42.カキ殻を利用したフェライト系H_2S吸収剤の開発

抄録

In order to develop an efficient and low cost absorbent for H_2S removal at a high temperature, Yallown coal-supported calcium ferrite was prepared from oyster shell. H_2S breakthrough curve was observed with a fixed-bed reactor equipped with quadrupole mass spectrometer (Q-mass). Surface area of the prepared absorbent showed 37m^2/g and carbon remained showed 10%. Coal-supported calcium ferrite exhibited the high absorption capacity (about 100%) at 500℃ and could efficiently remove 4000ppm of H_2S to less than a few ppm.