A SORBENT COMPOSITION THE PREPARATION METHOD THEREOF AND THE PROCESS FOR REMOVING SULFUR OXIDES AND NITROGEN OXIDES IN A FLUE GAS BY THE SORBENT COMPOSITION

摘要

The present invention relates to sorbent compositions, their preparation, and method for removing oxides of sulfur and nitrogen in the flue gas by the adsorbent such compositions. Sorbent composition of the present invention comprises a refractory inorganic oxide matrix, the metal component I and component II metal, the refractory inorganic oxide matrix has a large specific surface area than 130 / g, wherein component I is a Group IA metal in the periodic table of elements and it is selected from one or more of the Group IIA element, said metal II is selected from the IIB group, VIB group, VIIB group and transition one or more of the metal of group VIII in the periodic table, the metal component II is the X-ray photoelectron spectroscopy when analyzed as they exist in two or more different valence states. Compared to the prior art, the sorbent according to the invention has better properties according to remove oxides of sulfur and nitrogen, have a higher reproduction stability. ; adsorbent compositions, nitrogen oxides, sulfur oxides, the flue gas, the refractory inorganic oxide matrix, the reproduction stability