Linde Aktiengesellschaft

Praxair Technology, Inc.

Other

Linde Gmbh

Matthias Grahl

Helko Schneider

Cem E Celik

Arthur C Selover

Sesha Hari Vemuri

Ralph J Mancini

Paul Leitgeb

Christian Voss

Ralph Joseph Mancini

Alfred Bolkart

Philippe Sage

Philipp Keil

Thomas Cichy

Klaus Wildgruber

A system and method of pre-purification of a feed gas stream is provided that is particularly suitable for pre-purification of a feed air stream in cryogenic air separation unit. The disclosed pre-purification systems and methods are configured to remove substantially all of the hydrogen, carbon monoxide, water, and carbon dioxide impurities from a feed air stream and is particularly suitable for use in a high purity or ultra-high purity nitrogen plant. The pre-purification systems and methods preferably employ two or more separate layers of hopcalite catalyst with the successive layers of the hopcalite separated by a zeolite adsorbent layer that removes water and carbon dioxide produced in the hopcalite layers. Alternatively, the pre-purification systems and methods employ a hopcalite catalyst layer and a noble metal catalyst layer separated by a zeolite adsorbent layer that removes water and carbon dioxide produced in the hopcalite layer.

System for pre-purification of a feed gas stream

A system and method of pre-purification of a feed gas stream is provided that is particularly suitable for pre-purification of a feed air stream in cryogenic air separation unit. The disclosed pre-purification systems and methods are configured to remove substantially all of the hydrogen, carbon monoxide, water, and carbon dioxide impurities from a feed air stream and is particularly suitable for use in a high purity or ultra-high purity nitrogen plant. The pre-purification systems and methods preferably employ two or more separate layers of hopcalite catalyst with the successive layers of the hopcalite separated by a zeolite adsorbent layer that removes water and carbon dioxide produced in the hopcalite layers.

Method and system for pre-purification of a feed gas stream

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

Adsorptive decomposition of a gas mixture is performed by vacuum pressure swing adsorption. The gas mixture is condensed to the adsorption pressure by means of at least one condenser prior to being fed into the vacuum pressure swing adsorption process. Regeneration of the adsorber(s) is carried out by means of at least one vacuum pump. The condensed gas mixture () is at least periodically and/or at least partially temporarily stored (S) and/or fed to a consumer at those times when no gas mixture is being fed to the vacuum pressure swing adsorption process; and/or at least one of the vacuum pumps (P) that is not required for the regeneration is used at least occasionally for another application at those times when no regeneration of the adsorber or an adsorber (A, A') is being carried out.

Method and device for vacuum pressure swing adsorption with temporary storage

An arrangement for generating oxygen in a facility is described, which arrangement has at least one unit for generating medical air (V, R), a vacuum system (VS), and a PSA unit (A), which serves to generate an oxygen product stream. According to the invention, the PSA unit (A) and the vacuum system (VS) are interconnected in such a way that the adsorber or adsorbers of the PSA unit (A) can be regenerated by means of the vacuum system (VS), and/or the unit for generating medical air (V, R) is connected to the PSA unit (A) in such a way that at least a subsidiary stream () of the generated medical air is delivered as feed gas to the PSA unit (A).

Generating oxygen in hospitals

Growing community of inventors

Munich, Germany

Matthias Grahl