Ozone Generator Feed Gas System
Ozone is produced from oxygen by corona discharge. The oxygen source must be extremely dry (dew point less than
-100 degree F) in order to maintain good efficiency in the ozone generation process and to prevent damage to the ozone
generator and its components. The three principal feed gases are dried air, oxygen concentrated from air on site using
pressure swing adsorption (PSA) and liquid oxygen (LOX)
The selection of feed gas is primarily an economic decision. Pure oxygen allows for the most efficient operation of the
ozone generator and down stream processes, but these benefits are off set by the cost of the oxygen (either made on
site or purchased).
In some cases, for the purpose of chemical reaction, high concentrations of ozone are required. Air fed ozone
generators can only make up to 4% ozone and more typically 2-3% ozone. Oxygen fed systems can produce 6-15%
ozone and more typically 6-10% ozone.
For the most part, smaller systems use air feed or oxygen from PSA. Larger systems typically use LOX. As noted above
the final decision is often dictated by the site specific economics which take into account the local cost of LOX, power
costs, capital costs, method of mixing ozone with water, reliability of LOX supply, predicted cost increases in LOX and
various other factors.
It is worth noting that one of the benefits of using oxygen is that the ozone generator is typically smaller than for a system
using dry air. While this is an advantage in terms of capital cost, it also means that a switch back to air would create a
significant reduction in capacity. On the other hand switching an air fed system to oxygen will significantly increase the
capacity of the system (in cases where the ozone generator can operate on both feeds, Spartan ozone generators can
be switched readily from air to oxygen)
A detail discussion on each type of gas feed system and gas feed economics can be found by following the links below
Ozone is produced from oxygen by corona discharge. The oxygen source must be extremely dry (dew point less than
-100 degree F) in order to maintain good efficiency in the ozone generation process and to prevent damage to the ozone
generator and its components. The three principal feed gases are dried air, oxygen concentrated from air on site using
pressure swing adsorption (PSA) and liquid oxygen (LOX)
The selection of feed gas is primarily an economic decision. Pure oxygen allows for the most efficient operation of the
ozone generator and down stream processes, but these benefits are off set by the cost of the oxygen (either made on
site or purchased).
In some cases, for the purpose of chemical reaction, high concentrations of ozone are required. Air fed ozone
generators can only make up to 4% ozone and more typically 2-3% ozone. Oxygen fed systems can produce 6-15%
ozone and more typically 6-10% ozone.
For the most part, smaller systems use air feed or oxygen from PSA. Larger systems typically use LOX. As noted above
the final decision is often dictated by the site specific economics which take into account the local cost of LOX, power
costs, capital costs, method of mixing ozone with water, reliability of LOX supply, predicted cost increases in LOX and
various other factors.
It is worth noting that one of the benefits of using oxygen is that the ozone generator is typically smaller than for a system
using dry air. While this is an advantage in terms of capital cost, it also means that a switch back to air would create a
significant reduction in capacity. On the other hand switching an air fed system to oxygen will significantly increase the
capacity of the system (in cases where the ozone generator can operate on both feeds, Spartan ozone generators can
be switched readily from air to oxygen)
A detail discussion on each type of gas feed system and gas feed economics can be found by following the links below
Spartan Environmental Technologies
Air and Water Treatment
Air and Water Treatment
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
Spartan Environmental
Technologies, L.L.C.
7383 Lauren J Dr
Mentor, OH 44060
USA
Phone: 800-492-1252
Fax: 440-368-3569
E-mail: info@
spartanwatertreatment.com
Technologies, L.L.C.
7383 Lauren J Dr
Mentor, OH 44060
USA
Phone: 800-492-1252
Fax: 440-368-3569
E-mail: info@
spartanwatertreatment.com