US3647192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-liquid contacting tray
Assignee: Shell USA Inc
•
Filing: 1970-03-05
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Granted: 1972-03-07
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Expires: 1990-03-05
Abstract
Abstract A tray for contacting liquids and gases comprising a gas-liquid contacting section having a plurality of apertures for the passage of gas therethrough. At least one liquid supply inlet and at least one liquid discharge outlet is provided, the outlets being separated from the contacting section by a baffle plate disposed on the tray. A plate is disposed above the tray over the contacting sections thereof at a distance from the tray ranging between about one-half of the height of the baffle plate and twice that height, the plate being provided with passage means whose walls are positioned obliquely in such a way that, to the mixture of gas and liquid flowing through those passages in the upward direction, a deflection may be imparted in the direction of the nearest liquid supply outlet.
Inventors
- 👤 Johannes H Degroot
- 👤 Hendrik J Scheffer
- 👤 Willem H Smit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:57
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/16; B01D3/22
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
135 words
A tray for contacting liquids and gases comprising: a gas-liquid contacting section having a plurality of apertures for the passage of gas; at least one liquid supply inlet and at least one liquid discharge outlet operatively engaging said tray, the discharge outlets being separated from the contacting section by a baffle plate disposed on the tray; and a plate disposed above said tray over the contacting section thereof at a distance from the tray ranging between about onehalf of the height of the baffle plate and twice that height, said plate being provided with passage means whose walls are positioned obliquely in such a way that, to the mixture of gas and liquid flowing through those passages in the upward direction, a deflection may be imparted in the direction of the nearest liquid supply outlet.
Claim 2
Dependent Claim
135 words
A tray for contacting liquids and gases comprising: a gas-liquid contacting section having a plurality of apertures for the passage of gas; at least one liquid supply inlet and at least one liquid discharge outlet operatively engaging said tray, the discharge outlets being separated from the contacting section by a baffle plate disposed on the tray; and a plate disposed above said tray over the contacting section thereof at a distance from the tray ranging between about onehalf of the height of the baffle plate and twice that height, said plate being provided with passage means whose walls are positioned obliquely in such a way that, to the mixture of gas and liquid flowing through those passages in the upward direction, a deflection may be imparted in the direction of the nearest liquid supply outlet.
Claim 3
Dependent Claim
43 words
The tray of claim 1 wherein the total cross-sectional area of the passage means in the plate is large enough that the resistance of the plate to gas flow is at most 20 percent of that of the contacting section of the tray.
Claim 4
Dependent Claim
24 words
The tray of claim 1 wherein the smallest horizontal dimension of the passages is at most 20 millimeters viewed in the axial direction thereof.
Claim 5
Dependent Claim
13 words
The tray of claim 1 wherein the plate consists of an expanded metal.
Claim 6
Dependent Claim
57 words
The tray of claim 1 wherein the deflection of the walls of the passage means in the direction of the nearest liquid supply device imparted to the mixture of gas and liquid is less strong according as the distance from the liquid supply device and the liquid discharge device between which the passages are present is greater.
Claim 7
Dependent Claim
43 words
The tray of claim 1 wherein the deflection through the passage means in the direction of the nearest liquid supply device imparted to the mixture of gas and liquid is less strong according as those passages are closer to that liquid supply device.
References Cited (Backward Citations)
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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) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |