METHOD AND DEVICE FOR GENERATING AN ALKENE

摘要

The invention relates to a method for generating an alkene, in which a hydrocarbon-comprising feed material is subjected to a dehydrogenation and a product material comprising at least one alkene is generated. A gas stream coming from an adsorber is cooled by a gas stream which comprises the feed material, and the gas stream coming from the adsorber is cooled by a condensed component of the gas stream coming from the adsorber in a first cooling phase. Feed material is cooled in a second cooling phase by a condensed component of the gas stream coming from the adsorber. The flow of the condensed component of the gas stream coming from the adsorber, fed to the first and/or second cooling phase, is varied depending on the temperature of the gas stream leaving the first cooling phase which comprises the feed material and which is fed to the dehydrogenation.

主权项

1. A method for generating an alkene comprising:
subjecting a hydrocarbon-comprising feed material (1) to dehydrogenation to generate a product material (2) comprising at least one alkene, and sending the gas stream coming from dehydrogenation to an adsorber (40), cooling a gas stream (11) coming from said adsorber (40) by a gas stream (5) which comprises the feed material, and cooling the gas stream (11) coming from the adsorber (40) by a condensed component (12) of the gas stream coming from the adsorber (40) in a first cooling phase, and cooling the feed material (1) in a second cooling phase by a condensed component (12) of the gas stream coming from the adsorber (40), wherein the volumetric flow of the condensed component (12) of the gas stream coming from the adsorber (40), which condensed component is fed to the first cooling phase and/or the second cooling phase, is varied in dependence on the temperature of the gas stream (5) leaving the first cooling phase which comprises the feed material and which is fed to the dehydrogenation.