Shift conversion process for production of hydrogen
Abstract
Abstract IN A STEADY-STATE CONTINUOUS FLOW FIXED-BED WATER-GAS CATALYST SHIFT CONVERSION REACTOR COMPRISING A PLURALITY OF SEPARATE CATALYST BEDS IN SERIES AT A TEMPERATURE IN THE RANGE OF ABOUT 350*F. TO 1050*F. AND A PRESSURE IN THE RANGE OF ABOUT 1 TO 250 ATMOSPHERES, A GASEOUS FEED STREAM COMPRISING H2O AND CO IS CONVERTED INTO H2 AND CO2. A FRACTION OF THE EFFLUENT GAS STREAM FROM THE FIRST CATALYST BED IN THE REACTOR IS RECYCLED AND MIXED WITH A FRESH FEED STREAM OF PROCESS GAS E.G. SYNTHESIS GAS TO COMPRISE SAID GASEOUS FEED STREAM TO THE FIRST CATALYST BED. THE RESIDUAL FRACTION OF SAID EFFLUENT GAS STREAM IS COOLED AND INTRODUCED INTO THE SECOND CATALYST BED IN THE REACTOR. CO CONVERSION IS IMPROVED, PROCESS FEED STEAM REQUIREMENTS ARE REDUCED, LESS CATALYST IS NEEDED, UNDERSIRABLE BACK AND SIDE REACTIONS ARE MINIMIZED, AND THE SYSTEM IS STABILIZED. OPERATING THE SYSTEM AT HIGH PRESSURE ALSO REDUCES OVERALL CATALYST REQUIREMENTS.
Inventors
- 👤 William L Slater
- 👤 James R Muenger
- 👤 Warren G Schlinger
- 👤 Allen M Robin
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |