Seawater pre-deaerator process for open-cycle ocean thermal ener

Details Seawater pre-deaerator process for open-cycle ocean thermal ener Seawater pre-deaerator process for open-cycle ocean thermal ener

1992-01-09

1993-05-04

Bascomb, Jr., Wilbur

Distillation: processes, separatory

Water purification only

Under pressure or vacuum

203 39, 203 49, 203 88, 55 53, 55 55, 202176, 2021852, B01D 306, B01D 1900

Patent

active

052078752

ABSTRACT:
A seawater deaerator has a large reservoir through which seawater slowly flows. Gas is injected into the bottom of the reservoir through porous aeration stones forming bubble nuclei. The seed bubbles move upward through the seawater in the reservoir expanding but not coalescing, and withdrawing dissolved gas from the seawater. The deaerated seawater flows out of the reservoir and subsequently flows through spouts into a flash evaporator. Gas is withdrawn from a low pressure gas chamber at the top of the reservoir by a vacuum pump. The exhaust of the vacuum pump supplies gas to the air injectors.

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