Dust collection denitration integral inorganic membrane tube and preparation method thereof
An inorganic membrane, denitration technology, applied in chemical instruments and methods, catalyst activation/preparation, separation methods, etc., to ensure uniform dispersion and avoid particle aggregation.
Active Publication Date: 2019-10-22
GUIZHOU MINZU UNIV
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Problems solved by technology
[0004] To this end, the present invention provides an integrated inorganic membrane tube for dust removal and denitrification and its preparation method to solve or at least alleviate the above problems
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[0030] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0031] figure 1 A flow chart of a method 100 for preparing an integrated inorganic membrane tube for dust removal and denitrification according to an embodiment of the present invention is shown. Such as figure 1 As shown, the method starts in step S110.
[0032] In step S110, the copper salt and the iron salt are dissolved in ethanol at a molar ratio of 1:1-3:1 to obtain an impregnation solution. Among them, the copper salt can...
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Abstract
The invention discloses a preparation method of a dust collection denitration integral inorganic membrane tube. The preparation method comprises the following steps: dissolving a copper salt and an iron salt into ethanol according to a mole feeding ratio of (1:1)-(3:1) so as to obtain a soaking liquid; soaking aluminum oxide powder into the soaking liquid, performing shearing ultrasonic stirring for a certain time, and performing drying, calcining, grinding and screening so as to obtain catalyst granules with supported copper-iron active components; performing spinning coating on the catalystgranules to the surface of an inorganic membrane tubular support by using spinning coating equipment, taking out the tubular support after spinning coating, and performing high-temperature sintering,thereby obtaining the dust collection denitration integral inorganic membrane tube. The invention further discloses a specific structure of the spinning coating equipment used in the preparation method, and the dust collection denitration integral inorganic membrane tube prepared by using the preparation method.
Description
technical field [0001] The invention relates to the technical field of flue gas dust removal and denitrification, in particular to an inorganic membrane tube integrated with dust removal and denitrification and a preparation method thereof. Background technique [0002] SCR (Selective Catalytic Reduction, Selective Catalytic Reduction) technology is the most mature and widely used denitrification technology today. Compared with other denitrification technologies, its denitrification efficiency is high, and it can achieve a denitrification efficiency of more than 90%. Pollution, almost no by-products are generated, that is, the selectivity of the product nitrogen is high, and there is no problem of secondary pollution. Inorganic ceramic membranes have the characteristics of high temperature resistance, chemical corrosion resistance, high mechanical strength, narrow pore size distribution, controllable microstructure, and long service life. Therefore, inorganic membrane separa...
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IPC IPC(8): B01J23/745B01J37/02B01D53/88B01D53/86B01D46/54B01D53/56
CPCB01D46/543B01D53/8628B01D53/88B01D2258/0283B01J23/745B01J37/0221
Inventor 陶文亮王军聂登攀
Owner GUIZHOU MINZU UNIV