公开(公告)号：US10882028B2

公开(公告)日：2021-01-05

申请号：US16293717

申请日：2019-03-06

Applicant: Evonik Operations GmbH

Inventor： Fabian Nadolny ,  Stephan Peitz ,  Guido Stochniol ,  Helene Reeker ,  Wladimir Reschetilowski

IPC: B01J23/78 ,  B01J21/12 ,  B01J35/02 ,  B01J35/10 ,  B01J37/00 ,  B01J37/02 ,  B01J37/04 ,  B01J37/08 ,  C07C2/12 ,  B01J23/755 ,  C07C2/10 ,  B01J35/00 ,  B01J23/02

Abstract: The present invention relates to an oligomerization catalyst for oligomerization of low-molecular-weight olefins, to the use of said catalyst and to a process for oligomerization of low-molecular-weight olefins using the oligomerization catalyst according to the invention.

公开(公告)号：US20200216763A1

公开(公告)日：2020-07-09

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 ,  C10G55/06 ,  C07C319/18

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：US10647630B2

公开(公告)日：2020-05-12

申请号：US15000837

申请日：2016-01-19

Applicant: Evonik Operations GmbH

Inventor： Guido Stochniol ,  Stephan Peitz ,  Dietrich Maschmeyer ,  Helene Reeker ,  Joerg Schallenberg

IPC: C07C2/24 ,  C07C7/04 ,  C07C2/10

Abstract: A process for the combined preparation of at least butene and octene from ethane, proceeds by a) providing an inert solvent having a boiling point or boiling range below the boiling point of butene; b) providing a first feed mixture comprising at least the inert solvent and ethene dissolved therein; c) converting the first feed mixture in a first synthesis; d) in the first synthesis, oligomerizing at least a portion of the ethene present in the first feed mixture in the presence of a first heterogeneous catalyst and in the presence of the inert solvent to obtain a first reaction mixture comprising at least the inert solvent, butene, hexene and octene; e) working-up of the first reaction mixture and/or a substance stream based thereon into a low boiler fraction comprising the inert solvent, at least one C4-fraction comprising butenes, a C6-fraction comprising hexenes, a C8-fraction comprising octenes and into a C8+-fraction comprising hydrocarbons having more than eight carbon atoms; f) using at least a portion of the low boiler fraction for providing the first feed mixture; g) providing a second feed mixture comprising at least hexene and ethene dissolved in the hexene using at least a portion of the C6-fraction; h) converting the second feed mixture in a second synthesis, wherein the second synthesis is spatially separated from the first synthesis; i) in the second synthesis, reacting at least a portion of the ethene present in the second feed mixture with at least a portion of the hexene present in the second feed mixture in the presence of a second heterogeneous catalyst to obtain a second reaction mixture comprising at least octene; and k) joint working-up of the second reaction mixture with the first reaction mixture or with the substance stream based thereon.

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：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：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：US11254625B2

公开(公告)日：2022-02-22

申请号：US15929599

申请日：2020-05-12

Applicant: Evonik Operations GmbH

Inventor： Stephan Peitz ,  Guido Stochniol ,  Reiner Bukohl ,  Helene Reeker ,  Niklas Paul

IPC: C07C2/10 ,  B01J23/78

Abstract: Oligomerization of C3- to C5-olefins using a catalyst is inhibited, wherein the oligomerization is carried out in at least one reaction stage including at least one reactor and at least one distillation column, and wherein the oligomer content in the feed stream to the at least one reactor of the at least one reaction stage is at least 1% by weight.