Device for photocatalytically degrading exhaust gas by electrodeless excimer lamp
A catalytic degradation and excimer technology, which is applied in the field of devices for catalytic degradation of waste gas by non-polar excimer light, can solve the problems of small selection range of electrode materials and luminescent substances, long ignition time and stabilization time, and low utilization rate of light radiation. The effect of small footprint, simple manufacture and wide application range
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Embodiment 1
[0057] (Example 1, a device for catalytically degrading waste gas with non-polar excimer lights)
[0058] See figure 1 , The device of the present embodiment of the non-polar excimer light catalytic degradation of exhaust gas includes a gas collection hood 1, a connecting sleeve 2, a gas mixer 3, an inlet distributor 4, a reactor 5, an outlet distributor 6 and an induced draft fan. The air collecting hood 1 includes a lower air collecting hood 11 and an upper air collecting hood 12 . The lower gas collecting hood 11, the gas mixer 3, the reactor 5, the gas outlet distributor 6 and the upper gas collecting hood 12 are arranged sequentially from bottom to top.
[0059] The air inlet of the lower gas collecting hood 11 is connected with the exhaust gas generator gas outlet or the gas storage tank of the gas to be degraded, and the gas outlet of the lower gas collecting hood 11 is connected with the air inlet of the connecting sleeve 2 through a flange. The gas mixer 3 is arr...
Embodiment 2
[0094] (Example 2, a method for catalytically degrading exhaust gas by non-polar excimer lights)
[0095] The method for catalytically degrading waste gas by light-emitting excimer light in this embodiment adopts the device described in Embodiment 1, and the through-hole plug used in the air inlet distributor 4 is a blind hole plug 48 . The inner electrode 71 is made of metal sheet, and the outer electrode 72 is made of metal mesh.
[0096] The process of photocatalytic degradation of waste gas by non-polar excimer lights is as follows: the waste gas from the waste gas generator or the waste gas storage tank is initially mixed by the gas mixer 3, and then further mixed evenly by the air inlet distributor 4, and then enters the reactor under the action of the induced draft fan 5 for purification. A sampling port is set at the outlet of the reactor 5 at a distance of 1m from the reactor, and the concentration of the reacted gas is detected by an online gas analyzer, and the gas...
Embodiment 3
[0103] (Example 3, a method for catalytically degrading exhaust gas by non-polar excimer lights)
[0104] The method for catalytically degrading waste gas by light-emitting excimer light in this embodiment adopts the device described in Embodiment 1, and the through-hole plug used in the air inlet distributor 4 is a porous plug 47 . The inner electrode 71 is made of metal mesh, and the outer electrode 72 is made of metal sheet.
[0105] See Figure 7 , in this example, the degradation flow dynamics simulates dimethylamine waste gas, and the initial concentration is 3745 mg / m 3 , the method for degrading waste gas specifically includes the following steps:
[0106] ① Vacuum the gas filling zone II, and then fill it with Kr : Cl 2 =350:1, total pressure 205torr.
[0107]② Turn on the high-voltage power supply 73, apply an external voltage of 6kV, and a power of 50W. The gas-filled mixture in zone II is excited to generate excimer ultraviolet light to radiate to the reaction ...
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