Regeneration method of catalytic filter screen

• Main Authors: WANG HONGYAN, CUI CAN, WEN JING, LIM JI-BUM, HUA RUI, ZENG XIANGJI
• Format: Patent
• Language: Chinese; English
• Published: 06.12.2022
• 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

The invention discloses a catalytic filter screen regeneration method which comprises the following steps: attaching a Joule heat effect material to a catalytic filter screen to be regenerated, applying a high-voltage pulse with a pulse width of 10-100ms to the Joule heat effect material in an inert environment, and immediately cooling after the Joule heat effect material reaches an instantaneous high temperature, and circulating the steps of instantaneous high temperature and cooling for at least two times. Under the condition that the structure of the catalytic filter screen is not damaged, by-products and pollutants covering the catalytic material on the catalytic filter screen and active sites on the surface of the carrier are effectively removed, and the purpose of regenerating the catalytic material is achieved; meanwhile, the method has the advantages of simpler and quicker operation and lower regeneration cost. 本发明公开了一种催化滤网的再生方法，包括将焦耳热效应材料贴合在待再生的催化滤网上，在惰性环境下对焦耳热效应材料施加10-100ms脉宽的高压脉冲使焦耳热效应材料达到瞬时高温后立即冷却