Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1983-12-28
1987-07-21
Spitzer, Robert
Gas separation
Means within gas stream for conducting concentrate to collector
55 36, 55196, 55270, 73 19, 2611211, B01D 1900
Patent
active
046816011
ABSTRACT:
A method and apparatus for indirectly measuring the percentage of dissolved gas in a process liquid by injecting bubbles of the same kind of gas of predetermined diameter into the liquid to be measured and then measuring gas bubble life or survival time. Bubble lifetime is directly related to dissolved gas percentage. A relatively long gas bubble lifetime would be indicative of a highly saturated or poorly degassed process liquid, whereas a relatively short bubble lifetime would be indicative of a low degree of saturation or a well degassed process liquid. In one embodiment, dissolved gas percentage is determined by placing a small quantity of the process liquid into a container, injecting a burst of gas bubbles, of predetermined size, into this quantity of liquid, and then measuring gas bubble lifetime. In another embodiment, a portion of the liquid being measured is continuously routed through a tube at a known constant flow rate. A continuous series of individual bubbles are then injected into the transparent tube, at a fairly constant rate, at or near the bottom thereof. The maximum distance attained by a bubble within the transparent tube before disappearing from view is a direct indication of the percentage of dissolved gas in the liquid being measured.
REFERENCES:
patent: 2745282 (1956-05-01), Rochon
patent: 3058908 (1962-10-01), Morgan
patent: 3171273 (1965-03-01), Dijkema
patent: 3942792 (1976-03-01), Topol
patent: 3962046 (1976-06-01), Morrison
patent: 4314969 (1982-02-01), Arthur et al.
Article entitled, "Vibrating Capillary for Production of Small Uniform Bubbles" in publication, The Review of Scientific Instruments, vol. 38, No. 7, pp. 969-970, (Jul. 1967), by F. MacIntyre.
Kelleher John J.
Polaroid Corporation
Spitzer Robert
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