| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve effectively a removal activity of hydrogen sulfide by execution of baking treatment or nitric acid treatment of an active carbon fiber when a hydrogen sulfide desulfurizer comprising an active carbon fiber is activated. SOLUTION: An active carbon fiber is called also a carbon fiber, manufactured by carbonizing by heat treating in an innert gas of an organic fiber such as rayon, polyacrylonitrile, etc., or fiber prepared by spinning coal tar pitch and refined petroleum pitch, and PAN based active carbon fiber or pitch based active carbon fiber is preferably used. By executing burning treatment or nitric acid treatment of such an active carbon fiber, an activated active carbon fibrous hydrogen sulfide desulfurizer is obtained. Further, the baking treatment is executed within a rainge of about 550 to 850 deg.C in temperature. When this active carbon fibrous desulfurizer is used, hydrogen sulfide to be generated in living environment, or in cases of geothermal power generation, oil refining, natural gas refining, sewage disposal or the like, can be effectively removed.</p> |
