Composite material of micro-fiber encapsulated active carbon or active carbon catalyst and preparation method thereof

Abstract

The invention discloses composite material of microfibrillar coating activated carbon or activated carbon catalysator and preparation method. The material includes micrometer ceramics or metal micro-fiber and micrometer activated carbon or activated carbon catalysator particles, the activated carbon or activated carbon catalysator particles are coated in the three-dimensional network structure uniformly. It mixes the adhesive agent, micro-fiber, activated carbon or activated carbon catalysator particle with the mass ratio of 1:1-3.5:7-10 and right amount of water to forming uniform slurry after high-speed agitation; then prepares precursor using wet paper-making art; the precursor is adglutinated and formed under 750-1400DEG C after dried fully. The material preparation art is simple and low in cost, the void ratio is high and can be adjusted within a wide range, mechanical strength is high, flexibility is good and molding is easy; it can replaces traditional activated carbon or activated carbon catalysator fixed-bed layer, enhance mass and heat transfer, reduce pressure drop and improve contact efficiency, its application prospects are bright.

Description

technical field [0001] The invention relates to the technical field of porous composite material in the field of adsorption and catalysis and its manufacture, in particular to a composite material of microfiber-coated activated carbon or activated carbon catalyst and a preparation method thereof. Background technique [0002] Activated carbon has become an excellent adsorbent and catalyst carrier due to its developed pore structure, large specific surface area, sufficient mechanical strength, acid resistance, alkali resistance, heat resistance, insoluble in water and organic solvents, and easy regeneration. It is widely used in separation, refining, catalyst, reagent recovery, protective equipment, environmental governance, etc. However, in actual use, the particle size of activated carbon and activated carbon catalysts is usually larger than 1mm, and the particle size is large, which seriously affects the diffusion resistance inside and outside the particles, resulting in h...

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Problems solved by technology

Domestic East China Science and Technology Daluyong et al. (Chinese application number 200510028873.4, publication number CN 1762909A) coated SiO2, Al2O3 with glass microfiber sub>particles have prepared composite materials, but there are no specific application reports

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