Studies involving high temperature desulfurization/regeneration reactions of metal oxides for fuel cell developments. Project status report, December 1982

The test evaluation of supported system CuO/Zeolite was carried out in the fluidized bed reactor with 450 mean average particle diameter. In all the tests, the sulfur capacity was observed below 1 mole % conversion for 10 ppM H/sub 2/S concentration in the effluent gas. There was an improvement in sulfur capacity of air-steam regenerated batches (Run 171 and 172) compressed to air regenerated batches (Run 169 and 170). We believe CuO-ZnO system has greater potentials than supported CuO only. We plan to carry out a desulfurization test of mixed oxide CuO/ZnO sorbent with ZrO/sub 2/ as diluent.