Linde Aktiengesellschaft

Praxair Technology, Inc.

Linde Gmbh

Werner Leitmayr

Paul Leitgeb

Christian Voss

Minish Mahendra Shah

Joseph Michael Schwartz

Helmut Fritz

Kihyung Kim

Ulrike Wenning

Martin Bauer

Karl-Heinz Hofmann

Hans-Jörg Zander

Garrett R Swindlehurst

Marian Simo

Luke J Coleman

Tobias Keller

Roland Ritter

Torsten Stoffregen

Akos Tota

Katie Held

Olivier Dube

Keith A Craigie

Hans-joerg Zander

Ralf Müller

Paul R Munsterman

Volker Witzleb

Ana Arevalo-Hidalgo

The process of the present invention provides high recovery and low capital cost giving it an economic advantage over previously known purification processes. The present process has particular applicability to the purification of synthesis gases comprising at least hydrogen (H), carbon monoxide (CO), methane (CH), CO, and HO to obtain a gas stream including at least H, CO, and CH, that is substantially free of HO and CO. The process also has applicability to the purification of natural gases inclusive of at least CH, N, CO, and HO to produce a gas stream including at least CHand N, but which is substantially free of HO and CO.

High recovery process for purification of multicomponent gases

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 present invention is directed to a method and system of purifying hydrogen supplied from a storage cavern, particularly to removing methane and other hydrocarbons from the hydrogen withdrawn from the cavern by using selective adsorption. The adsorbed impurities can be removed from the adsorbent by increasing the temperature, reducing the pressure, or a combination of both.

Method of purifying hydrogen supplied from a storage cavern

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

The invention relates to a process and an apparatus for the treatment of a carbon dioxide-containing gas stream from a large-scale combustion plant, in particular of a power station. The gas stream is separated in a carbon dioxide purification stage R into a gas substream having an increased carbon dioxide content and a gas substream having a reduced carbon dioxide content. The gas substream having an increased carbon dioxide content is fed to a further use and/or storage S. In particular, compression of the carbon dioxide under the ground can reduce the emission of gases which affect the climate. To increase the proportion of compressible CO, it is proposed that the gas substream having a reduced carbon dioxide content is fed to a pressure swing adsorption stage PSA in which a fraction which is rich in carbon dioxide and a fraction which is low in carbon dioxide are produced. The fraction which is rich in carbon dioxide is recirculated to the carbon dioxide purification stage R or is passed directly to further use and/or storage S.

Process and apparatus for the treatment of a carbon dioxide-containing gas stream form a large-scale combustion plant

A process for separating hydrogen from a gas flow having an oxygen constituent and including predominantly hydrogen, nitrogen, oxygen, carbon dioxide, carbon monoxide, methane and/or other hydrocarbons, as well as a device for conducting the process, is disclosed. The gas flow undergoes a process to thermally convert oxygen prior to the pressure swing adsorption process.

Process and device for separating hydrogen from gas flows by a pressure swing adsorption process

In a TSA process of an at least two-component raw gas, to adjust for fluctuation in load, the cycle time of at least one method step is extended in the event of falling below the design load value.

TSA process

Growing community of inventors

Neuburg/Donau, Germany

Werner Leitmayr