US3015619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and device for chilling hot cracked gases
Assignee: Hoechst AG
•
Filing: 1959-02-24
•
Granted: 1962-01-02
•
Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 Wimmer Rudolf
- 👤 Wirtz Rudolf
- 👤 Portz Willi
- 👤 Schilken Hartmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:38
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/002; B; B01; B01D; B01D45/00; B01D45/04; B01D45/08; B01D45/10; B01D51/00; B01D51/10; F; F28; F28C; F28C3/00; F28C3/06; F28D; F28D21/00; F28D2021/0019; F28D2021/0075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A PROCESS FOR CHILLING HOT CRACKED GASES HAVING A TEMPERATURE OF AT LEAST 700*C. WHICH COMPRISES PASSING HOT CRACKED GASES TO LEAVE A SHAPED ZONE AT A PASSAGE WHICH IS SHAPED AS A CUTTING IN THE DIRECTION OF FLOW AND WHICH IS HELD AT A TEMPERATURE IN THE RANGE FROM 100 TO 300*C., THEN COOLING DOWN SAID HOT CRACKED GASES TO A TEMPERATURE AT WHICH THE CRACKING REACTION IS QUENCHED BY BRINGING THEM INTO CONTACT WITH WATER WHICH IS VAPORIZED THEREBY, SUBSTANTIALLY REMOVING NON-GASEOUS PARTICLES WHICH ARE SUSPENDED IN SAID CHILLED CRACKING GAS THEREFROM BY MEANS OF A FILM OF HYDROCARBON OILS WHICH ARE OF A NATURE SUCH THAT NO SUBSTANTIAL AMOUNT THEREOF ARE DISTILLABLE UNDER NORMAL PRESSURE.
Claim 2
Dependent Claim
118 words
A PROCESS FOR CHILLING HOT CRACKED GASES HAVING A TEMPERATURE OF AT LEAST 700*C. WHICH COMPRISES PASSING HOT CRACKED GASES TO LEAVE A SHAPED ZONE AT A PASSAGE WHICH IS SHAPED AS A CUTTING IN THE DIRECTION OF FLOW AND WHICH IS HELD AT A TEMPERATURE IN THE RANGE FROM 100 TO 300*C., THEN COOLING DOWN SAID HOT CRACKED GASES TO A TEMPERATURE AT WHICH THE CRACKING REACTION IS QUENCHED BY BRINGING THEM INTO CONTACT WITH WATER WHICH IS VAPORIZED THEREBY, SUBSTANTIALLY REMOVING NON-GASEOUS PARTICLES WHICH ARE SUSPENDED IN SAID CHILLED CRACKING GAS THEREFROM BY MEANS OF A FILM OF HYDROCARBON OILS WHICH ARE OF A NATURE SUCH THAT NO SUBSTANTIAL AMOUNT THEREOF ARE DISTILLABLE UNDER NORMAL PRESSURE.
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) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |