Conclusions

The major results on the acid loss studied experimentally by using the single cell with the active electrode area of 100 cm2 are summarized as follows:

(1) The concentration of phosphoric acid in the cathode exhaust gas is nearly constant in the region of50-400 mA/cm2 but that in the anode varies with current density.

(2) The concentration of phosphoric acid in the exhaust gases increases exponentially with increase of operating temperature, but they are smaller than" the equilibrium concentration estimated from Brown's data.

(3) The concentration of phosphoric acid in the anode exhaust gas is affected by the mean linear velocity, and it reaches nearly to the equilibrium concentration with lowering the mean linear velocity.

0 0

Post a comment