US2625470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing reducing gas mixtures
Assignee: Stanolind Oil and Gas Co
•
Filing: 1946-08-08
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Granted: 1953-01-13
•
Expires: 1966-08-08
Abstract
No abstract record available.
Inventors
- 👤 Jr George Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:33
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; B; B01; B01J; B01J8/00; B01J8/02; B01J8/06; B01J8/062; C01B3/384
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A METHOD OF PRODUCING A SYNTHESIS GAS MIXTURE OF HYDROGEN AND CARBON MONOXIDE WHICH COMPRISES THE STEPS OF SUPPLYING HYDROCARBON FEED GAS AND CARBON DIOXIDE TO A FIRST STAGE OF A REFORMING ZONE, INITIALLY REFORMING A PORTION OF HYDROCARBON FEED GAS WITHIN A FIRST REFORMING STAGE, SUPPLYING HEAT TO SAID FIRST REFORMING STAGE BY CONVECTION WHILE MAINTAINING A SPACE VELOCITY IN THE FIRST REFORMING STAGE WELL WITHIN THE TURBULENT RANGE, AND THEREBY EFFECTING THE ENDOTHERMIC CONVERSION OF HYDROCARBONS WITH CARBON DIOXIDE, INTRODUCING THE TOTAL REFORMING PRODUCTS INTO A HIGHER TEMPERATURE INTERMEDIATE REFORMING STAGE, SUPPLYING A SEPARATE STREAM OF CARBON DIOXIDE TO SAID INTERMEDIATE STAGE, AND INTRODUCING THE TOTAL REFORMING PRODUCTS FROM THE INTERMEDIATE REFORMING STAGE INCLUDING THE UNREACTED HYDROCARBON FEED GAS UNREACTED IN THE FIRST STAGE INTO A FINAL HIGHEST TEMPERATURE REFORMING STAGE WHEREIN HEAT IS SUPPLIED BY RADIATION, WHEREBY A MIXTURE PREDOMINATING IN HYDROGEN AND CARBON MONOXIDE IS PRODUCED.
Claim 2
Independent Claim
150 words
A METHOD OF PRODUCING A SYNTHESIS GAS MIXTURE OF HYDROGEN AND CARBON MONOXIDE WHICH COMPRISES THE STEPS OF SUPPLYING HYDROCARBON FEED GAS AND CARBON DIOXIDE TO A FIRST STAGE OF A REFORMING ZONE, INITIALLY REFORMING A PORTION OF HYDROCARBON FEED GAS WITHIN A FIRST REFORMING STAGE, SUPPLYING HEAT TO SAID FIRST REFORMING STAGE BY CONVECTION WHILE MAINTAINING A SPACE VELOCITY IN THE FIRST REFORMING STAGE WELL WITHIN THE TURBULENT RANGE, AND THEREBY EFFECTING THE ENDOTHERMIC CONVERSION OF HYDROCARBONS WITH CARBON DIOXIDE, INTRODUCING THE TOTAL REFORMING PRODUCTS INTO A HIGHER TEMPERATURE INTERMEDIATE REFORMING STAGE, SUPPLYING A SEPARATE STREAM OF CARBON DIOXIDE TO SAID INTERMEDIATE STAGE, AND INTRODUCING THE TOTAL REFORMING PRODUCTS FROM THE INTERMEDIATE REFORMING STAGE INCLUDING THE UNREACTED HYDROCARBON FEED GAS UNREACTED IN THE FIRST STAGE INTO A FINAL HIGHEST TEMPERATURE REFORMING STAGE WHEREIN HEAT IS SUPPLIED BY RADIATION, WHEREBY A MIXTURE PREDOMINATING IN HYDROGEN AND CARBON MONOXIDE IS PRODUCED.
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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) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |