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Catalyst sorbents based on alumina-supported CuO, CeO 2 , and CuO-CeO 2 were applied to a dry scrubber to clean up the SO 2 /HCl/NO simultaneously from pilot-scale fluidized-bed incineration flue gas. In the presence of organic compounds, CO and the submicron particles SO 2 and HCl removed by the fresh catalyst sorbents and NO reduced to N 2 by NH 3 under the catalysis of fresh and spent desulfurization/dechloridization (DeSO 2 /DeHCl) catalyst sorbents (copper compounds, Cu, CuO, and CuSO 4 ) were evaluated in this paper. The fresh and spent catalyst sorbents were characterized by the BrunnerEmmett-Teller method (BET), X-ray powder diffraction (XRPD), scanning electron microscopy (SEM), inductively coupled plasma-mass spectrometry (ICP-MS), and the elemental analyzer (EA).The study showed that the performances of CuO, CeO 2 , and CuO-CeO 2 /γ-Al 2 O 3 were better than that of Ca(OH) 2 . The removal efficiency of SO 2 and HCl was 80-95% in the dry scrubber system. Under NH 3 /NO = 1, NO could not be reduced to N 2 because it was difficult to control the ratio of air/fuel in the flue gas. For estimating the feasibility of regenerating the spent catalyst sorbents, BET and EA analyses were used. They indicated that the pore structures were nearly maintained and a small amount of carbon accumulated on their surface.