Appeal No. 1997-1733
Application 08/248,062
THE INVENTION
Appellants claim an apparatus for transferring a volatile
solute from a gaseous mixture to a liquid absorbent, including
pressure difference control means for maintaining a difference
between the pressure of the gaseous mixture on one side of a
porous membrane and the pressure of the liquid absorbent on
the other side of the membrane, such that an interface between
the gaseous mixture and the liquid absorbent is substantially
immobilized at the membrane. Claim 1 is illustrative and
reads as follows:
1. A volatile solute-transfer system for transferring a
volatile solute from a gas-feed mixture to a liquid absorbent,
the solute-transfer system comprising:
(a) an absorption module;
(b) a porous membrane located within and connected to the
absorption module, the porous membrane being wettable by the
liquid absorbent, the porous membrane dividing the absorption
module into a gas feed chamber and a liquid absorbent chamber,
the absorption module having a gas-feed mixture inlet port an
a gas-feed mixture outlet port which communicate with the ga-
feed mixture inlet port an a gas-feed mixture outlet port
which communicate with the gas-feed chamber and a liquid
absorbent inlet port and a liquid absorbent outlet port which
communicate with the liquid absorbent chamber, in which the
absorption module contains a pressure difference control means
for maintaining a difference between a gas pressure of the
2
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