公开(公告)号：US20230313054A1

公开(公告)日：2023-10-05

申请号：US18191139

申请日：2023-03-28

Applicant: Evonik Operations GmbH

Inventor： Stephan Peitz ,  Guido Stochniol ,  Armin Matthias Rix ,  Matthias Böse ,  Tanita Valèrie Six ,  Martin Althoff ,  Ralf Boll ,  Helena Lopez-Fernandez

IPC: C10G65/04

CPC classification number: C10G65/04 ,  C10G2300/1037 ,  C10G2300/4081 ,  C10G2400/28

Abstract: A process can be used for purifying a hydrocarbon stream containing at least Cx alkanes, Cx olefins, low boilers such as Cx−1 hydrocarbons, and high boilers such as Cx+1 hydrocarbons, with x=3 or 4. The process involves separating off low boilers and separating off high boilers, wherein the separating-off of high boilers is performed in the presence of hydrogen and hence a hydrogenation of the olefins present takes place.

公开(公告)号：US20220226768A1

公开(公告)日：2022-07-21

申请号：US17560226

申请日：2021-12-22

Applicant: Evonik Operations GmbH

Inventor： Stephan Peitz ,  Guido Stochniol ,  Martin Oldemeyer ,  Matthias Böse

IPC: B01D53/14 ,  C07C51/44 ,  C07C51/12

Abstract: The invention provides a process for removing organic constituents from a gas stream in a two-stage scrubbing operation, in which scrubbing is performed firstly with an alcoholic scrubbing medium and then with an aqueous scrubbing medium. The laden scrubbing media obtained can be used in certain (chemical) processes.