| 摘要 |
PROBLEM TO BE SOLVED: To provide an adsorbing remover and a removing method capable of easily, safely and efficiently removing, for deodorization, numerous sulfuric odor substances such as methyl mercaptan, hydrogen sulfide, methyl sulfide, and methyl disulfide which are contained in gases having offensive odors. SOLUTION: An adsorbing remover is obtained for hydrogen sulfide, mercaptans, sulfides, and disulfides which are contained in gases by carrying cupric chloride or cupric chloride and oxides of iron, chrome, nickel, etc., in activated carbon. In this case, such activated carbon is desirable as obtained by carbonizing a carbonaceous material, activating in an atmosphere with less than 15% by volume of steam content, and then cooling to 300 deg.C or below in the same atmosphere, or by treating a normally obtained activated carbon at a temperature of about 500 deg.C or above in a nitrogen gas and/or carbon dioxide containing essentially no oxygen and/or steam and then cooling to 300 deg.C or below in the same atmosphere. Consequently, the remover is provided with a high function as an oxidation catalyst at room temperature, showing a superior catalytic performance and a high durability, particularly in the case of using an activated carbon obtained under specific conditions with a low steam content as a support. |
