Additive agent selectively reducing aldehydes matter in cigarette flue gas, production method and application thereof
A cigarette smoke and additive technology, which is applied in the field of additives for selectively reducing aldehydes in cigarette smoke, can solve the problems of reduced adsorption of aldehydes, secondary pollution, easy desorption, etc., and achieves improved adsorption efficiency, Improved reactivity and low cost effect
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Embodiment 1
[0037] Select coarse-porous silica gel with a particle size of 20-60 mesh and a pore size of 10-150 nm, and calcinate it in a muffle furnace at 400°C for 1 hour to remove residual organic matter in the pores, soak it in 12% hydrochloric acid overnight, and wash with water until the pH 7 to 8, dry the preliminarily treated carrier, add a saturated tryptophan solution, use the impregnation method, reach equilibrium through ion exchange, adsorption, etc. after 12 hours, and apply the prepared additive to the cigarette filter .
Embodiment 2
[0039]Select coarse-porous silica gel with a particle size of 20-60 mesh and a pore size of 10-150 nm, and calcinate it in a muffle furnace at 400°C for 1 hour to remove residual organic matter in the pores, soak it in 12% hydrochloric acid overnight, and wash with water until the pH For about 7-8, dry the preliminarily treated carrier, add a saturated solution of melamine phosphate, etc., use the impregnation method, introduce amino groups, amide groups, etc. by ion exchange, adsorption, etc. after 12 hours, filter and wash. Apply the prepared additive to cigarette filters, and test the aldehydes in cigarette smoke by high-performance liquid chromatography. The test results are shown in Table 1. The results show that after using the additive, formaldehyde in cigarette smoke is reduced by 48%, and acrolein is reduced 27%, 50% reduction in crotonaldehyde.
Embodiment 3
[0041] Select coarse-porous silica gel with a particle size of 20-60 mesh and a pore size of 10-150 nm, and calcinate it in a muffle furnace at 400°C for 1 hour to remove residual organic matter in the pores, soak it in 12% hydrochloric acid overnight, and wash with water until the pH For about 7-8, dry the preliminarily treated carrier, add saturated polyphosphate amine solution, adopt impregnation method, reach equilibrium through ion exchange and adsorption after 12 hours, filter and wash. Apply the prepared additive to cigarette filters, and test the aldehydes in cigarette smoke by high-performance liquid chromatography. The test results are shown in Table 1. The results show that after using the additive, formaldehyde in cigarette smoke is reduced by 38%, and acrolein is reduced 21%, 50% reduction in crotonaldehyde.
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