Applications Using Oxygen Generation
An industrial oxygen generator is used in the production of both ferrous and nonferrous metals for two main purposes:
By replacing some or all of the combustion air in the burners that are used in melting furnaces, flame temperature and heat transfer are increased while there is a significant reduction in exhaust gas volume and content (e.g. NOx, VOC’s). The combustion reaction of methane (natural gas) is shown below:
The nitrogen in the air does not enter into the combustion reaction and actually contributes to the energy losses due to the hot exhaust gases leaving the furnace by as much as 40-50%. By adding oxygen to the combustion air, the concentration of nitrogen is significantly reduced depending on the percentage of oxygen enrichment. The major benefits of oxygen combustion are:
In general, there are three types of oxygen combustion process:
Oxy-fuel burners have been developed for a wide range of metal production furnaces, including:
It is necessary to insure the proper supply of oxygen to the combustion system. In terms of oxygen purity, it has been determined that 90% and higher will provide the maximum benefits of productivity improvement and fuel savings. In that regard, PCI’s full line of DOCS oxygen production units are ideally suited for these combustion applications.
The substitution of conventional air-fuel burners with oxy-fuel burners positively affects furnace operation by:
It is necessary to insure the proper supply of oxygen to the combustion system. In terms of oxygen purity, it has been determined that 90% and higher will provide the maximum benefits of productivity improvement and fuel savings. In that regard, PCI’s full line of DOCS oxygen production units are ideally suited for these combustion applications.
The substitution of conventional air-fuel burners with oxy-fuel burners positively affects furnace operation by:
MODEL | DESCRIPTION | FLOW | PRESSURE | PURITY |
---|---|---|---|---|
DOCS 80 | 220V / 3-Phase / 60Hz or 208V / 3-Phase / 50Hz | 80 lpm | 20-100 psig | 93% +/- 3% |
DOCS 200 | 460V / 3-Phase / 60Hz or 380V / 3-Phase / 50Hz | 200 lpm | 20-100 psig | 93% +/- 3% |
DOCS 500 | 460V / 3-Phase / 60Hz or 380V / 3-Phase / 50Hz | 500 lpm | 20-100 psig | 93% +/- 3% |
DOCS 1500 | 460V / 3-Phase / 60Hz or 380V / 3-Phase / 50Hz | 1500 lpm | 3-12 psig | 93% +/- 3% |
DOCS 1500 Booster | 460V / 3-Phase / 60Hz or 380V / 3-Phase / 50Hz | 1500 lpm | 20-100 psig | 93% +/- 3% |
DOCS 5000 | 460V / 3-Phase / 60Hz or 380V / 3-Phase / 50Hz | 5000 lpm | 3-12 psig | 93% +/- 3% |
DOCS 5000 Booster | 460V / 3-Phase / 60Hz or 380V / 3-Phase / 50Hz | 5000 lpm | 20-100 psig | 93% +/- 3% |