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Removal of Harmful Carbon Monoxide

The specifications, structures, power generation efficiency of fuel cells described on this page are based on the specifications of our household fuel cell system developed as the first commercial model and different from those of the latest products.


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The Reaction in the CO Degeneration Part

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Water (H2O) is added to the carbon monoxide (CO) generated during fuel reforming , causing the CO degeneration reaction .

In the CO degeneration reaction, oxygen contained in the added water reacts with the carbon monoxide created during reforming and becomes carbon dioxide and hydrogen .

The Reaction in the CO Purification Part

In the CO degeneration reaction, carbon monoxide (CO) is reduced to a level of approx. 0.5%, but to reduce the concentration even more, in the CO purification part, which is filled with a platinum-based catalyst , a small amount of oxygen is introduced, selectively causing oxidization of the carbon monoxide in the catalyst , which converts the remaining carbon monoxide into carbon dioxide.

Due to the above processing, the fuel supplied to the fuel processing part (methane) is then supplied to the power generation part as a hydrogen-rich gas consisting of hydrogen and carbon dioxide.

The Removal of Carbon Monoxide

In the CO degeneration part and the CO purification part, the carbon monoxide generated while reforming the methane becomes carbon dioxide, and the concentration of carbon monoxide is reduced to below approx. 10ppm.



Our fuel cells are intended for household use in Japan only.
Note that the data and values on this website are based on the energy conditions in Japan.

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