US3615355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of collecting and treating exhaust gases containing carbon monoxide
Assignee: Foster Wheeler Inc
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Filing: 1968-09-09
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Granted: 1971-10-26
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Expires: 1988-09-09
Abstract
Abstract This invention relates to the use of the blow gases containing carbon monoxide which are derived from steelmaking processes. A joint must be provided between the steel converter apparatus and a collection pipe through which the blow gases are conveyed for use and, in view of very high temperature of the gases, it is difficult to provide a secure sealed joint. Therefore according to the invention the joint is sealed by a blast of carbon dioxide which prevents the egress of the blow gases past the joint to the atmosphere.
Inventors
- 👤 Geoffrey Frederick Skinner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:04
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/38; C01; C01B; C01B3/00; C01B3/02; C01B3/06; C01B3/12; C01B3/16; C01B32/00; C01B32/40; Y; Y02; Y02P; Y02P10/00; Y02P10/10; Y02P10/122; Y02P10/143
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
The process defined in claim 1 wherein said resulting mixture is cooled by indirect heat exchange with water which is transformed into steam, and wherein said steam is mixed with said mixture before it is subjected to said hydrogen shift reaction.
Claim 2
Dependent Claim
15 words
The process defined in claim 2 wherein said product gas is used to prepare methanol.
References 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) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |