| abstract |
Provided are: an agent for removing a halogen gas such as chlorine in a waste gas by means of reduction; a method for producing this agent; a method for removing a halogen gas with use of this agent; and a system for removing a halogen gas. An agent for removing a halogen gas, which contains at least pseudo-boehmite that serves as a host material and a sulfur-containing reducing agent that serves as a guest material. It is preferable that 1-8% by weight of the reducing agent in terms of elemental sulfur is contained based on the total amount of the pseudo-boehmite and the sulfur-containing reducing agent. It is also preferable that at least one inorganic compound selected from among oxides, carbonate salts and hydrocarbon salts of alkaline earth metal elements, transition metal elements and zinc group elements is additionally contained as a third component. |