US PATENT SUBCLASS 585 / 633
.~.~.~ Plural stage or with specified quench or separation procedure


Current as of: June, 1999
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585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

500  DF  UNSATURATED COMPOUND SYNTHESIS {14}
601  DF  .~ Diolefin product {4}
616  DF  .~.~ By dehydrogenation {3}
633.~.~.~ Plural stage or with specified quench or separation procedure


DEFINITION

Classification: 585/633

Plural stage or with specified quench or separation procedure:

(under subclass 616) Subject matter wherein a dehydrogenation reactor effluent material is passed to another dehydrogenation reaction or stage to a temperature reduction stage or to a separation procedure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

330, for a process in which the effluent from a dehydrogenation step is sent to a polymerization step.

654+, for a process of monoolefin synthesis by dehydrogenation, which process may often be equivalent to the first stage of processes contained herein (subclass 633).