A kind of adsorption material for reducing the release amount of hydrogen cyanide in flue gas and preparation method thereof
An adsorption material, a technology for hydrocyanic acid, which is applied in chemical instruments and methods, tobacco, e-liquid filter elements, etc., can solve the problems of reducing the amount of hydrocyanic acid released, not seeing relevant reports, and reducing the quality of cigarette samples. Release volume, good promotion and application significance, and the effect of broadening the field of use
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Embodiment 1
[0022] The adsorbent material prepared in this example that can selectively reduce the release of hydrocyanic acid in mainstream cigarette smoke is prepared by the following method:
[0023] 1. Take 30g of activated carbon, wash it with deionized water until the filtrate is clear, then dry the porous material in a blast oven at 100°C for 10 hours, and cool it naturally to room temperature for later use;
[0024] 2. Dissolve sulfonated cobalt phthalocyanine in 200g of 10% sodium hydroxide aqueous solution, wherein the mass ratio of sodium hydroxide to sulfonated cobalt phthalocyanine is 1:2.5×10 -4 , and then soak the porous material cooled to room temperature in step 1 in the prepared solution, and stir for 20 hours. After soaking, filter the porous material and dry it in a blast oven at 100°C for 10 hours;
[0025] 3. The porous material dried in step 2 is roasted in an argon atmosphere at 400°C for 5 hours, cooled to room temperature, and then taken out to obtain an adsorpti...
Embodiment 2
[0033] This embodiment is the same as embodiment 1, and the basic substance in the alkaline solution in the adjustment step 2 is calcium hydroxide, and the mass ratio of calcium hydroxide: cobalt sulfonated phthalocyanine is 1: 1 × 10 -4 , the firing temperature in step 3 is 300°C, and the firing time is 3 hours. The adsorption material obtained in this example that can reduce the release of hydrocyanic acid in mainstream cigarette smoke has a pore diameter of 4 nm and a specific surface area of 500 m 2 / g, particle size is 30 mesh.
[0034] The obtained adsorbent material, which can reduce the release of hydrocyanic acid in the mainstream smoke of cigarettes, is added to the middle of the cigarette filter to make a three-stage composite filter. The cigarette filter tip of the material was used as a control sample for a cigarette smoking experiment.
[0035] The results are shown in Table 2, wherein the selective reduction rate of chemical components in cigarette smoke = c...
Embodiment 3
[0039] This embodiment is the same as Example 1, the alkaline substance in the alkaline solution in the adjustment step 2 is sodium bicarbonate, the catalyst is polyphthalocyanine copper, and the mass ratio of sodium bicarbonate: polyphthalocyanine copper is 1: 1.5 × 10-4 , the calcination temperature in step 3 is 400°C, and the calcination time is 5 hours. The adsorption material obtained in this example that can reduce the release of hydrocyanic acid in mainstream cigarette smoke has a pore diameter of 2nm and a specific surface area of 800m 2 / g, particle size is 20 mesh.
[0040] Add the obtained adsorbent material, which can reduce the release of hydrocyanic acid in the mainstream smoke of cigarettes, to the middle of the cigarette filter to make a three-stage composite filter. The cigarette filter tip of the material was used as a control sample for a cigarette smoking experiment.
[0041] The results are shown in Table 3, wherein the selective reduction rate of chemi...
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