Cu-ssz-13/m-alpo composite molecular sieve catalyst, preparation method and application thereof
A composite molecular sieve, cu-ssz-13 technology, applied in molecular sieve catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as low stability, low yield and selectivity, complex pore structure distribution, etc. problems, to achieve the effect of improving thermal stability and hydrothermal stability
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Embodiment 1
[0040]Cu-SSZ-13 / M-AlPo Composite Molecular Sieve Synthesis
[0041]375.25 g of sodium aluminate [Naalo2The purity is ≥98% wt., 4.57 mol] is dissolved in 1214.73 mL of deionized water, and the mixture is uniformly divided into two parts by two parts by mass, and it is recorded as a solution S.SSolution SP, 939.31 g of acidic silica sol [SiO240 wt.%, 6.26 mol], 212.95 g of Cu-DETA chelate [was prepared from copper salt with divintrine, 1.31 mol, N (Cu: DETA = 1: 1)] is put into SS solution, stirring After 171.25 g of sodium hydroxide [NaOH, 4.28 mol] was added to the above solution to adjust the pH between 9 to 10, and the solution was obtained after stirring for 1.2 h.S'; 199.37 g of orthophosphate [h3PO485% WT, 1.72mol], 66.16 g of zinc nitrate [Zn (NO3)3· 6h2O, 0.22 mol] and 126.23 g of triethylamine [TEA, 1.24mol] investmentPMedium, stirred 0.6H to obtain solution SP', The solution SS'And solution SP'Substitated at 80 ° C for 4.9 h, then subsequentlyS'And solution SP'Uniform mixing...
Embodiment 2
[0043]Cu-SSZ-13 / M-AlPo Composite Molecular Sieve Synthesis
[0044]579.41 g of aluminum sulfate [Al2(SO4)3· 18h2O, purity ≥ 98 wt.%, 0.87 mol] is dissolved in 11713.22 ml of deionized water, stir evenly, the solution is divided into two parts by two parts by mass, which is recorded as solution S.SSolution SP, 166.69g of white carbon black [SIO2, 99% wt., 2.78mol], 217.18g of copper nitrate [Cu (NO3)2· 3h2O, 99% wt., 0.92 mol] and 174.16 g of tetraethylene 4 [TEPA, 0.92 mO] were put into SS solution, and 229.71 g of lithium hydroxide [LiOH, 9.57 mol] was added to the above solution to regulate the solution pH after stirring. The value is between 8 to 9, and the solution is obtained after stirring 1.1H.S'; 91.75 g of a trioxide of phosphate [NH4Hide2PO40.80mol], 33.54 g of nitrate [Ga (NO3)3· 9h2O, 0.13 mol] and 21.87 g of ethylamine [EA, 0.49mol] investmentPMedium, stirred 2.2H solution SP'; Solution SS'And solution SP'Is 0.5 h at 120 ° C for 0.5 h, then subsequentlyS'And solution SP'...
Embodiment 3
[0046]Cu-SSZ-13 / M-AlPo Composite Molecular Sieve Synthesis
[0047]Tell 5325.26 g of aluminum nitrate [al (NO3)3· 9h2O, purity ≥98% wt., 14.19 mol] 50% and 50% by mass of mass, and 50%, respectively, 50%, respectively, 50% by mass, 50%, respectively, 50%, respectively, 50%, respectively, 50%, respectively, according to the mass fraction, recorded as solution SSSolution SP, 8537.85 g of silica sol [SiO240 wt%, 56.92mol], 258.41 g of acetate [Cu (OAC)2· H2O, purity ≥ 98% wt., 1.29 mol] and 188.60 g of trivadic titania [Teta, 1.29 mol], 1329.99 g of potassium hydroxide [KOH, 22.71 mol] were added to the above solution to regulate the solution pH At 10 to 11, the solution is obtained after stirring for 1 h.S'; 1555.38 g of orthophosphate [h3PO485% WT, 13.49mol], 823.96 g of manganese nitrate [MN (NO3)2· 4h2O, 3.28 mol] and 2327.21 g of di-amine [DPA, 22.99 mol], stirred 2.1H solution SP'; Solution SS'And solution SP'Is 0.6 h at 90 ° C, respectively, after the solution SS'And solution SP'...
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