Abstract: The phase composition database of S Zorb sorbents has been established using Rietveld quantitative phase analysis method. The database covers almost all possibilities of S Zorb sorbent occurred in china. The rapid phase quantitative analysis models are established for fresh, spent, and regenerated sorbent respectively, which have good accuracy and repeatability. The alarm models were building for the Zn3O(SO4)2 phase of the spent and regenerated sorbents, and for the NiO phase of spent sorbents. The rapid phase quantitative analysis technology has successfully applied in an S Zorb industrial unit, which is helpful to optimize the operating parameters and to promote the long-periodic stable running of unit.