Composite filter material loaded with hollow structure denitration sulfur-resistant catalyst, and preparation method thereof
A composite filter material and catalyst technology, which is applied in chemical instruments and methods, separation methods, filtration and separation, etc., can solve the problem of no effective control method, and achieve high-efficiency denitration and sulfur resistance, good sulfur resistance, and inhibition of vulcanization. Effect
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Embodiment 1
[0032] 1) Prepare the hollow structure catalyst first: weigh 50 ml St (styrene), wash with NaOH solution (200mL solution with 20g NaOH solid) for 3 times, wash away the polymerization inhibitor in St, and then wash with distilled water for 2 times; Weigh 0.7g AIBN (azobisisobutyronitrile) into the washed St, magnetic stirring to dissolve. Then weigh 5.4g of polyvinylpyrrolidone PVP (K-30) and 180g of absolute ethanol solution in a 500mL three-necked bottle, stir and dissolve with magnetic force, and transfer the St solution that was previously dissolved with AIBN into a solution filled with N 2 Stir mechanically in the three-necked flask, after emptying, heat the electric heating mantle to 80°C and keep it under N 2 The reaction was carried out in an atmosphere for 20 hours, and the temperature was lowered to below 35°C after the reaction was completed. The product was centrifuged and washed three times, placed in an oven at 100°C for 2 hours, and dried for later use. Accura...
Embodiment 2
[0041] A method for preparing a composite filter material loaded with a hollow structure denitrification and antisulfur catalyst, the specific steps are:
[0042] 1) Add 0.1g sodium lignosulfonate into 50mL deionized water and stir to dissolve to make sodium lignosulfonate solution;
[0043] 2) Add 0.6g polyphenylene sulfide filter material to the obtained sodium lignosulfonate solution, and ultrasonically treat it for 2 hours, so that sodium lignosulfonate is fully coated on the surface of the filter fiber through the mechanism of π-π conjugation;
[0044] 3) Add 0.2 g of the prepared hollow structure denitrification and anti-sulfur catalyst into a small beaker with ethanol and ultrasonically dissolve it to make a suspension;
[0045] 4) Take out the pretreated filter material obtained in step 2) and put it into the suspension obtained in step 3), the filter material is just submerged, ultrasonically treated, and the lignin is electrostatically adsorbed for 3 hours;
[0046]...
Embodiment 3
[0049] A method for preparing a composite filter material loaded with a hollow structure denitrification and antisulfur catalyst, the specific steps are:
[0050] 1) Add 0.1g sodium lignosulfonate into 50mL deionized water and stir to dissolve to make sodium lignosulfonate solution;
[0051] 2) Add 0.6g polyphenylene sulfide filter material to the obtained sodium lignosulfonate solution, and ultrasonically treat it for 2 hours, so that sodium lignosulfonate is fully coated on the surface of the filter fiber through the mechanism of π-π conjugation;
[0052] 3) Add 0.2 g of the prepared hollow structure denitrification and anti-sulfur catalyst into a small beaker with ethanol and ultrasonically dissolve it to make a suspension;
[0053] 4) Take out the filter material obtained from the pretreatment in step 2) and put it into the suspension obtained in step 3), the filter material is just submerged, ultrasonically treated, and the lignin is electrostatically adsorbed for 4 hours...
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