Linde Aktiengesellschaft

Linde Gmbh

Christian Voss

Helmut Fritz

Andreas Peschel

Martin Bauer

Werner Leitmayr

Tobias Keller

Akos Tota

Frank Jennewein

Rainer Hoffmann

Martin Lang

Matthias Grahl

Volker Göke

Helko Schneider

Andreas Seliger

Rachid Mabrouk

Josef Schwarzhuber

Klemens Wawrzinek

Gabriel Salazar Duarte

Philipp Keil

Benedikt Schürer

Matthias Johannink

Patrick Schiffmann

Volker Witzleb

Gabriel Duarte Salazar

Benedikt SCHÜRER

A membrane separation unit wherein the membrane separation unit has a pressure vessel and a membrane provided inside the pressure vessel in a membrane arrangement, and wherein the pressure vessel has an inlet nozzle for a feed gas mixture, an outlet nozzle for a permeate and an outlet nozzle for a retentate. The membrane separation unit has in this case measurement means that are arranged at least partially inside the pressure vessel and/or inside the inlet nozzle for the feed gas mixture and/or inside the outlet nozzle for the permeate and/or inside the outlet nozzle for the retentate and are set up to record one or more parameters relevant to operation.

Membrane separation unit, arrangement of membrane separation units, and membrane separation process

The invention relates to a process () for producing liquefied natural gas using a feedstock mixture that contains at least methane, one or more components boiling at a temperature lower than methane and one or more hydrocarbons boiling at a temperature higher than methane, wherein the hydrocarbon(s) boiling at a temperature higher than methane comprise one or more hydrocarbons freezing at a higher temperature, with a freezing point higher than &#x2212;50&#xb0; C. According to the invention the feedstock mixture is fed into a pressure swing adsorption process (), in which a first fraction containing methane and a second fraction containing methane are formed, the first fraction containing methane contains, in addition to the methane, at least the predominant portion of the components of the feedstock mixture that boil more readily than methane and is low in or free from the hydrocarbons boiling less readily than methane, and the second fraction containing methane contains, in addition to the methane, at least the predominant portion of the hydrocarbons from the feedstock that boil less readily than methane and is low in or free from the components that boil more readily than methane, and the first fraction containing methane, or a portion thereof, is supplied for liquefaction (). The invention also relates to a corresponding plant.

Process and plant for producing liquefied natural gas

The invention relates to a process for recovering hydrogen (b) from crude gas (a) from a coke oven () in which the crude gas (a) produced in the coke oven () is initially compressed and in which impurities are subsequently removed from the crude gas (a) by pressure swing adsorption, wherein oxygen is depleted from the crude gas (a) using nonthermal plasma prior to the pressure swing adsorption, and to a plant for recovering hydrogen from crude gas.

Method and installation for obtaining hydrogen

A process for producing an adsorption unit is disclosed, wherein an adsorber bed of the adsorption unit is filled with a bed of an adsorbent which is selected from a multitude of adsorbents by a test method, wherein, in the test method, a particle of each adsorbent is repeatedly laden with a sorbate and regenerated again, which converts the particle to an aged particle, and a fracture property B of the aged particle of each adsorbent is determined, wherein the adsorbent for the bed is selected depending on the fracture property B determined from the multitude of adsorbents.

Process for producing an adsorption unit and adsorption unit

A process for producing and purifying a synthesis gas stream that contains CO- and H-produced from a hydrocarbon-containing feed in a gas production unit. COis separated from the synthesis gas stream and CO is cryogenically separated from the synthesis gas stream. COthat makes up 5% to 30% by volume in the synthesis is reduced to less than 10 ppm by volume by temperature swing adsorption. The temperature swing adsorption takes place upstream of the cryogenic separation of CO. The COis adsorbed using a disordered adsorbent bed wherein the adsorbent is cooled by means of indirect heat transfer from the adsorbent to the heat transfer medium during adsorption and the adsorbent loaded with COis heated by indirect heat transfer from the heat transfer medium to the adsorbent to effect desorption of CO.

Process for producing and purifying a synthesis gas

A method of obtaining helium from a process gas. The process gas is at a pressure less than 15 bar to a first membrane separation stage having a first membrane more readily permeable for helium than for at least one other component in the process gas. A first retentate stream is fed to a second membrane separation stage having a second membrane more readily permeable for helium than for at least one other component in the process gas. Helium is separated from a first helium-containing permeate stream using a pressure swing adsorption to obtain a helium-containing product stream. A second helium-containing permeate stream is recycled to the first membrane separation stage. A purge gas from the pressure swing adsorption is also recycled to the first membrane separation stage.

Combined membrane-pressure swing adsorption method for recovery of helium

A method of obtaining helium from a helium-containing feed gas. Helium-containing feed gas is fed to a prepurifying unit that uses a pressure swing adsorption process to remove undesirable components from the helium-containing feed gas and obtain a prepurified feed gas. The prepurified feed gas is fed to a membrane unit connected downstream of the prepurifying unit and that has at least one membrane more readily permeable to helium than to at least one further component present in the prepurified feed gas. A pressurized low-helium retentate stream that has not passed through the membrane is fed to the prepurifying unit. The pressurized low-helium retentate is used to displace helium-rich gas from an adsorber that is to be regenerated into an already regenerated adsorber.

Method and industrial plant for obtaining helium from a helium-containing feed gas

A method of cleaning a stream of matter that includes a C2+ fraction and a first gaseous substance and a second gaseous substance. The stream of matter is subjected to a pressure swing adsorption to remove the C2+ fraction by means of a membrane to obtain a retentate and a permeate. The first substance is enriched in retentate and depleted in permeate and the second substance is depleted in retentate and enriched in permeate.

Recovery of gases, especially permanent gases, from streams of matter, especially from offgas streams from polymerizations

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Geretsried, Germany

Christian Voss