A catalytic ceramic membrane reaction device
A technology of catalytic ceramic membrane and reaction device, which is applied in combination devices, chemical instruments and methods, dispersed particle separation, etc., can solve the problems of single type of catalyst and can not well meet the reduction of gas toxicity, and achieve simple and feasible reaction device. , the treatment capacity is large, the effect of reducing pollution
Inactive Publication Date: 2015-12-16
DALIAN UNIV OF TECH
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Problems solved by technology
However, the type of supported catalyst is too single, which cannot well meet the requirements of gas toxicity reduction.
Method used
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[0030] As shown in the figure, the catalytic ceramic membrane reaction device of the present invention is mainly composed of an air inlet 1, an air supply device 2, an ignition device 3, an air outlet 4, a pulse tube 5, a control valve 6, a nozzle 7, a partition 8, a sealing Ring 9, catalytic ceramic membrane tube 10, ceramic membrane tube cavity 11, ash hopper 12 and ash discharge valve 13. The high-temperature dust-laden gas enters the system from the air inlet 1 in the form of swirling flow, and first mixes with the oxygen, air, water vapor or the mixture of the above-mentioned gases provided by the gas supply device 2 on the pipeline of the air inlet 1, and is fired at the ignition device. 3, a redox reaction takes place. Then, during the rotation process of the mixed gas, relying on the centripetal force, the particles with higher density are thrown to the wall of the container. Once the particles contact the wall, they lose the inertial force and rely on the momentum of ...
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Abstract
The invention relates to a catalytic ceramic membrane reaction device. The catalytic ceramic membrane reaction device mainly comprises a gas supply device, an ignition device and a catalytic ceramic membrane pipe, wherein high-temperature dusty gas enters the reaction device through a gas inlet in the tangential direction of the reaction device in a rotational flow manner, and is mixed with oxygen gas, air and vapor or the mixture thereof, supplied by the gas supply device; the mixed gas is ignited by electric sparks, is subjected to oxidization or reduction reaction, and then passes through the catalytic ceramic membrane pipe at high temperature; dusts in gas are filtered by the surface of the catalytic ceramic membrane pipe; gas is subjected to catalytic reaction while passing through the catalytic ceramic membrane pipe and is finally exhausted through a gas outlet. The catalytic ceramic membrane pipe is a pore gradient ceramic membrane pipe with sealed bottom and loaded with different catalysts in different bore diameter ranges, and the pore is sequentially increased from outside to inside in size and thickness. The reaction device is easy to implement, has high handling capacity, and can well achieve the triple effects of dedusting, catalyzing and oxidation-reduction.
Description
technical field [0001] The invention belongs to the technical field of environmental protection equipment and relates to a catalytic ceramic membrane reaction device. Background technique [0002] The waste gas emitted by metallurgy, machinery, chemical industry, electric power and other industries not only has high temperature, but also contains a lot of dust and harmful gas, which is one of the main factors causing environmental pollution. Due to technical limitations, traditional dust removal methods cannot handle high-temperature dusty gases well, so they cannot meet high standards of environmental protection emissions and waste heat utilization requirements. [0003] In recent years, due to the advantages of high temperature resistance, anti-pollution, good membrane regeneration performance, low energy consumption, and simple operation and maintenance, ceramic membranes have been widely used in dust removal and separation. Patent 201320057103.2 discloses a high-tempera...
Claims
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IPC IPC(8): B01D50/00B01D53/75B01D53/88
Inventor 高宁博刘宝玲李爱民
Owner DALIAN UNIV OF TECH