Modified molecular sieve additive for reducing CO emission in flue gas, preparation method and application thereof
A molecular sieve and additive technology, applied in the application, tobacco, e-liquid filter and other directions, can solve the problem of short time, and achieve the effects of simple preparation, reduced CO emission, and good application prospects
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Embodiment 1
[0027] Add 1g of polyvinylpyrrolidone with a molecular weight of 1,000,000 to 100g of water, stir to dissolve it into a PVP aqueous solution, adjust the pH to 4.0 with acetic acid, add 1g of sodium silicate, and react at room temperature for 1hr, then add 10g Silica-alumina molecular sieve, stirred at room temperature for 30 minutes, filtered, and the filter residue was dried to obtain a modified molecular sieve additive that reduced the amount of CO released in the flue gas;
[0028] The modified molecular sieve additive was added to the cigarette holder in an amount of 50 mg / stick, and the cigarette was made according to the conventional method. The smoke components of the prepared cigarettes were analyzed. At the same time, a blank sample and a control sample were set for comparison. The blank sample was a cigarette without any material added. The results are shown in Table 1:
[0029] Table 1 Determination results of flue gas data
[0030]
Embodiment 2
[0032] Add 10g of vinylpyrrolidone-maleic acid copolymer with a molecular weight of 1000 to 100g of water, stir to dissolve it into a PVP aqueous solution, adjust the pH to 5.5 with hydrochloric acid, add 1g of potassium silicate, and react at room temperature. After 4 hours, add 1 g of phosphorus-aluminum molecular sieve, stir at room temperature for 60 minutes, filter, and dry the filter residue to obtain a modified molecular sieve additive that reduces the amount of CO released in the flue gas;
[0033] The modified molecular sieve additive was added to the cigarette holder in an amount of 10 mg / stick, and the cigarette was made according to the conventional method. The smoke components of the prepared cigarettes were analyzed. At the same time, a blank sample and a control sample were set for comparison. The blank sample was a cigarette without any material added, and the control sample 2 was a cigarette directly added with the same weight and the same molecular sieve into ...
Embodiment 3
[0038] 3g of polyvinylpyrrolidone with a molecular weight of 5000 and 3g of vinylpyrrolidone-maleic acid copolymer with a molecular weight of 100,000 were added to 100g of water, stirred to dissolve into a PVP aqueous solution, adjusted to pH 5.0 with hydrochloric acid, and then added. 3g of sodium silicate, after reacting for 1hr at room temperature, add 6g of clinoptilolite, stir at room temperature for 30min, filter, and dry the filter residue to obtain a modified molecular sieve additive that reduces the amount of CO released in the flue gas;
[0039] The modified molecular sieve additive was added to the cigarette holder in an amount of 100 mg / stick, and cigarettes were made according to conventional methods. The smoke composition of the prepared cigarettes was analyzed. At the same time, a blank sample and a control sample were set for comparison. The blank sample was a cigarette without any material added. The results are shown in Table 3:
[0040] Table 3 Determinatio...
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