Method for producing high-purity alpha-olefin by adopting backpack type reactive distillation device
A high-purity, olefin technology, applied in separation methods, chemical instruments and methods, hydrocarbon purification/separation, etc., can solve problems such as lack of high-purity, improve catalytic efficiency and service life, achieve single-column separation, adsorption capacity big effect
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Embodiment 1
[0041] Example 1: ZnO-ZrO 2 / Synthesis of ZSM molecular sieve
[0042] Under stirring conditions, 2.85g water glass (Na 2 SiO 3 9H 2 (2, molecular weight 284g / mol), 300g aluminum isopropoxide, 350g deionized water join in 1.83g n-butylamine and mix;
[0043] After mixing evenly, add 5.95g of Zn(NO 3 ) 2 ·6H 2 O, 0.68g of Zr(NO 3 ) 4 ·5H 2 O. 2.30g of glycolic acid, put the beaker in a water bath and stir at 80°C to fully dissolve it. After the solid is completely dissolved, transfer it to an oven at 170°C for hydrothermal reaction for 36 hours. After the reaction, evaporate to obtain viscosity Gel, put it into a muffle furnace after grinding, and keep it at 500°C for 4h to get ZnO-ZrO 2 / ZSM molecular sieves as heterogeneous catalysts.
[0044] Similarly, repeat the above preparation process without adding Zn(NO 3 ) 2 ·6H 2 O and Zr(NO 3 ) 4 ·5H 2 O, to obtain silica-alumina molecular sieves that do not contain active double metal oxides as adsorbents.
Embodiment 2
[0045] Example 2: ZnO-ZrO 2 / Synthesis of ZSM molecular sieve
[0046] Under stirring condition, 2.84g water glass (Na 2 SiO 3 9H 2 (2, molecular weight 284g / mol), 370g aluminum nitrate, 560g deionized water join in 1.5g n-butylamine and mix;
[0047] After mixing evenly, add 3.56g of Zn(NO 3 ) 2 ·6H 2 O, 0.68g of Zr(NO 3 ) 4 ·5H 2 O. 1.52g of glycolic acid, put the beaker in a water bath and stir at 90°C to make it fully dissolve. After the solid is completely dissolved, transfer it to an oven at 160°C for hydrothermal reaction for 24 hours. After the reaction, evaporate to obtain viscosity Gel, put it into the muffle furnace after grinding, and keep it at 550°C for 3h to get ZnO-ZrO 2 / ZSM molecular sieves as heterogeneous catalysts.
[0048] Similarly, repeat the above preparation process without adding Zn(NO 3 ) 2 ·6H 2 O and Zr(NO 3 ) 4 ·5H 2 O, to obtain silica-alumina molecular sieves that do not contain active double metal oxides as adsorbents.
Embodiment 3
[0049] Example 3: ZnO-ZrO 2 / Synthesis of ZSM molecular sieve
[0050] Under stirring conditions, 2.1g of silica sol (SiO 2 ·8H 2 (2), 400g aluminum isopropoxide, 820g deionized water join in 3.0g di-n-propylamine and mix;
[0051] After mixing evenly, add 11.58g of Zn (NO 3 ) 2 ·6H 2 O, 1.02g of Zr(NO 3 ) 4 ·5H 2 O. 3.04g of glycolic acid, put the beaker in a water bath and stir at 80°C to fully dissolve it. After the solid is completely dissolved, transfer it to an oven at 180°C for hydrothermal reaction for 48 hours. After the reaction, evaporate to obtain viscosity Gel, put it into the muffle furnace after grinding, and keep it at 550°C for 3h to get ZnO-ZrO 2 / ZSM molecular sieves as heterogeneous catalysts.
[0052] Similarly, repeat the above preparation process without adding Zn(NO 3 ) 2 ·6H 2 O and Zr(NO 3 ) 4 ·5H 2 O, to obtain silica-alumina molecular sieves that do not contain active double metal oxides as adsorbents.
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