US PATENT SUBCLASS 208 / 343
.~.~.~ Indirect heat exchange between lean and rich absorbent

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

Internet Version by PATENTEC © 1999      Terms of Use


208 /   HD   MINERAL OILS: PROCESSES AND PRODUCTS

308  DF  FRACTIONATION {5}
340  DF  .~ Recovery of mineral oil from natural or converted gases {1}
341  DF  .~.~ By absorption and vaporization {4}
343.~.~.~ Indirect heat exchange between lean and rich absorbent

DEFINITION

Classification: 208/343

(under subclass 341) Processes wherein the lean absorbent is passed in indirect heat exchange relationship with the rich absorbent.

(1) Note. The heat from the desorbed lean oil is used to preheat or vaporize the rich oil.

SEE OR SEARCH THIS CLASS, SUBCLASS:

353, and 365, for heat exchange processes in the distillation of mineral oils.

SEE OR SEARCH CLASS

196, Mineral Oils: Apparatus, 134, for vaporizing apparatus having means to preheat the incoming oil by the heat of the vapors or unvaporized residue of distillation.