GAS ANALYSIS DEVICE, MERCURY REMOVAL SYSTEM, GAS ANALYSIS METHOD, AND REMOVAL METHOD FOR MERCURY IN FLUE GAS

摘要

This gas analysis device (10) comprises: an exhaust gas drain tube (13) for extracting an exhaust gas (11A) from a smoke path (12) through which the exhaust gas (11) containing both NH4Cl and SO3 is supplied; a collector (14) which is arranged in the exhaust gas drain tube (13) and can remove smoke dust contained in the extracted exhaust gas (11A); a roll filter (15) which is arranged in the exhaust gas drain tube (13) and can cause both NH4Cl and SO3 contained in the exhaust gas (11A) to precipitate; and a measurement unit (19) for irradiating a sample containing both NH4Cl and SO3 that has been precipitated by means of the roll filter with X-ray and detecting fluorescent X ray generated from the sample, thereby measuring both NH4Cl and SO3 contained in the exhaust gas (11A).