Preparation of porous sponge-like CrMnO[X]/aluminum silicate fiber cotton low temperature flue gas denitrification catalyst

• Main Authors: LI XIAZHANG, TANG YIRAN, LUO SHIPING, XIE AIJUAN, YAO CHAO, ZHOU XINGMENG, HUANG XIAOYAN, ZUO SHIXIANG
• Format: Patent
• Language: Chinese; English
• Published: 20.04.2018
• 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 belongs to the field of flue gas denitrification, and in particular, relates to a porous sponge-like CrMnO[X]/aluminum silicate fiber cotton low temperature flue gas denitrification catalyst in situ grown by a hydrothermal method. Aiming at the disadvantages that a conventional denitrification catalyst carrier is not easy to form and is easy to block in actual use, an active component is not easy to fix on the catalyst carrier, a catalyst is not easily cut in actual use in a flue gas pipeline, and a simple MnO[X] catalyst is easily poisoned by SO2, the invention discloses the porous sponge-like CrMnO[X]/aluminum silicate fiber cotton flue gas denitrification catalyst in situ grown by the hydrothermal method and a preparation method thereof. Porous fiber-like aluminum silicatefiber cotton after acidification is used as a carrier, and CrMnO[X] in situ loaded by a hydrothermal method is used as an active component. The prepared catalyst has simple technology, has the advantages of wide scope of low