Gas analysis device, mercury removal system, gas analysis method, and removal method for mercury in flue gas

摘要

A gas analysis device according to the present invention includes a flue-gas extraction pipe for extracting flue gas from a flue gas duct to which flue gas including both of NH4Cl and SO3 is fed, a collector that is provided in the flue-gas extraction pipe, for removing soot dust contained in the extracted flue gas, a roll filter that is provided in the flue-gas extraction pipe, for depositing both of NH4Cl and SO3 contained in the flue gas, and a measurement device for measuring both of NH4Cl and SO3 contained in the flue gas by irradiating a sample including both of NH4Cl and SO3 deposited by the roll filter with X-rays and detecting fluorescent X-rays generated from the sample.