High temperature flue gas purification with pore gradient design

High temperature flue gas purification with pore gradient design, preparation and properties of high temperature ceramic fiber membrane filtration technology is an important part of industrial emissions and environmental engineering, and high temperature ceramic ultralight weight material is the core and key of high temperature liquid separation and purification. Therefore, this study based on the preparation of low filter resistance, high separation efficiency, and has good high temperature resistance, corrosion resistance, thermal shock features such as pore gradient ceramic fiber membrane, it will be on the high temperature gas such as high temperature flue gas purification treatment and environmental protection is of great significance. On the basis of the reading of resin coated frac sand amount of literature, and through the hole gradient ceramic fiber membrane using the environment requirements and preparation conditions of comprehensive analysis, design and determine the support material, ceramic fiber type and high temperature binder, the key points of the choice of pore-forming agent, and according to the high temperature dust gas particle test results and the size of the situation, determine the fiber membrane pore gradient ceramics ceramic fiber separation layer, transition layer and the pore diameter of porous ceramic membrane support matching elements. System to study the fiber membrane pore gradient ceramics with the method of preparation of porous ceramic membrane support, for the first time the heat shock casting molding process, and by adjusting the process parameters of preparation of the high temperature resistance, good thermal stability, high porosity and permeability of small resistance, high strength, large aperture cordierite porous ceramic membrane support, and study the micropore of porous ceramic membrane support performance especially aperture effect the performance of the film and film layer.