Filter material loaded with low-temperature SCR catalyst prepared by suction filtration method, detection and application

• Main Authors: CHEN JINSEN, YU ZEHUI, LI JIAN, CAI JIANYU
• Format: Patent
• Language: Chinese; English
• Published: 15.11.2022
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PHYSICS; SEPARATION; TESTING; THEIR RELEVANT APPARATUS; TRANSPORTING

And preparing the filter material loaded with the low-temperature SCR catalyst by a suction filtration method, detecting and applying. The method comprises the following specific steps: 1, preparing a low-temperature vanadium-molybdenum-titanium-based SCR denitration catalyst; 2, grinding the prepared blocky catalyst to 100-120 meshes, and mixing and stirring the blocky catalyst with absolute ethyl alcohol to form a turbid liquid; and 3, uniformly loading the catalyst powder on the leeward surface of the filter material by a suction filtration method, air-drying the composite filter material at normal temperature, and then drying to obtain the filter material loaded with the low-temperature SCR catalyst. According to the present invention, the catalyst powder is only loaded on the leeward surface of the filter material through the suction filtration method, such that the influence of the dust in the flue gas on the catalyst activity is reduced, the loading capacity can be accurately controlled, the good low-t