US PATENT SUBCLASS 203 / 23
.~.~ Distillation residue as heat source

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

Internet Version by PATENTEC © 1999      Terms of Use


203 /   HD   DISTILLATION: PROCESSES, SEPARATORY

21  DF  AND RECOVERING HEAT BY INDIRECT HEAT EXCHANGE {3}
22  DF  .~ Utilizing recovered heat for heating feed {2}
23.~.~ Distillation residue as heat source

DEFINITION

Classification: 203/23

(under subclass 22) Processes in which distillation residue is the source of recovered heat.

SEE OR SEARCH CLASS

208, Mineral Oils: Processes and Products,

353, for a process wherein one component being distilled is heated by indirect heat exchange of a component of the process, usually by the residue.