Method and apparatus for recovering products of low pumpability

Details Method and apparatus for recovering products of low pumpability Method and apparatus for recovering products of low pumpability

1979-05-16

1981-09-08

Cohan, Alan

Fluid handling

Processes

Affecting flow by the addition of material or energy

137240, 137563, 134 5, 134 24, F17D 118

Patent

active

042879035

ABSTRACT:
This method and apparatus comprises displacing the product to be removed from a tank by forming and permanently maintaining at the upper part of the tank, above the product, an aqueous phase filling progressively the tank as the product is removed through a drain pipe. Jets of hot water are introduced into this aqueous phase and a secondary injection is effected in said aqueous phase above the level of these jets.

REFERENCES:
patent: 2045752 (1936-06-01), Butterworth
patent: 3596674 (1971-08-01), Takigawa
patent: 3874399 (1975-04-01), Ishihara

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