Linde Aktiengesellschaft

Saudi Basic Industries Corporation

Sabic Global Technologies B.v.

Linde Gmbh

Clariant International Ltd

Technische Universitat Munchen

Basell Polyolefine Gmbh

Andreas Meiswinkel

Heinz Bölt

Wolfgang Müller

Anina Wöhl

Shahid Azam

Marco Harff

Mohammed Hassan Al-Hazmi

Uwe Rosenthal

Normen Peulecke

Florian Winkler

Mathieu Zellhuber

Martin Schubert

Bernd H Müller

Abdullah Alqahtani

Fuad Mosa

Abdullah Al-Qahtani

Ralf Noack

Stephan Peitz

Helmut Fritz

Anton Wellenhofer

Karl-Heinz Hofmann

Hans-Jörg Zander

Dafer Mubarak Alshahrani

Abdulmajeed Mohammed Al-Hamdan

Anina Woehl

Tobias Meier

Peter M Fritz

Wolfgang Peter Mueller

Shehzada Khurram

Richard Schneider

Abduljelil Iliyas

Christian Thaller

Abdullah Saad Al-Dughaither

Sebastiano Licciulli

Bhaskar Reddy Aluri

Andreas Metzner

Bernd Mueller

Gerhard Mestl

Klaus Wanninger

Vugar O Aliyev

Peter Scheck

Johannes Lercher

Heinz Boelt

Volker Göke

Sultan Eid Al-Otaibi

Maria Cruz Sanchez-Sanchez

Volker Goeke

Nicole Schödel

Syriac Palackal

Sultan Al-Otaibe

Ernst Haidegger

Carsten Taube

Bernd Muller

Desislava Tota

Bernd H Mueller

Hans-Jorg Zander

Mohammed Zahoor

Khalid Al-Eidan

Abdullah Al-Dugathier

Mohammed Al-Masned

Hans-Jorge Zander

Anton Kirzinger

Sonja Schulte

Andre Porebski

Ricardo Bermejo De Val

Sean McCracken

Wolfgang Mueller

Shahid Majeed Azam

Lars-Erik Gärtner

Daniela Hartmann

Andre Cornelis Van Veen

Abdullah Saad Al-Dughaiter

Ayed Al-Ayed

Gabriel Waurick

Mohammed H Al-hazmi

Josef Freisinger

Abdullah Mohammad Al-Qahtani

Marco Marco Harff

Gunther Kracker

Abdellah Al-Dugathier

Abdullah Mohammed Al-Qahtani

Bashkar Reddy Aluri

Marco Haff

Aliyev Vugar

Lars-Erik Gartner

Anina WÖHL

Bernd MÜLLER

Peter Fritz

Shahid Khurram

Wolfgang MÜLLER

Wofgang Müller

A method for producing a target compound includes distributing a feed mixture containing ethane to multiple reaction tubes of a shell-and-tube reactor arranged in parallel, and subjecting to an oxidative catalytic conversion of the ethane in the reaction tubes. The catalytic reaction is carried out by means of catalysis zones with different activity arranged in series in the reaction tubes. One or more catalytically active materials and one or more catalytically inactive materials are provided in each of the catalysis zones. The different activity of the catalysis zones is effected by providing the one or more catalytically active materials having identical or essentially identical basic formulation, wherein the one or more catalytically active materials is or are prepared using different calcination intensities.

Process and system for preparing a target compound

Producing a product hydrocarbon includes subjecting a feed mixture containing a feed hydrocarbon and oxygen to selective oxidation to obtain a product mixture containing product hydrocarbon and water. A subsequent mixture is formed from a portion of the product mixture by separating a portion of the water. Oxygen in the feed mixture is partially converted during the selective oxidation, so that the product mixture has a first residual oxygen content and the subsequent mixture has a second residual oxygen content. Detection of the first and/or the second residual oxygen content is performed using a first measuring device. A second measuring device at the end of the catalyst bed detects temperature. Using a process control and/or evaluation unit, measurement data of the first and/or second measuring device(s) are detected and are evaluated and/or processed while obtaining follow-up data. Process control is carried out on the basis of the follow-up data.

Process and system for producing a product hydrocarbon

The invention relates to a method for producing one or more olefins and one or more carboxylic acids, in which one or more paraffins is or are subjected to an oxidative dehydrogenation. For the oxidative dehydrogenation, a reactor () having a plurality of reaction zones () is used, a gas mixture comprising the one or more paraffins is successively passed through the reaction zones (), and at least two of the reaction zones () are subject to varying temperature influences. The invention also relates to a corresponding system ().

Method and system for producing one or more olefins and one or more carboxylic acids

A process () is proposed for the production of one or more olefins, in which a reaction feed containing oxygen and one or more paraffins is formed and in which a part of the oxygen in the reaction feed is reacted with a part of the one or more paraffins to form the one or more olefins by an oxidative process, to obtain a process gas, the process gas containing at least the unreacted part of the one or more paraffins and oxygen, the one or more olefins, one or more acetylenes, carbon dioxide and water. The process comprises subjecting the process gas or a gas mixture formed using at least a part of the process gas partially or completely to a condensate separation (), a compression (), an at least partial removal () of the oxygen and acetylene(s) and to one or more stages of a carbon dioxide removal () in the order given herein, wherein the at least partial removal () of the oxygen and of the acetylene(s) is performed at the same time and by a catalytic conversion using a catalyst comprising copper oxide or ruthenium, and wherein the catalytic conversion is performed at least in part in the form of a hydrogenation. A corresponding plant is also the subject of the present invention.

Method and system for producing one or more olefins

A method for preparing a homogenous catalyst for the production of linear alpha olefins includes: preparing a first pre-catalyst solution comprising a modifier and an organoaluminum compound in a first solvent wherein the first pre-catalyst solution is reacted and stored in a first vessel for a period of time of 1 hour to 90 days; preparing a second pre-catalyst solution comprising a second solvent, a ligand, and a chromium containing compound, wherein the second pre-catalyst solution is stored in a second vessel for a period of time of 1 hour to 90 days; and after a period of time, adding the first pre-catalyst solution to a catalyst pre-formation unit; after the same period of time, adding the second pre-catalyst solution to the catalyst pre-formation unit; forming a homogenous catalyst by mixing the first pre-catalyst solution and the second pre-catalyst solution; adding the homogeneous catalyst to a reaction vessel, wherein the reaction vessel comprises an alpha olefin; and forming the linear alpha olefin by mixing the homogeneous catalyst and the homogenous catalyst.

Method for preparation of homogenous catalyst for selective 1-hexene production

A method for preparing a homogenous catalyst for use in preparing a linear alpha olefin includes: preparing a first pre-catalyst solution by mixing a chromium source and a ligand in a first solvent, wherein the first pre-catalyst solution is stored in a first vessel; preparing a second pre-catalyst solution by mixing an organoaluminum compound and a modifier in a second solvent, wherein the second pre-catalyst solution is stored in a second vessel; and simultaneously feeding the first pre-catalyst solution and the second pre-catalyst solution directly into a reaction vessel, wherein the reaction vessel includes a third solvent.

Method for preparation of a catalyst solution for selective 1-hexene production

A method of column control includes: passing a feed stream and a make-up stream through a column; withdrawing an overhead fraction from the column; purging at least a portion of the overhead fraction; cooling at least a portion of the overhead fraction in a heat exchanger and passing it through a reflux drum; withdrawing a purge stream and a distillate stream from the reflux drum, wherein the distillate stream has a constant flow rate; recycling at least a portion of the distillate stream back to the column; and passing at least a portion of the distillate stream to a downstream process.

Method of column control

A process for producing ethylene and acetic acid is proposed in which an ethane- and oxygen-containing reaction input stream is formed and a portion of the ethane and of the oxygen in the reaction input stream is converted into the ethylene and the acetic acid by oxidative dehydrogenation to obtain a process gas, wherein the process gas contains the unconverted portion of the ethane and of the oxygen, the ethylene and the acetic acid and also water. It is provided that the process comprises adjusting in the process gas a water partial pressure according to a specified product ratio of the acetic acid to the ethylene to a value in a range between 0.7 and 5 bar (abs.). A corresponding plant () likewise forms part of the subject matter of the present invention.

Process and plant for producing ethylene and acetic acid

The invention relates to a process for producing an olefin in which a reaction input stream containing at least one paraffin, oxygen and water is formed and in which a portion of the paraffin and of the oxygen in the reaction input stream is converted into the olefin by oxidative dehydrogenation using a catalyst to obtain a process gas, wherein the process gas contains at least the unconverted portion of the paraffin and of the oxygen, the olefin and the water from the reaction input stream. It is provided that at least one parameter which indicates an activity of the catalyst is determined and that an amount of the water in the reaction input stream is adjusted on the basis of the at least one determined parameter. A corresponding plant () likewise forms part of the subject matter of the invention.

Process and plant for producing an olefin

The present invention relates to a method for preparing a catalyst composition for the oligomerization of ethylene and a respective catalyst composition pre-formation unit.

Method for preparing a catalyst composition for oligomerization of ethylene and respective catalyst composition pre-formation unit

A method for processing an oligomerization product stream includes discharging the oligomerization product stream from an oligomerization reactor through a product outlet line, and heating the oligomerization product stream, heating a wall of the product outlet line, or both. The oligomerization product stream includes solvent, linear alpha olefins, a polymer byproduct, or a combination of at least one of the foregoing. The heating is to a temperature that is greater than the melting temperature of the polymer byproduct present in the oligomerization product stream.

Method for processing an oligomerization product stream

The present invention relates to a catalyst composition and a process for the oligomerization of ethylene to produce 1-hexene or 1-octene, wherein the catalyst composition comprises a chromium compound; an NPNPN ligand of the formula (R) (R)N&#x2014;P(R)&#x2014;N(R)&#x2014;P(R)&#x2014;N(R)(R), wherein R, R, R, R, R, Rand Rare each independently hydrogen, halogen, amino, trimethylsilyl or C-Chydrocarbyl, preferably straight-chain or branched C-Calkyl, phenyl, C-Caryl or C-Calkyl-substituted phenyl.

Catalyst composition and process for oligomerization of ethylene to produce 1-hexene and/or 1-octene

A process for deactivation of an olefin oligomerization catalyst is described, including contacting a catalyst composition with a catalyst quenching medium to form a deactivated catalyst composition, and recovering excess catalyst quenching medium. The catalyst quenching medium includes an alcohol having at least 6 carbon atoms, an organic amine, an amino alcohol, or a combination comprising at least one of the foregoing. The catalyst quenching medium is present in a molar ratio of catalyst quenching medium to catalyst of at least 3:1. A process for the oligomerization of an olefin is also described, including feeding the olefin, a solvent, and a catalyst composition into a reactor, oligomerizing the olefin in the reactor to form a reaction product stream including linear alpha olefins, solvent, and the catalyst composition, and contacting the reaction product stream with a catalyst quenching medium.

Process for deactivation of an olefin oligomerization catalyst

A catalyst composition including: (a) a chromium compound; (b) a ligand of the general structureRRP&#x2014;N(R)&#x2014;P(R)&#x2014;NRRor&#x2003;&#x2003;(A)RRP&#x2014;N(R)&#x2014;P(XR)Ror RRP&#x2014;N(R)&#x2014;P(XR), with X&#x2550;O or S,&#x2003;&#x2003;(B)wherein R, R, R, R, R, R, Rand Rare independently C-C-alkyl, C-C-aryl, C-C-cycloalkyl, aralkyl, alkylaryl, or trialkylsilyl, or any cyclic derivatives of (A) and (B), wherein at least one of the P or N atoms of the PNPN-unit or PNP-unit is a member of the ring system, the ring system being formed from one or more constituent compounds of structures (A) or (B) by substitution; and (c) an activator or co-catalyst; and a process for tri- and/or tetramerization.

Catalyst composition and process for oligomerization of ethylene

The present invention relates to a process for the oligomerization of ethylene, comprising: a) oligomerization of ethylene in a reactor in the presence of solvent and catalyst; b) transferring reactor overhead effluent to an externally located cooling device and recycling condensed effluent into the reactor; c) transferring the reactor bottom effluent to a series of fractionation columns and, in the following order, i) optionally separating a Cfraction, ii) separating a Cfraction, iii) simultaneously separating Cand Cfractions and recycling thereof into the reactor , and iv) separating residues comprising &#x2265;Cfractions, spent catalyst polymer material and quench media, from the process, wherein the solvent is separated in any of the steps i)-iv)and/or in an additional step.

Process for oligomerization of ethylene

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Munich, Germany

Andreas Meiswinkel