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

1977-12-12

1980-04-01

Cohan, Alan

Fluid handling

Diverse fluid containing pressure systems

Gas pressure storage over or displacement of liquid

137 13, 137 15, 137563, B63B 2724

Patent

active

041956532

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), Takizawa
patent: 3874399 (1975-04-01), Ishihara

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