Regenerative denitration catalyst, method for producing same, and denitration device

• Main Authors: KAKO HIROSHI, SHISHIDO SATORU, NOJI KATSUMI, URABE YU, KURAI TAKUMA
• Format: Patent
• Language: Chinese; English
• Published: 12.10.2021
• 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

The purpose of the present invention is to provide: a regenerated denitration catalyst in which a used denitration catalyst is used to restore denitration performance compared to a denitration catalyst before use; and a method for producing the regenerated denitration catalyst. The regenerated denitration catalyst according to the present disclosure is mixed with: a denitration catalyst which contains a first titanium oxide as a main component and is used in a denitration reaction in which nitrogen oxides in a gas are decomposed into nitrogen and water using a reducing agent; and a second titanium oxide, the specific surface area per unit weight of which is larger than the specific surface area per unit weight of the first titanium oxide. The content of the second titanium oxide relative to the total weight of the first titanium oxide and the second titanium oxide is preferably from 10% to 90% by weight (inclusive). 目的在于提供利用使用过的脱硝催化剂使其与使用前的脱硝催化剂相比脱硝性能得到恢复的再生脱硝催化剂及其制造方法。本公开内容所涉及的再生脱硝催化剂中混合存在有：脱硝催化剂，所述脱硝催化剂包含第一