Ozone storing method and ozone extracting method

Abstract

An ozone storage apparatus for storing ozone efficiently and extracting ozone effectively is disclosed. Also ozone storage methods comprising the steps of supplying ozone either to a dried silica gel which is produced by neutralizing sodium silicate and sulfuric acid and that is then washed with water to a pH level between 6 and 7 or further processing the dried silica gel by crushing it and washing with at least one of a sulfuric acid or water. The methods also include a process where if oxygen has been adsorbed in the silica gel, a vacuum is created inside the storage container holding the silica gel, and then ozone can be supplied to the silica gel. Silica gel containing aluminum between 0.002-0.1 percent by weight is used for the storage medium. Also, the ozone is extracted from a tube-valve associated with the storage container by a natural downward flow.

What is claimed is:  
     
         1 . A method of storing ozone comprising the steps of: 
 neutralizing sodium silicate and sulfuric acid to form a silica gel;    washing the silica gel with water to a pH level between 6 and 7;    drying the silica gel;    providing the silica gel into a storage container; and    supplying ozone to the silica gel in the storage container.    
     
     
         2 . A method of storing ozone comprising the steps of: 
 neutralizing sodium silicate and sulfuric acid to form a silica gel;    washing the silica gel with water to a pH level between 6 and 7;    drying the silica gel;    crushing and washing the silica gel with at least one of sulfuric acid and water;    providing the crushed and washed silica gel into a storage container; and    supplying ozone to the silica gel in the storage container.    
     
     
         3 . A method of storing ozone comprising the steps of: 
 passing oxygen through a silica gel stored in a container;    creating a vacuum inside the container; and    supplying ozone to the silica gel.    
     
     
         4 . A method of storing ozone comprising the steps of: 
 providing a container with a storage medium therein; and    using a silica gel comprising aluminum in 0.002-0.1% by weight, as the storage medium.    
     
     
         5 . A method of extracting ozone comprising the steps of: 
 extracting ozone adsorbed in a silica gel by a natural downward flow through a tube-valve located in a lower part of a storage container; and    supplying oxygen through an opening located in an upper portion of the storage container at a flow rate that is substantially similar to a flow rate of the natural downward flow of ozone.