A gas monitoring and purification method
A gas monitoring and gas technology, applied in chemical instruments and methods, separation methods, combustion methods, etc., can solve problems such as non-standard monitoring by monitors, and achieve the effect of improving adsorption and purification efficiency
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Embodiment 1
[0037] S1, gas screening
[0038] Place the gas detection equipment in the environment to be tested, drive the fan 7 to rotate at 300r / min through the driver 6, quickly suck the gas to be tested into the air intake chamber 10, and filter the particles and dust sucked with the gas through the filter screen 8, The heating wire 9 heats the humid air sucked in with the gas for drying treatment, and the dried dry gas is brought into the detection tube 12 through the fan 7, and the detection gas in the detection tube 12 detects and discriminates the gas.
[0039] S2. Treatment of gas after screening
[0040] When the gas is monitored by the monitor 13 as a harmful gas, the activated carbon in the gas treatment tank 15 is used for adsorption and processing; The air pump 17 accelerates it to be quickly discharged out of the equipment. When the gas is detected as a flammable gas, it will be processed through the gas treatment tank 15 and cannot be processed. It will be fully burned in...
Embodiment 2
[0042] S1, gas screening
[0043] Place the gas detection equipment in the environment to be tested, and drive the fan 7 to rotate at 500r / min through the driver 6 to quickly inhale the gas to be tested into the air intake chamber 10, and filter the particles and dust inhaled with the gas through the filter screen 8, The heating wire 9 heats the humid air sucked in with the gas for drying treatment, and the dried dry gas is brought into the detection tube 12 through the fan 7, and the detection gas in the detection tube 12 detects and discriminates the gas.
[0044] S2. Treatment of gas after screening
[0045] When the gas is monitored by the monitor 13 as a harmful gas, the activated carbon in the gas treatment tank 15 is used for adsorption and processing; The air pump 17 accelerates it to be quickly discharged out of the equipment. When the gas is detected as a flammable gas, it will be processed through the gas treatment tank 15 and cannot be processed. It will be fully bu...
Embodiment 3
[0048] The activated carbon used in the gas monitoring purification method in embodiment one and embodiment two is selected as modified activated carbon, and the preparation process is as follows:
[0049] Step 1: After the activated carbon is ultrasonically washed in absolute ethanol, then washed with deionized water, put into a muffle furnace and dried to obtain pretreated activated carbon;
[0050] Step 2 Take 15g of pretreated activated carbon and put it into 200mL 9mol L -1 h 2 SO 4 In the modified solution, soak in a water bath, vibrate on a shaking table, filter, wash with deionized water to neutrality, seal it after drying, and obtain spare activated carbon;
[0051] Step 3 Take 200mL 10wt% NH 3 ·H 2 O solution in a Erlenmeyer flask, add 15g of standby activated carbon to the above solution, soak in a water bath, vibrate on a shaking table, filter, wash with deionized water until neutral, seal after drying, and obtain modified activated carbon.
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