| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a mercury adsorbent capable of efficiently adsorbing and removing elemental mercury, ionic mercury, organic mercury, etc., and mercury from a combustion flue gas of a thermal power plant, a natural gas, an off gas from a variety of processing plants, etc., which gas includes a coexistent substance hindering adsorption of mercury, a mercury adsorbent manufacturing method, and a mercury adsorption/removal method. <P>SOLUTION: The mercury adsorbent carries 27-70% of potassium iodide to the total adsorbent weight, and has a pore volume of 0.6 mL/g in terms of pores having sizes of 1μm or larger. The adsorbent is packed, e.g., in an adsorption column 10, and a hydrocarbon fluid is circulated to the column (the mercury removal process). If saturation water is contained in the hydrocarbon fluid, dehydration is executed by installing a dehydration unit 9 or the like upstream of the adsorption column 10 (the dehydration process). <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
