公开(公告)号：US11629109B2

公开(公告)日：2023-04-18

申请号：US17808250

申请日：2022-06-22

Applicant: Evonik Operations GmbH

Inventor： Philip Lutze ,  Stephan Peitz ,  Armin Matthias Rix ,  Tanita Valèrie Six ,  Moritz Schröder ,  Niklas Paul

IPC: C07C7/08 ,  B01D3/40 ,  B01D3/14 ,  B01D3/00

Abstract: An extractive distillation column system contains a combination column and a side rectification column. A process can be used for separation of butenes from C4-hydrocarbon streams using the extractive distillation column system.

公开(公告)号：US11512030B2

公开(公告)日：2022-11-29

申请号：US17463604

申请日：2021-09-01

Applicant: Evonik Operations GmbH

Inventor： Stephan Peitz ,  Guido Stochniol ,  Johannes Knossalla

IPC: C07C2/28 ,  C07C7/04

Abstract: A process can be used for oligomerization of isobutene by conversion of an isobutene-containing hydrocarbon stream over an acid catalyst in at least one reaction stage, where a particular ratio of recycle to feed is employed.

公开(公告)号：US11434182B2

公开(公告)日：2022-09-06

申请号：US15929604

申请日：2020-05-12

Applicant: Evonik Operations GmbH

Inventor： Guido Stochniol ,  Stephan Peitz ,  Fabian Nadolny ,  Benjamin William Berntsson ,  Helene Reeker ,  Reiner Bukohl ,  Niklas Paul

IPC: C07C2/10 ,  C07C11/08

Abstract: A process for the oligomerization of C3- to C5-olefins proceeds in the presence of a catalyst, wherein the oligomerization is carried out in at least one reaction stage which includes at least one reactor and at least one distillation column. The content of oligomers in the feed stream to the at least one reaction stage after removal of the oligomers in the at least one distillation column is less than 0.4% by weight.

公开(公告)号：US11253844B2

公开(公告)日：2022-02-22

申请号：US16293859

申请日：2019-03-06

Applicant: Evonik Operations GmbH

Inventor： Fabian Nadolny ,  Stephan Peitz ,  Guido Stochniol ,  Robert Franke ,  Thomas Quandt

IPC: B01J23/755 ,  B01J35/02 ,  B01J35/10 ,  C07C2/10 ,  B01J35/00 ,  B01J23/04 ,  B01J37/02 ,  B01J37/00 ,  B01J21/12

Abstract: The invention relates to an oligomerization catalyst comprising nickel oxide and silica-alumina support material and to a process for oligomerization of C3- to C6-olefins using the oligomerization catalyst.

公开(公告)号：US11186782B2

公开(公告)日：2021-11-30

申请号：US16722127

申请日：2019-12-20

Applicant: Evonik Operations GmbH

Inventor： Stephan Peitz ,  Helene Reeker ,  Reiner Bukohl ,  Thomas Quandt ,  Stefan Röder ,  Armin Matthias Rix ,  Andreas Wolff ,  Guido Stochniol

IPC: C10G29/04 ,  B01J23/44 ,  B01J35/10 ,  C07C319/18 ,  C10G55/06 ,  B01J21/04 ,  B01J21/08 ,  B01J21/18

Abstract: The invention relates to a catalyst for a process for removing mercaptans and optionally disulfides (if present) from hydrocarbon streams, in particular C4 streams, in the presence of higher dienes, in particular C5 dienes. At the same time, the invention also relates to a process for removing mercaptans and disulfides (if present) from hydrocarbon streams, in particular C4 streams, in one embodiment in the presence of 1-butene, by thioetherification of the mercaptans with polyunsaturated hydrocarbons, wherein the process is carried out in a reactor with addition of hydrogen in the presence of higher dienes, in particular C5 dienes.

公开(公告)号：US10987664B2

公开(公告)日：2021-04-27

申请号：US16298561

申请日：2019-03-11

Applicant: Evonik Operations GmbH

Inventor： Wladimir Reschetilowski ,  Felix Alscher ,  Henrik Frenzel ,  Ekaterina Borovinskaya ,  Cornelia Breitkopf ,  Fabian Nadolny ,  Guido Stochniol ,  Stephan Peitz ,  Robert Franke

IPC: B01J37/03 ,  B01J37/04 ,  B01J37/08 ,  C01B39/04 ,  B01J35/10 ,  B01J37/02 ,  B01J37/00 ,  B01J21/12 ,  B01J29/04 ,  B01J29/072 ,  C07C2/12 ,  C07C2/10 ,  B01J35/00 ,  C07C11/08 ,  B01J31/02 ,  B01J23/755 ,  B01J29/46

Abstract: A process for preparing an oligomerization catalyst is based on using nickel aluminosilicate that has high activity and selectivity coupled with adequate service life in the heterogeneously catalysed oligomerization of C3 to C6 olefins or olefin-containing feed mixtures based thereon.

公开(公告)号：US10850261B2

公开(公告)日：2020-12-01

申请号：US16291144

申请日：2019-03-04

Applicant: Evonik Operations GmbH

Inventor： Fabian Nadolny ,  Stephan Peitz ,  Guido Stochniol ,  Helene Reeker ,  Angela Heykamp ,  Reiner Bukohl ,  Robert Franke ,  Thomas Quandt

IPC: C07C2/10 ,  B01J23/02 ,  B01J23/755 ,  B01J35/00 ,  B01J35/02 ,  B01J35/10 ,  B01J37/00 ,  B01J21/12 ,  C07C11/02

Abstract: The invention relates to an oligomerization catalyst comprising nickel oxide and silica-alumina support material and to a process for oligomerization of C3- to C6-olefins using the oligomerization catalyst.

公开(公告)号：US20200216376A1

公开(公告)日：2020-07-09

申请号：US16713301

申请日：2019-12-13

Applicant: Evonik Operations GmbH

Inventor： Stephan Peitz ,  Guido Stochniol ,  Markus Winterberg ,  Jörg Schallenberg ,  Armin Matthias Rix ,  Andreas Wolff

IPC: C07C7/163 ,  B01J19/00 ,  C07C5/05

Abstract: The present invention provides a two-stage process for removing polyunsaturated hydrocarbons from C4 hydrocarbon streams that, in addition to C4 hydrocarbons, also contain C5 hydrocarbons and mercaptans and/or disulfides.