Cracking furnace having thin straight single pass reaction tubes
Abstract
Abstract THE PRESENT INVENTION CONCERNS A METHOD AND APPARATUS FOR TREATING A HYDROCARBONACEOUS PROCESS FLUID BY INDIRECTLY HEATING SUCH FLUID TO HIGH TEMPERTURES IN EXTREMELY SHORT PERIODS OF TIME AND THEN RAPIDLY COOLING. THE PROCESS FLUID IS PASSED INTO THE STRAIGHT SINGLE PASS REACTION TUBES OF THE NOVEL HEATER OF THIS INVENTION, SUCH REACTION TUBES BEING CONTAINED IN A REFRACTORY ENCLOSURE. THE TUBES ARE EACH CONNECTED TO AN INDIVIDUAL QUENCH TUBE WHEREIN THE PROCESS FLUID MAY BE RAPIDLY COOLED EITHER BY A COOLANT FLOWING THROUGH A PLURALITY OF JACKETS EACH SURROUNDING EACH INDIVIDUAL QUENCH TUBE OR, IN ANOTHER EMBODIMENT, THE PROCESS FLUID MAY BE COOLED BY HAVNG THE QUENCH TUBES IMMERSED IN A LIQUID BATH. IN ANOTHER EMBODIMENT OF THIS INVENTION A METHOD AND APPARATUS IS PROVIDED FOR CARRYING OUT THE AFOREMENTIONED METHOD WHILE SIMULTANEOUSLY DECOKING INDIVIDUAL REACTION TUBES.
Inventors
- 👤 Bruce Alden Wallace
Bibliographic Details
Claims Analysis
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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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |