고효율 탈질 활성 촉매의 제조방법

• Main Authors: MENG FANMIN, LIU XIAOLING, YUAN HU, XIE SONGWEI
• Format: Patent
• Language: Korean
• Published: 06.07.2022
• 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

본 발명은 탈질 반응기에 촉매원료를 투입하고, NH3 및 불활성 가스를 유입시킨 후 승온하여, 보온 후 자연 냉각하면 촉매가 얻어지는, 고효율 탈질 활성 촉매의 제조방법을 공개했다. 본 발명의 유익한 효과는 다음과 같다: 본 발명의 방법에 의해 제조된 활성 촉매는 촉매 저온 구간의 탈질 활성을 크게 향상시킬 수 있고, SO2 및 H2O가 없는 조건에서의 촉매의 탈질 효율을 향상시킬 수 있을 뿐만 아니라, SO2 및 H2O를 동시에 포함하는 조건에서의 촉매의 탈질 효율도 향상시킬 수 있고, 기존의 촉매 제조 공정을 변경하지 않는 전제하에, 촉매의 수명이 연장되고, 경제적 이점이 크고, 분말 촉매의 탈질 효율은 25% 증가할 수 있고, 허니컴 촉매 또는 파형 판형 촉매의 탈질 효율은 20% 증가할 수 있다. A method for preparing an active catalyst for high-efficiency denitration is disclosed. The method comprises the following steps: a catalyst raw material is charged into a denitration reactor, NH3 and an inert gas are introduced and then heating is performed, and the temperature is held and then natural cooling is performed, thereby obtaining the catalyst. The beneficial effects of the invention are as follows. The active catalyst prepared by the method of the invention can greatly improve the denitration activity of the catalyst in low temperature range, and can not only improve the denitration efficiency of the catalyst under the condition without SO2 and H2O, but also can improve the denitration efficiency of the catalyst under the condition with both SO2 and H2O. The service life of the catalyst is prolonged under the premise of not changing the existing catalyst preparation process, and the economic benefit is significant. The denitration efficiency of a powder catalyst can be increased by 25%, and the denitration efficiency of a honeycombed catalyst or a corrugated catalyst can be increased by 20%.