US PATENT SUBCLASS 261 / 148
.~.~.~ Counter flowing gas and liquid (e.g., absorption or rectification column)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


261 /   HD   GAS AND LIQUID CONTACT APPARATUS

127  DF  WITH EXTERNAL SUPPLY OR REMOVAL OF HEAT {14}
146  DF  .~ Plural distinct contact zones {1}
147  DF  .~.~ Serially arranged in flow path {2}
148.~.~.~ Counter flowing gas and liquid (e.g., absorption or rectification column)

DEFINITION

Classification: 261/148

(under subclass 147) Apparatus wherein spaced serially connected contact zones are arranged so that gas flows through them successively in one direction and liquid successively in the other direction.

SEE OR SEARCH CLASS

62, Refrigeration,

638, and 641 for a gas separation rectification process in which heat is supplied to or removed from the intermediate sections of the column.