72.再生容易なZnO系高温脱硫剤の開発(石炭利用における科学と工学の融合)

抄録

Low-temperature regenerable zinc oxide as high-temperature desulfurization sorbents are suitable for IGCC and MCFC. In this study, ZnO/TiO_2 sorbents were prepared by different methods and were characterized for their reactivities and regenerabilties. Their regeneration characteristics were investigated using TPD technique. It was concluded that the regenerability of the sorbents greatly depended on the preparation method. Also, the sorbent prepared from Zn(NO_3)_2 and Ti(SO_4)_2 using ammonia as precipitant was regenerated more easily among the samples tested in this study.