Hollow fiber ceramic membrane, and application method thereof

Abstract

The invention discloses a novel hollow fiber ceramic membrane. According to the hollow fiber ceramic membrane, membrane tubes are arranged to form a multi-layer asymmetric composite structure. The hollow fiber ceramic membrane comprises a functional layer, an isolating layer, and a supporting layer; the functional layer wall is thin, pores are small, and a wedge structure is formed; pore distribution of the layers is uniform, and distribution range is narrower; because of manufacturing technology breakthrough, hollow fiber ceramic membrane forming quality is increased, and cost is reduced greatly. Optimized membrane tube clustering technology is capable of solving fluid nonuniform distribution problem, and relatively filing density is achieved. The invention also discloses a membrane filter comprising a membrane element formed through binding fixing of the hollow fiber ceramic membranes, and a housing; the membrane element is arranged in the housing. The invention also discloses applications of the hollow fiber ceramic membrane in the fields of high flash point solvent recycling, waste oil regeneration, biodiesel purification, penetration evaporation dehydration, penetration evaporation separation (recycling) of light hydrocarbons, recycling of waste heat and water in flue gas, hydrogen gas separation and purification, and catalytic membrane reactors.

Description

technical field [0001] The invention belongs to the technical field of membrane separation, and in particular relates to a novel hollow fiber ceramic membrane and an application method. Background technique [0002] Compared with organic polymer membranes, ceramic membranes have unique advantages such as high temperature resistance, chemical corrosion resistance, high mechanical strength, uniform pore size distribution, controllable microstructure, and long service life. , chemical industry, metallurgical industry, food industry, environmental engineering, new energy and other fields have a wide range of application prospects, and thus are increasingly valued. The application of ceramic membrane technology plays an important role in energy saving, emission reduction, green production and sustainable social and economic development. [0003] Although ceramic membranes and ceramic membrane separation technology have developed rapidly in the past two decades, and their applica...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to overcome the problems of high cost and low packing density of the existing ceramic membrane materials under the premise of ensuring the excellent performance of the ceramic membrane, and provide a new type of hollow

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