Evonik Operations Gmbh

Evonik Degussa Gmbh

Evonik Oxeno Gmbh & Co. Kg

Linde Aktiengesellschaft

Saudi Basic Industries Corporation

Sabic Global Technologies B.v.

Evonik Industries Ag

Stephan Peitz

Guido Stochniol

Helene Reeker

Armin Matthias Rix

Dietrich Maschmeyer

Niklas Paul

Robert Franke

Reiner Bukohl

Fabian Nadolny

Moritz Schröder

Tanita Valèrie Six

Philip Lutze

Frank Geilen

Jörg Schallenberg

Markus Winterberg

Thomas Quandt

Andreas Wolff

Mohammed Hassan Al-Hazmi

Heinz Bölt

Wolfgang Müller

Andreas Meiswinkel

Anina Wöhl

Fuad Mosa

Normen Peulecke

Uwe Rosenthal

Joerg Schallenberg

Dirk Fridag

Katrin Marie Dyballa

Shahid Azam

Horst-Werner Zanthoff

Bernd H Müller

Dieter Hess

Harald Haeger

Helmut Fritz

Johannes Knossalla

Florian Winkler

Peter M Fritz

Andreas Beckmann

Marco Harff

Johannes Lercher

Richard Schneider

Heinz Boelt

Volker Göke

Harald Häger

Oliver Moeller

Maria Cruz Sanchez-Sanchez

Lena Altmann

Anina Woehl

Volker Goeke

Wladimir Reschetilowski

Bhaskar Reddy Aluri

Felix Alscher

Tatina Valèrie Six

Matthias Böse

Cornelia Breitkopf

Stefan Röder

Christian Thaller

Carsten Taube

Benjamin William Berntsson

Martin Oldemeyer

Bernd Muller

Bernd H Mueller

Ralf Boll

Martin Althoff

Andreas Oldenkott

Franz-Josef Stock

Marius Tiesbohnenkamp

Helena Lopez-Fernandez

Tanita Valérie Six

Jorg Schallenberg

Yue Liu

Ricardo Bermejo De Val

Andreas Ehrmaier

Angela Heykamp

Mathias Vogt

Khalid Al-Eidan

Abdullah Al-Dugathier

Ekaterina Borovinskaya

Mohammed Al-Masned

Henrik Frenzel

Matthias Leipold

Anina WÖHL

Mohammed H Al-hazmi

Müller Wolfgang

H Bernd Müller

Mohammed H Al-Masned

Shahid Majeed Azam

Wolfgang MÜLLER

Nadolny Fabian

Bernd MÜLLER

Anja Müller

Harald Hager

Bashkar Reddy Aluri

Abdellah Al-Dugathier

Wolfgang Mueller

A process for removing butenes from C4-hydrocarbon streams containing butanes and butenes involves extractive distillation with a suitable solvent. The process also involves heat integration, which allows utilization of the heat of the solvent for heating and/or at least partly evaporating various streams.

Process for removing butenes from C4-hydrocarbon streams and two-stage evaporation

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.

Process for removing extraneous odour-forming substances from hydrocarbon streams

Energy-efficient process for removing butenes from C4-hydrocarbon streams

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.

Two-stage offgas scrubbing

A method for separating butenes from C4 hydrocarbon streams containing butanes and butenes involves extractive distillation with a suitable solvent, and a subsequent adiabatic oligomerisation. The method also involves heat integration, which makes it possible to use the heat of the solvent in order to heat and/or at least partly evaporate various streams.

Method for separating butenes from C4 hydrocarbon streams, with subsequent oligomerisation

A method for separating butenes from C4 hydrocarbon streams containing butanes and butenes involves extractive distillation with a suitable solvent. The method also involves heat integration, which makes it possible to use the heat of the solvent in order to heat various streams.

Method for preventing three-phase separation of butenes from C4 hydrocarbon streams

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.

Process for removing polyunsaturated hydrocarbons from C4 hydrocarbon streams in the presence of mercaptans, disulfides and C5 hydrocarbons

Energy-efficient process for removing butenes from C4-hydrocarbon streams and subsequent n/iso separation

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.

Extractive distillation column system and the use thereof in the separation of butenes from C4-hydrocarbon streams

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.

Process for oligomerization of isobutene

A process for the oligomerization of C- to C-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.

Process for the oligomerization of olefins with control of the oligomer content in the hydrocarbon streams to be oligomerized

The present invention relates to a process for oligomerization of C2- to C8-olefins in at least two reaction stages, wherein in the last distillation column the reaction mixture is fractionated such that only very small amounts of the reactant olefins and the analogous alkanes remain in the bottom of the distillation column.

Process for oligomerization of olefins with optimized distillation

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.

Oligomerization catalyst and process for the production thereof

Oligomerization of C- to C-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.

Process for inhibiting oligomerization of C3- to C5-olefins

The present invention relates to a process for oligomerization of C2- to C8-olefins in at least two reaction stages, wherein in the last distillation column the reaction mixture is fractionated such that only very small amounts of the oligomers formed remain in the distillate.

Growing community of inventors

Oer-Erkenschwick, Germany

Stephan Peitz