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US3254473A Expired / Lapsed US ⏱️ 0.0 years remaining

Dehydration of gases and regeneration of desiccant

Assignee: Phillips Petroleum Co
•
Filing: 1963-07-29
•
Granted: 1966-06-07
•
Expires: 1983-07-29
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Abstract

No abstract record available.

Inventors

  • 👤 Jack R Fryar
  • 👤 James S Connors

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 07:16
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 184 words
A PROCESS FOR THE DEHYDRATION OF A MIXTURE OF GASES CONTAINING MOISTURE, WHICH PROCESS COMPRISES: CONTACTING SAID GASES WITH A LIQUID DESICCANT; COOLING SAID CONTACTED GASES AND DESICCANT TO A TEMPERATURE SUFFICIENT TO CAUSE CONDENSATION OF A PORTION OF SAID GASES; PASSING SAID COOLED MIXTURE TO A SEPARATION ZONE AND THEREIN SEPARATING SAME INTO A SUBSTANTIALLY DRY GAS PHASE, A CONDENSATE PHASE, AND A WET DESICCANT PHASE CONTAINING DISSOLVED HYDROCARBONS INCLUDING GASES AND HIGHER BOILING NORMALLY LIQUID HYDROCARBONS CONTAINED IN SAID MIXTURE OF GASES; INDIRECTLY APPLYING SUFFICIENT HEAT TO SAID WET DESICCANT PHASE IN SAID SEPARATION ZONE TO CAUSE SEPARATION OF DISSOLVED HYDROCARBONS THEREFROM BUT INSUF-FICIENT TO CAUSE SEPARATION OF WATER VAPOR THEREFROM BY CIRCULATING A HEATED REGENERATED DESICCANT THROUGH SAID WET DESICCANT PHASE IN SAID SEPARATION ZONE; PASSING SAID HEATED WET DESICCANT PHASE TO A DESICCANT REGENERATION ZONE; IN SAID REGENERATION ZONE APPLYING SUFFICIENT ADDITIONAL HEAT TO SAID HEATED WET DESICCANT TO CAUSE SEPARATION OF WATER VAPOR THEREFROM AND PRODUCE SAID HEATED REGENERATED DESICCANT; AND RECYCLING SAID HEATED REGENERATED DESICCANT THROUGH SAID WET DESICCANT PHASE IN SAID SEPARATION ZONE TO SAID CONTACTING STEP.
Claim 2
Dependent Claim 184 words
A PROCESS FOR THE DEHYDRATION OF A MIXTURE OF GASES CONTAINING MOISTURE, WHICH PROCESS COMPRISES: CONTACTING SAID GASES WITH A LIQUID DESICCANT; COOLING SAID CONTACTED GASES AND DESICCANT TO A TEMPERATURE SUFFICIENT TO CAUSE CONDENSATION OF A PORTION OF SAID GASES; PASSING SAID COOLED MIXTURE TO A SEPARATION ZONE AND THEREIN SEPARATING SAME INTO A SUBSTANTIALLY DRY GAS PHASE, A CONDENSATE PHASE, AND A WET DESICCANT PHASE CONTAINING DISSOLVED HYDROCARBONS INCLUDING GASES AND HIGHER BOILING NORMALLY LIQUID HYDROCARBONS CONTAINED IN SAID MIXTURE OF GASES; INDIRECTLY APPLYING SUFFICIENT HEAT TO SAID WET DESICCANT PHASE IN SAID SEPARATION ZONE TO CAUSE SEPARATION OF DISSOLVED HYDROCARBONS THEREFROM BUT INSUF-FICIENT TO CAUSE SEPARATION OF WATER VAPOR THEREFROM BY CIRCULATING A HEATED REGENERATED DESICCANT THROUGH SAID WET DESICCANT PHASE IN SAID SEPARATION ZONE; PASSING SAID HEATED WET DESICCANT PHASE TO A DESICCANT REGENERATION ZONE; IN SAID REGENERATION ZONE APPLYING SUFFICIENT ADDITIONAL HEAT TO SAID HEATED WET DESICCANT TO CAUSE SEPARATION OF WATER VAPOR THEREFROM AND PRODUCE SAID HEATED REGENERATED DESICCANT; AND RECYCLING SAID HEATED REGENERATED DESICCANT THROUGH SAID WET DESICCANT PHASE IN SAID SEPARATION ZONE TO SAID CONTACTING STEP.

References Cited (Backward Citations)

US2725337A Cited
US2327187A Cited
US2690814A Cited
US2768118A Cited
US2750331A Cited
US2990910A Cited
US3105748A Cited
US3119674A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-06-06 1969-12-06 1970-06-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-06-06 1973-12-06 1974-06-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-06-06 1977-12-06 1978-06-07 $7700.00 Window Closed / Lapsed

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