITH AN OIL BLEND TO FORM A CARBON OIL SLURRY, THE IMPROVEMENT CONSISTING OF USING AN OIL BLEND OF 4 TO 60 WEIGHT PERCENT OF ASPHALTIC RESIDUAL OIL BOILING ABOVE 100* F., SAID AMOUNT BEING SUFFICIENT TO SATISFY THE OIL ABSORTION NUMBER OF SAID CARBON AND THE REMAINDER OF SAID BLEND COMPRISING A LIGHT, LIQUID, NON-ASPHALTIC CONTAINING HYDROCARBON BOILING BELOW ABOUT 100*F. FROM THE GROUP OF KEROSENE, GAS OIL, DIESEL FUEL, SHALE FUEL OIL, DEASPHALTED OIL AND DECANTED OIL FROM A FUEL CATALYTIC CRACKING UNIT WHEREBY THE RESULTING CARBON-OIL SLURRY REMAINS PUMPABLE EVEN WHEN CONTAINING UP TO 20 WEIGHT PERCENT OF CARBON.
Claim 2
Dependent Claim 116 words
IN A METHOD FOR RECOVERING CARBON FROM A CARBONWATER DISPERSION BY CONTACTING SAID DISPERSION WITH AN OIL BLEND TO FORM A CARBON OIL SLURRY, THE IMPROVEMENT CONSISTING OF USING AN OIL BLEND OF 4 TO 60 WEIGHT PERCENT OF ASPHALTIC RESIDUAL OIL BOILING ABOVE 100* F., SAID AMOUNT BEING SUFFICIENT TO SATISFY THE OIL ABSORTION NUMBER OF SAID CARBON AND THE REMAINDER OF SAID BLEND COMPRISING A LIGHT, LIQUID, NON-ASPHALTIC CONTAINING HYDROCARBON BOILING BELOW ABOUT 100*F. FROM THE GROUP OF KEROSENE, GAS OIL, DIESEL FUEL, SHALE FUEL OIL, DEASPHALTED OIL AND DECANTED OIL FROM A FUEL CATALYTIC CRACKING UNIT WHEREBY THE RESULTING CARBON-OIL SLURRY REMAINS PUMPABLE EVEN WHEN CONTAINING UP TO 20 WEIGHT PERCENT OF CARBON.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-11-04 1978-05-06 1978-11-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-04 1982-05-06 1982-11-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-04 1986-05-06 1986-11-05 $7700.00 Window Closed / Lapsed

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