Norio Tahara

Ozone Storage Oriented to Power Load Leveling

Abstract This paper investigates the ozone storing properties of silica gel. There are three kinds of storing technologies for ozone at present: First, ozone gas is stored at high pressure in a gaseous state. As ozone is used, it is discharged from the container. Second, silica gel (which stores ozone at low temperatures) is able to adsorb ozone. When the silica gel is heated, ozone becomes detached. Third, silica gel that is stored under high atmospheric pressure can adsorb ozone. To detach ozone, the atmospheric pressure is reduced. It has been found that it is unnecessary to change the temperature and pressure inside the container when removing ozone from silica gel. This means that ozone can be detached from silica gel using very little energy. This system is proposed for storing ozone in industry, and this system is effective for Power Load Leveling.

Method for making higher concentration ozone than supplied O3derived from condensing process using ozone storage under the same conditions

We have been researching ozone storage using a silica gel that functions as an adsorbent. We found that ozone stored in silica gel was, once released, higher in concentration than the original ozone that was produced by an ozone generator powered by an electrical discharge. Additionally, this method of storage led to an increase in ozone concentration without the need for any additional energy. When ozone was stored in silica gel, it changed from a gaseous state to a liquid state via a vapor state in narrow capillaries according to Kelvins law. When ozone was desorbed, it was concentrated depending on the changing of the form from a liquid state to a gaseous state via a supercritical fluids state in the narrow capillaries.