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US3814684A Expired / Lapsed US ⏱️ 0.0 years remaining

Residue hydrodesulfurization process with catalysts whose pores have a small orifice size

Assignee: Chevron USA Inc
•
Filing: 1972-06-14
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Granted: 1974-06-04
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Expires: 1992-06-14
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Abstract

Abstract A PROCESS FOR THE HYDRODESULFURIZATION OF A CRUDE OIL OR A REDUCED CRUDE OIL CONTAINING THE ASPHALTENE FRACTION OF THE OIL COMPRISING PASSING THE OIL AND HYDROGEN OVER A CATALYST COMPRISING SUPPORTED GROUP VI AND GROUP VIII METALS FOR A TOTAL THROUGHPUT OF LESS THAN 34 BARRELS OF OIL PER POUND OF CATALYST. THE PORE RADIUS OF THE CATALYST AT WHICH ONE-HALF OF THE TOTAL PORE VOLUME IS FILLED WITH LIQUID NITROGEN IN A LIQUID NITROGEN DESORPTION ISOTHERM MEASUREMENT IS ABOVE 40 BUT LESS THAN 58 A. THE PORE RADIUS AT WHICH ONE-HALF OF THE TOTAL PORE VOLUME IS FILLED WITH LIQUID NITROGEN IN THE PRECEDING ADSORPTION PORTION OF THE SAME ISOTHERM MEASUREMENT IS BETWEEN 15-30 A. HIGHER THAN SAID DESORPTION MEASUREMENT. D R A W I N G

Inventors

  • 👤 J Mckinney
  • 👤 G Wilson
  • 👤 R Christman
  • 👤 G Elliott

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 05:11
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G45/06; C10G45/08; B; B01; B01J; B01J35/00; B01J35/60; B01J35/61; B01J35/615; B01J35/63; B01J35/635; B01J35/64; B01J35/647

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1977-06-03 1977-12-03 1978-06-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-06-03 1981-12-03 1982-06-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-06-03 1985-12-03 1986-06-04 $7700.00 Window Closed / Lapsed

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