DESULFURIZATION ADSORBENT FOR FUEL CELL, DESULFURIZING METHOD USING IT, REGENERATING METHOD FOR DE

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PROBLEM TO BE SOLVED : To provide a desulfurization adsorbent with superior desulfurization performance and regeneration characteristics, a desulfurizing method using the desulfurization adsorbent to remove sulfur compounds in fuel, a regenerating method for regenerating the desulfurization adsorbent having adsorbed the sulfur compounds, a desulfurizer including the desulfurization adsorbent, and a fuel cell system including the desulfurization adsorbent. SOLUTION : The desulfurization adsorbent has a structure of a chemical formula 1, and the desulfurizing method uses the desulfurization adsorbent. The chemical formula 1 is (M1)a-(Si)x-(Ti)y-(M2)z-O, wherein, M1 is one or more selected from an alkali metal, an alkali earth metal, hydrogen, ammonium, a rare earth metal, and a transition metal, 4≤x/y≤500, 0≤z/y≤3, 0