Method and apparatus for decreasing problems caused by residual

Details Method and apparatus for decreasing problems caused by residual Method and apparatus for decreasing problems caused by residual

1991-07-29

1993-08-10

Hart, Charles

Gas separation: processes

Degasification of liquid

Plural successive degassing treatments

95 19, 95261, 96207, 96214, 162 56, 210168, B01D 1900

Patent

active

052344800

ABSTRACT:
The invention relates to a method and assembly for decreasing problems, especially odor hazards and interference with pump action, caused by residual or reaction gases, evolved or picked up in gas washers and various other partial process apparatuses of a pulp process. Residual or reaction gases and/or gases harmful to the carrying out of a process or to the environment are separated from liquid or fiber pulp suspension by means of a deaerating pump which advances the flow of liquid or fiber pulp suspension, separates said gases from said liquid or fiber pulp and vents said gases to outside said process apparatus. The invention concerns in general the use of a deaerating pump for a variety of purposes in the pulp and paper industry for eliminating gas problems.

REFERENCES:
patent: 4435193 (1984-03-01), Gullichsen et al.
patent: 4921400 (1990-05-01), Niskanen
patent: 5017198 (1991-05-01), Schieg et al.
Gullichsen, Johan et al., Tappi, Sep. 1981, "Medium-consistency technology", 64(9):113-116.

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