SCR denitration catalyst arsenic poisoning simulation system and catalyst arsenic deposition rate evaluation method

The invention discloses an SCR denitration catalyst arsenic poisoning simulation system and a catalyst arsenic deposition rate evaluation method. The simulation system comprises an arsenic generator, a material conveying system, a mixer and a catalyst bin, the arsenic generator is filled with an arsenic generating source; the arsenic generator is heated by a heating device; the arsenic generator is connected with a carrier gas input pipeline; an outlet of the arsenic generator is connected with a conveying pipeline; an outlet of the material conveying system is connected with the conveying pipeline; the material conveying system is used for conveying powder; an outlet of the conveying pipeline is connected with an inlet of the mixer; mixing the powder with carrier gas carrying arsenic in a mixer; an outlet of the mixer is connected with the catalyst bin; and the catalyst bin is filled with a catalyst. By simulating the arsenic deposition process on the SCR denitration catalyst, the deposition condition of ars