Patent ID: 9643901
Date: 2017-05-09
CPC Classifications: B01D,C07C

Claim:
1. A method for generating an alkene comprising: cooling a hydrocarbon-comprising feed stream in a cooling appliance, and then heating said hydrocarbon-comprising feed stream in a further cooling appliance, thereafter subjecting said hydrocarbon-comprising feed stream to dehydrogenation to generate at least one alkene, removing a gas stream from said dehydrogenation and sending said gas stream from said dehydrogenation to an adsorber, removing a gas stream from said adsorber and sending said gas stream from said adsorber to said further cooling appliance wherein said gas stream from said adsorber is cooled by said hydrocarbon-comprising feed stream, removing a cooled gas stream from said further cooling appliance, sending said cooled gas stream to a separator, and removing from said separator a stream of condensed component of said gas stream coming from said adsorber, splitting said stream of condensed component into a first stream of condensed component and a second stream of condensed component, sending said first stream of condensed component to said cooling appliance to cool said hydrocarbon-comprising feed stream, and sending said second stream of condensed component to said further cooling appliance to cool said gas stream from said adsorber, wherein the volumetric flows of said first and second streams of condensed component that are fed to said cooling appliance and said further cooling appliance, respectively, are varied in dependence on the temperature of said hydrocarbon-comprising feed stream leaving said further cooling appliance.