Linde Aktiengesellschaft

Linde Gmbh

Siemens Aktiengesellschaft

Boehringer Ingelheim International Gmbh

Siemens Energy Global Gmbh & Co. Kg

Andreas Peschel

Helmut Fritz

Günter Schmid

Dan Taroata

Mathieu Zellhuber

Marc Hanebuth

Benjamin Hentschel

Andreas Obermeier

Thomas Bartesch

Johannes Fendt

Harald Klein

Klaus Bergemann

Christian Voss

Tuat Pham Duc

Clara Delhomme-Neudecker

Friedrich Gotz

Nicole Schödel

Umberto Cardella

Desislava Tota

Gabriel Salazar Duarte

Friedrich G&ouml;tz

Rolf-G&uuml;nther Werner

Clara Delhomme

Ute Koller

Steffen Fahr

Thomas Cichy

Rolf-Gunther Werner

Benedikt SCHÜRER

The invention relates to a method () for the electrolytic production of a liquid hydrogen product (), in which a water-containing feed is subjected to an electrolysis (E) while receiving an anode raw gas (), rich in oxygen and containing hydrogen, and a cathode raw gas () which is depleted of oxygen and rich in hydrogen, wherein the cathode raw gas () downstream of the electrolysis (E) is subjected to a purification (R), a compression (K), and a liquefaction (L), characterized in that the cathode raw gas () at least partially undergoes intermediate storage (Z) downstream of the electrolysis (E) and upstream of the liquefaction (L). A corresponding installation is also proposed.

Method and installation for the electrolytic production of liquid hydrogen

An electrolysis system and an electrolysis method wherein the electrolysis system includes a pressure-electrolytic cell and a throttle in the catholyte line, by which the catholyte flow can be divided into a gas and liquid phase. In this way, (by-)products of the electrolysis can be recycled, while the electrolytic cell can be operated effectively at a high pressure.

Electrochemical production of carbon monoxide and/or syngas

Proposed is a process for producing ethylene wherein using a dehydrogenation of ethane a process gas containing at least ethane, ethylene and compounds having a lower boiling point than ethane and ethylene is formed, wherein using at least a part of the process gas a separation input is formed and subjected to a low-temperature separation () in which the separation input is cooled and in which one or more condensates are separated from the separation input, wherein the condensate(s) are at least partly subjected to a low-temperature rectification to obtain a gaseous first fraction and a liquid second fraction, wherein the gaseous first fraction contains at least the ethane and the ethylene in a lower proportion than in the separation input and the compounds having a lower boiling point than ethane and ethylene in a higher proportion than in the separation input. It is provided that the first fraction is at least partly subjected to a pressure swing adsorption () by means of which a third fraction containing predominantly or exclusively ethylene and ethane and a fourth fraction containing predominantly or exclusively methane and carbon monoxide are formed. A corresponding plant () likewise forms part of the subject matter of the present invention.

Method and plant for producing ethylene

A device for the electrochemical production of a product containing CO, and a method for the electrochemical production of a product containing CO, in which a return of a material stream containing the educt and CO is carried out after the electrochemical production.

Method for the electrochemical production of a gas product containing CO

A process for producing an olefin having N carbon atoms is proposed in which using a dehydrogenation a process gas is formed which contains at least the olefin having N carbon atoms, a paraffin having N carbon atoms and a hydrocarbon having N&#x2212;1 carbon atoms and in which using at least a portion of the process gas a separation input is formed which is subjected to a low temperature separation in which the separation input is cooled stepwise over a plurality of temperature levels and condensates are separated from the separation input, wherein the condensates are at least partly subjected to a first low temperature rectification to obtain a first gas fraction and a first liquid fraction, wherein the first gas fraction contains at least the olefin having N carbon atoms in a lower proportion than in the condensates and the hydrocarbon having N&#x2212;1 in a higher proportion than in the condensates. It is provided that the first gas fraction is at least partly subjected to a second low temperature rectification using a liquid reflux containing predominantly or exclusively the hydrocarbon having N&#x2212;1 carbon atoms in which the first gas fraction undergoes depletion in the olefin having N carbon atoms. A corresponding plant () likewise forms part of the subject matter of the invention.

Process and plant for producing an olefin

A process for producing ethylene is proposed in which an ethane- and oxygen-containing reaction input is formed and a portion of the ethane and of the oxygen in the reaction input is converted into ethylene and into 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 and wherein the process gas is subjected to a water quench. It is provided that the water quench comprises introducing the process gas into a scrubbing column () into which in at least two different column portions respective aqueous, liquid scrubbing medium streams are introduced and run in countercurrent to the process gas. A corresponding plant () likewise forms part of the subject matter of the invention.

Process and plant for producing olefins

A process is proposed for production of dimethyl ether (DME) from synthesis gas (SG), in which at least one feed stream formed from synthesis gas (SG) is subjected to at least one synthesis step, in which components present in the feed stream are at least in part converted to dimethyl ether (DME), wherein at least one crude product stream is obtained which contains at least dimethyl ether (DME) and the unreacted components of the feed stream. The feed stream contains at least hydrogen, carbon monoxide and carbon dioxide, and has a stoichiometric number of 2.0 to 5.0. The feed stream further contains 4 to 20 mol percent carbon dioxide, and the ratio of carbon dioxide to carbon monoxide in the feed stream is in a range from 0.5 to 4. The at least one synthesis step is carried out under isothermal conditions. A system for production of dimethyl ether (DME) from synthesis gas (SG) is likewise subject matter of the present invention.

Method and system for obtaining dimethyl ether from syngas

A method for the processing, by separation technology, of a product stream (g), containing at least dimethyl ether, methanol, water, carbon dioxide, carbon monoxide and hydrogen, from a reactor () used for the synthesis of dimethyl ether (z) from synthesis gas (e), is proposed. The product stream (g) is fed, in at least partially gaseous form, into an absorption column () operated with a liquid reflux, a gaseous top stream (m) being removed from the absorption column () at the top and a liquid sump stream (p) being removed at the bottom. The sump stream (p) is at least partially fed into a first distillation column (), a gaseous transfer stream (q) containing dimethyl ether and a stream (r) predominantly containing methanol and/or water being removed from the first distillation column (). The top stream (m) is at least partially cooled initially to a first temperature level and subsequently further cooled to one or more further temperature levels, a first condensate stream (n) being formed after the cooling to the first temperature level and one or more further condensate streams (s, t) being formed after the further cooling to the further temperature level or levels. The first condensate stream (n) is partially used to form the liquid reflux and the further condensate stream or streams (s, t) is or are at least partially fed into a further distillation column (), from which a liquid stream (z) predominantly containing dimethyl ether and poor in or free from carbon dioxide is removed at the bottom. The invention also relates to a corresponding separation apparatus and an apparatus () for producing dimethyl ether.

Separation processing method for a product stream of a dimethyl ether reactor

A method for the processing, by separation technology, of a gas mixture (k) which is formed from a product stream (d) of a reactor () for synthesizing dimethyl ether from synthesis gas (b), and which contains at least dimethyl ether, carbon dioxide and at least one other component which is lower-boiling than carbon dioxide, is proposed. The gas mixture (k) is cooled at a first pressure level from a first temperature level to a second temperature level and a fraction of the gas mixture (k) that remains in gaseous form at the second temperature level is washed in an absorption column () with a reflux (v) predominantly containing carbon dioxide. The reflux (v) predominantly containing carbon dioxide is at least partially formed from a fraction of the gas mixture (k) which is separated in liquid form during the cooling.

Processing by a separation technique of a gas mixture formed from a product stream of a dimethyl reactor

A process for preparing one or more reaction products, in which a first methane-rich feed stream is subjected to a partial oxidation process and/or an autothermal reforming process and a second methane-rich feed stream is subjected to a steam reforming process, in which a first synthesis gas-containing output stream is formed from the first methane-rich feed stream and a second synthesis gas-containing output stream is formed from the second methane-rich feed stream and these synthesis gas streams are used to form a collective synthesis gas stream and fluid from the collective synthesis gas stream is subjected to a molecular weight-increasing reaction in a synthesis feed stream to obtain a synthesis output stream comprising carbon dioxide and the reaction product(s). At least one carbon dioxide-rich first recycle stream is formed from fluid from the synthesis output stream and fluid from the first recycle stream is subjected to the steam reforming process.

Process and plant for preparation of one or more reaction products

The invention relates to advantageous processes for preparing heterologous proteins in prokaryotic host cells by improved codon use and/or expression of tRNAs which code for codons occurring rarely in said host cell.

Preparation of a recombinant protein in a prokaryotic host cell

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Wolfratshausen, Germany

Andreas Peschel