With less Al2O3 additive in CA-91 sorbent, only a little amount of inert support substance Ca12Al14O33 can be formed, so the sintering problem of CaO grains cannot be significantly eliminated like CA-82 sorbent
With lessAl2O3 additive in CA-91 sorbent, only a little amount of inert supportsubstance Ca12Al14O33 can be formed, so the sintering problemof CaO grains cannot be significantly eliminated like CA-82 sorbent