US4147602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of hydrogen and carbon dioxide
Assignee: Westinghouse Electric Corp
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Filing: 1978-02-27
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Granted: 1979-04-03
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Expires: 1998-02-27
Abstract
Abstract Hydrogen and carbon dioxide are produced by activating a mixture of carbon monoxide and water with monochromatic light. Preferably, a unidirectional stream of steam activated with a laser at 5400 cm. -1 collides with a carbon monoxide stream to effect the reaction. The carbon dioxide can then be reacted with water to produce formaldehyde. Ketene and water are produced by exposing the formaldehyde to ultraviolet light.
Inventors
- 👤 Max Garbuny
- 👤 D. Colin Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:02
CPC Classifications
C; C07; C07C; C07C45/00; B; B01; B01J; B01J19/00; B01J19/08; B01J19/12; B01J19/121; C01; C01B; C01B3/00; C01B3/02; C01B3/06; C01B3/12; C01B32/00; C01B32/50; C07C45/87
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
49 words
A method of reacting carbon monoxide and water to produce carbon dioxide and hydrogen comprising, in either order, (1) activating said carbon monoxide or said water with monochromatic light to form an activated specie and an unactivated specie; (2) bringing said activated specie and said unactivated specie into contact.
Claim 2
Independent Claim
49 words
A method of reacting carbon monoxide and water to produce carbon dioxide and hydrogen comprising, in either order, (1) activating said carbon monoxide or said water with monochromatic light to form an activated specie and an unactivated specie; (2) bringing said activated specie and said unactivated specie into contact.
Claim 3
Dependent Claim
11 words
A method according to claim 1 wherein said species are gases.
Claim 4
Dependent Claim
27 words
A method according to claim 1 wherein the temperature of said water and carbon monoxide at the point of contact is about 20° to about 100° C.
Claim 5
Dependent Claim
18 words
A method according to claim 1 wherein the source of said light is a single longitudinal mode laser.
Claim 6
Dependent Claim
24 words
A method according to claim 1 wherein said activated specie is water and said light has a wavelength of about 5400 cm. -1 .
Claim 7
Dependent Claim
44 words
A method according to claim 5 wherein said water moves relative to said light in a unidirectional stream with a forward component of velocity at least ten times the lateral component of velocity, and said stream of water is activated before contacting carbon monoxide.
Claim 8
Dependent Claim
16 words
A method according to claim 6 wherein said carbon monoxide is moving in a gaseous stream.
References Cited (Backward Citations)
SU142637A1
Cited
DE1443948A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-02 | 1982-10-02 | 1983-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-02 | 1986-10-02 | 1987-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-02 | 1990-10-02 | 1991-04-03 | $7700.00 | Window Closed / Lapsed |