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US2731508A Expired / Lapsed US ⏱️ 0.0 years remaining

Conversion of hydrocarbons for the production of unsaturates and gasoline with the use of inert solids

Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1951-06-08
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Granted: 1956-01-17
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Expires: 1971-06-08
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Abstract

No abstract record available.

Inventors

  • 👤 Charles E Jahnig
  • 👤 James W Brown

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 19:10
CPC Classifications
C; C07; C07C; C07C9/00; C07C9/14; C10; C10G; C10G9/00; C10G9/28; C10G9/32

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 190 words
THE PROCESS OF CONVERTING HEAVY PETROLEUM OIL TO LOWER BOILING HYDROCARBONS WHICH COMPRISES FEEDING SAID OIL INTO CONTACT WITH A RAPIDLY FLOWING REACTION STREAM OF FINELY DIVIDED SOLID PRODUCTS WHICH ARE SUBSTANTIALLY INERT AND ARE PREHEATED TO A TEMPERATRE SUFFICIENTLY HIGH TO RAISE THE TEMPERATURE OF THE OIL TO AT LEAST 1200* F., MAINTAINING A CONTACT TIME OF 0.1 TO 10 SECONDS TO PRODUCE HIGH TEMPERATURE REACTION PRODUCTS INCLUDING SUBSTANTIAL PROPORTIONS OF LOW MOLECULAR WEIGHT OLEFINIC HYDROCARBONS, INTRODUCING A SECOND STREAM OF OIL FEED INTO THE REACTION STREAM AFTER THE AFORESAID CONTACTING IN SUFFICIENT QUANTITY TO SUBSTANTIALLY REDUCE THE REACTION TEMPERATURE TO A RANGE BETWEEN ABOUT 950* AND 1200* F. TO QUENCH CONVERSION AND DEGRADATION OF SAID LOW MOLECULAR WEIGHT OLEFINIC HYDROCARBONS AND ALSO TO INITIATE CONVERSION OF SAID SECOND STREAM TO PRODUCTS INCLUDING SUBSTANTIAL PROPORTIONS OF HYDROCARBONS BOILING IN THE GASOLINE BOILING RANGE, INTRODUCING ADDITIONAL HOT SOLID PARTICLES INTO SAID REACTION STREAM TO MAINTAIN A CONVERSION TEMPERATURE WITHIN THE RANGE LAST SPECIFIED, SEPARATING THE REACTION PRODUCTS FROM SAID SOLIDS AND CONTINUOUSLY REHEATING AND RECYCLING AT LEAST A PORTION OF SAID SOLID PARTICLES TO MAINTAIN CONTINUOUS OPERATION IN BOTH STAGES.
Claim 2
Dependent Claim 190 words
THE PROCESS OF CONVERTING HEAVY PETROLEUM OIL TO LOWER BOILING HYDROCARBONS WHICH COMPRISES FEEDING SAID OIL INTO CONTACT WITH A RAPIDLY FLOWING REACTION STREAM OF FINELY DIVIDED SOLID PRODUCTS WHICH ARE SUBSTANTIALLY INERT AND ARE PREHEATED TO A TEMPERATRE SUFFICIENTLY HIGH TO RAISE THE TEMPERATURE OF THE OIL TO AT LEAST 1200* F., MAINTAINING A CONTACT TIME OF 0.1 TO 10 SECONDS TO PRODUCE HIGH TEMPERATURE REACTION PRODUCTS INCLUDING SUBSTANTIAL PROPORTIONS OF LOW MOLECULAR WEIGHT OLEFINIC HYDROCARBONS, INTRODUCING A SECOND STREAM OF OIL FEED INTO THE REACTION STREAM AFTER THE AFORESAID CONTACTING IN SUFFICIENT QUANTITY TO SUBSTANTIALLY REDUCE THE REACTION TEMPERATURE TO A RANGE BETWEEN ABOUT 950* AND 1200* F. TO QUENCH CONVERSION AND DEGRADATION OF SAID LOW MOLECULAR WEIGHT OLEFINIC HYDROCARBONS AND ALSO TO INITIATE CONVERSION OF SAID SECOND STREAM TO PRODUCTS INCLUDING SUBSTANTIAL PROPORTIONS OF HYDROCARBONS BOILING IN THE GASOLINE BOILING RANGE, INTRODUCING ADDITIONAL HOT SOLID PARTICLES INTO SAID REACTION STREAM TO MAINTAIN A CONVERSION TEMPERATURE WITHIN THE RANGE LAST SPECIFIED, SEPARATING THE REACTION PRODUCTS FROM SAID SOLIDS AND CONTINUOUSLY REHEATING AND RECYCLING AT LEAST A PORTION OF SAID SOLID PARTICLES TO MAINTAIN CONTINUOUS OPERATION IN BOTH STAGES.

References Cited (Backward Citations)

US2387798A Cited
US2356697A Cited
US2429161A Cited
US2471104A Cited
US2448922A Cited
US2608526A Cited
US2561334A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1959-01-16 1959-07-18 1960-01-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1963-01-16 1963-07-18 1964-01-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1967-01-16 1967-07-18 1968-01-17 $7700.00 Window Closed / Lapsed

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