Multifunctional composite gas purification film material
A technology of composite gas and purification membrane, applied in the field of gas purification, can solve the problems of long gas purification process, poisoning of denitration catalysts, and high processing cost, and achieve the advantages of shortening the exhaust gas purification process, improving the efficiency of heat recovery and utilization, and reducing the size of the equipment. Effect
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Embodiment 1
[0016] A multifunctional composite gas purification membrane material, including a membrane layer and a substrate. The membrane layer is a polytetrafluoroethylene biaxially stretched membrane. The substrate is made of a mixture of carrier fibers and low-temperature denitrification catalytic fibers. The carrier fiber accounts for 40wt%. , the carrier fiber is a mixed material of organic fiber and inorganic fiber, wherein the content of inorganic fiber accounts for 10wt%, the low-temperature denitrification catalytic fiber has a bead structure, the bead diameter is 0.1 μm, and the catalytic active component is TiO 2 The content is 20wt%, the Mn content is 15wt%, the Cr content is 3wt%, the V content is 20wt%, the Sn content is 1wt%, the Ce content is 0.5t%, and the Cu content is 0.5wt%.
[0017] The average pore diameter of the film layer is 0.5 μm, the thickness is 30 μm, and the porosity is 80-95%. The average pore diameter of the substrate is 30 μm, the thickness is 3mm, and t...
Embodiment 2
[0025] A multifunctional composite gas purification membrane material, including a membrane layer and a substrate. The membrane layer is a polytetrafluoroethylene biaxially stretched membrane. The substrate is made of a mixture of carrier fibers and low-temperature denitrification catalytic fibers. The carrier fiber accounts for 50 wt%. , the carrier fiber is a mixed material of organic fiber and inorganic fiber, wherein the content of inorganic fiber accounts for 20wt%, the low-temperature denitrification catalytic fiber has a bead structure, the bead diameter is 2 μm, and the catalytic active component is TiO 2 The content is 40wt%, the Mn content is 10wt%, the Cr content is 5wt%, the V content is 15wt%, the Sn content is 5wt%, the Ce content is 1.5wt%, and the Cu content is 1wt%.
[0026] The average pore diameter of the film layer is 10 μm, the thickness is 15 μm, and the porosity is 90%. The average pore diameter of the substrate is 15 μm, the thickness is 5mm, and the por...
Embodiment 3
[0034] A multi-functional composite gas purification membrane material, including a membrane layer and a substrate, the membrane layer is a polytetrafluoroethylene biaxially stretched membrane, the substrate is made of a mixture of carrier fibers and low-temperature denitration catalytic fibers, and the carrier fibers account for 70wt% , the carrier fiber is a mixed material of organic fiber and inorganic fiber, in which the content of inorganic fiber accounts for 30wt%, the low-temperature denitrification catalytic fiber has a bead structure, the bead diameter is 3 μm, and the catalytic active component is TiO 2 The content of Mn is 50wt%, the content of Mn is 5wt%, the content of Cr is 10wt%, the content of V is 10wt%, the content of Sn is 10wt%, the content of Ce is 2wt%, and the content of Cu is 2wt%.
[0035] The average pore size of the film layer is 15 μm, the thickness is 30 μm, and the porosity is 95%. The average pore size of the substrate is 30 μm, the thickness is 1...
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