This paper highlights currently excellent metal oxides used for hot gas desulfurization (HGD). Due to the different desulfurization properties, iron oxide and calcium oxide based sorbents are normally used for primary desulfurization while zinc oxide, copper oxide and manganese oxide based sorbents are often devoted to fine desulfurization. However, pure sorbents inevitably have some limitations and so, mixed oxides combining the properties of various metals like zinc ferrite and zinc titanate which get extensive concern are also introduced in this paper.
Composition modification of zinc titanate sorbents for hot gas desulfurization. Quarterly report, 1 December 1994--28 February 1995