Apparatus and methods for enhancing gas-liquid contact/separation
An environmental control system includes an air conditioning subsystem; a mix manifold downstream of the air conditioning subsystem and upstream of an environment to be conditioned; and a contaminant removal subsystem downstream of the environment to be conditioned. The contaminant removal subsystem includes a first gas-liquid contactor-separator. The first gas-liquid contactor-separator includes a first rotating porous bed that provides a heat/mass transfer surface for contact between a contaminated air from the environment and a liquid absorbent.
1. A gas-liquid contactor-separator, comprising:
an inlet that discharges a first flow of contaminated air having a gas contaminant;
a nozzle that discharges a second flow of droplets of clean liquid absorbent;
wherein the first and second flows are co-current to one another; and
a rotating porous bed that includes a back surface and a peripheral surface, the peripheral surface extending from the back surface to a front peripheral edge, the peripheral surface having a porous portion and a non-porous portion, the porous portion having a plurality of pores therein, the non-porous portion being void of pores, the rotating porous bed configured to:
contact, without the need for gravity, clean liquid absorbent with contaminated air;
transfer, without the need for gravity, the gas contaminant to the clean liquid absorbent to thereby produce a used liquid absorbent and a cleaned air.
2. The apparatus of claim 1 , further comprising a separator downstream of the porous bed and that separates the used liquid absorbent from the gas contaminant.
3. The apparatus of claim 1 , wherein the porous bed collects, at the peripheral surface, used liquid-absorbent.
4. The apparatus of claim 1 , wherein the porous bed collects, at the peripheral surface, clean liquid-absorbent.
5. The apparatus of claim 4 , further comprising a pitot scoop pump at the peripheral surface.
6. The apparatus of claim 1 , further comprising a second rotating porous bed downstream of the first rotating porous bed.
7. The apparatus of claim 6 , wherein the second rotating porous bed receives used liquid absorbent.