Regeneration method for denitration catalyst and regeneration system for denitration catalyst

• Main Authors: MASUDA TOMOTSUGU, YONEMURA MASANAO, NOCHI KATSUMI, IWAMOTO KAZUHIRO, YASUTAKE TOSHINOBU
• Format: Patent
• Language: Chinese; English
• Published: 07.02.2020
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

Provided are a regeneration method for a denitration catalyst and a regeneration system for a denitration catalyst that can eliminate coarse particles blocking the inside of the denitration catalyst along with toxic substances adhering to the denitration catalyst. The regeneration method for a denitration catalyst at least includes a chemical solution cleaning step for chemical solution cleaning by immersing the denitration catalyst in a dry state in a chemical solution that includes a fluorine compound, an inorganic acid, and a surfactant. 本发明提供一种能够将堵塞在脱硝催化剂的内部的粗大粒子和附着于脱硝催化剂的中毒物质一起去除的脱硝催化剂的再生方法及脱硝催化剂的再生系统。脱硝催化剂的再生方法至少包括：药液清洗步骤，将脱硝催化剂以干燥状态浸渍于含有氟化合物、无机酸及表面活性剂的药液中而进行药液清洗。