SULFUR-TYPE GAS REMOVING FILTER AND METHOD FOR REMOVING SULFUR-TYPE GAS USING THE SAME

摘要

Provided is a filter for removing a sulfur-containing-gas (1), which removes the sulfur-containing-gas by being brought into contact with the sulfur-containing-gas in a gas flow path, the filter comprising a former filter (11) disposed on an upstream side of the gas flow path, and a latter filter (12) disposed on a downstream side of the gas flow path, wherein
the former filter (11) comprises a first material for removing a sulfur-containing-gas, the first material comprising a porous support, and iodine which is supported on the porous support, and is produced by catalytic pyrolysis of ammonium iodide at a thermal decomposition ratio of 80% or more by use of the porous support as a catalyst, and
the latter filter (12) comprises a second material for removing a sulfur-containing-gas, the second material comprising an activated carbon fiber, and an alkali component which is supported on the activated carbon fiber.