.~ By condensation of a paraffin molecule with an olefin-acting molecule, e.g., alkylation, etc. {11}
715
.~.~ With autorefrigeration
DEFINITION
Classification: 585/715
With autorefrigeration:
(under subclass 709) Subject matter in which the synthesis reaction zone is cooled by evaporation of the more volatile materials which are, or have been, present in the reaction zone.
(1) Note. The low boiling materials are vaporized by lowering the pressure with concomitant cooling of the remaining liquid hydrocarbons.
(2) Note. The chilled liquid hydrocarbon may be used to refrigerate the reaction zone directly or indirectly through heat exchanger walls.
SEE OR SEARCH THIS CLASS, SUBCLASS:
911+, for collections of patents concerned with introducing, maintaining, or removing heat by an atypical procedure other than autorefrigeration in a paraffin alkylation process.
