The effects of using structurally less-stable raw materials for the support of a spray-dried oxygen carrier with high NiO content

► A spray-dried NiO oxygen carrier with excellent physical properties and reactivity was prepared. ► Mixture of structurally less-stable inorganic binders were used as raw materials for support. ► A calcination temperature to obtain sufficient mechanical strength was lowered to 1100 °C. ► The performance of NiO oxygen carrier was remarkably improved.