US3156733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective pyrolysis of methane to acetylene and hydrogen
Assignee: Individual
•
Filing: 1960-12-02
•
Granted: 1964-11-10
•
Expires: 1980-12-02
Abstract
No abstract record available.
Inventors
- 👤 Happel John
- 👤 Kramer Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:24
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A PROCESS FOR THE PYROILYSIS OF METHANE TO PRODUCE ACETYLENE AND HYDROGEN WHICH COMPRISES HEATING A METHANE CONTAINING STREAM, WITHOUT SUBSTANTIAL INTERRUPTION, WITHIN A PYROLYTIC REACTION ZONE AT SUB-ATMOSPHERIC PRESSURE AND AT A MIXIMUM TEMPERATURE WITHIN THE RANGE OF 1500*C. TO 2000*C.; THE SPACE VELOCITY OF HYDROCARBON THROUGH SAID REACTION ZONE BEING WITHIN THE RAGNE OF 20 SEC.-1 TO 0.05 SEC.-1; THE INITIATION OF SAID REACTION ZONE BEING CHARACTERIZED BY A TEMPERATURE OF ABOUT 250* C. BELOW THE AFORESAID MAXIMUM TEMPERATURE; WITHDRAWING THE GASEOUS PRODUCT FROM SAID REACTION ZONE AND QUENCHING SAID PRODUCT RAPIDLY TO A TEMPERATURE OF AT LEAST 600*C.
Claim 2
Dependent Claim
101 words
A PROCESS FOR THE PYROILYSIS OF METHANE TO PRODUCE ACETYLENE AND HYDROGEN WHICH COMPRISES HEATING A METHANE CONTAINING STREAM, WITHOUT SUBSTANTIAL INTERRUPTION, WITHIN A PYROLYTIC REACTION ZONE AT SUB-ATMOSPHERIC PRESSURE AND AT A MIXIMUM TEMPERATURE WITHIN THE RANGE OF 1500*C. TO 2000*C.; THE SPACE VELOCITY OF HYDROCARBON THROUGH SAID REACTION ZONE BEING WITHIN THE RAGNE OF 20 SEC.-1 TO 0.05 SEC.-1; THE INITIATION OF SAID REACTION ZONE BEING CHARACTERIZED BY A TEMPERATURE OF ABOUT 250* C. BELOW THE AFORESAID MAXIMUM TEMPERATURE; WITHDRAWING THE GASEOUS PRODUCT FROM SAID REACTION ZONE AND QUENCHING SAID PRODUCT RAPIDLY TO A TEMPERATURE OF AT LEAST 600*C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |