Method and arrangement for generating oxygen

Abstract

The present invention relates to a method of generating oxygen. The method addresses the objects of reducing the servicing work and improving the purity of the generated oxygen. According to the invention, the method comprises the steps of: providing an oxygen comprising gas at a primary side of a dense voltage drivable membrane; applying a voltage between a conductive element at the primary side of the membrane and a conductive element at a secondary side of the membrane, the conductive elements being electrically connected to the membrane, wherein a plasma is generated at at least one of the primary side and the secondary side of the membrane, the plasma being used as conductive element.

1 . Arrangement for generating oxygen, the arrangement comprising
 a dense voltage drivable membrane having a primary side and a secondary side,   a plasma generation device for generating a plasma at at least one of the primary side and the secondary side of the dense membrane, and   a voltage source for providing a voltage between a plasma being generated by the plasma generation device and a further conductive element, the plasma and the further conductive element being arranged on opposite sides of the membrane.   
     
     
         2 . Arrangement according to  claim 1 , wherein the further conductive element is formed by a plasma. 
     
     
         3 . Arrangement according to  claim 1 , wherein the membrane is based on a material comprising a (MO 2 )-fluorite type oxide, a perovskite type oxide (ABO 3 ), an aurivillius (Bi 2 O 2 )(A n-1 B n O x ) intergrowth phase, a La 2 Mo 2 O 9  oxide, or an apatite A 10-x (SiO 4 ) 6 O 2±δ  lattice. 
     
     
         4 . Arrangement according to  claim 1 , wherein the plasma generation device is arranged separated from an oxygen comprising gas and from a stream of generated oxygen. 
     
     
         5 . Arrangement according to  claim 1 , wherein a gas supplying device for guiding a stream of oxygen comprising gas to the primary side of the membrane is provided. 
     
     
         6 . Arrangement according to  claim 1 , wherein the arrangement is part of an oxygen administration device for therapeutic applications.