A kind of synthesis method of porous nickel formate grains for gas separation
A synthesis method and gas separation technology, applied in separation methods, gas fuel, gas treatment, etc., can solve the problems of separation performance degradation, failure to meet industrial needs, low separation factor, etc., and achieve the effect of solving environmental problems
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Embodiment 1
[0045] Weigh 47g of nickel nitrate and dissolve it in 850mL DMF to form a mixed solution I, weigh 80mL of methyl formate and mix it with 100mL DMF to form a mixed solution II, and add the mixed solution I dropwise to the mixed solution II within 30 minutes to form a uniform mixture. Transfer the above-mentioned homogeneous mixture into a 2L high-pressure reactor, react at 100°C for 24 hours under stirring conditions, and then cool down to room temperature; separate the mixed mixture after the reaction, and then wash it twice with 180mL methanol, each time for 30min, acetone 50mL was washed once for 30min, dried at 60°C for 6h, and vacuum activated at 150°C for 6h to obtain porous nickel formate particles, such as figure 1 shown.
[0046] The N of the obtained adsorbent material 2 The specific surface area is 433m 2 / g (determined by Langmuir method);
[0047] The obtained adsorption material is at 298K, 2bar, CH 4 / N 2 The equilibrium adsorption separation factor is 6.1. ...
Embodiment 2
[0049] The synthesis method is the same as in Example 1, and 13 mL of water is added to the mixed solution I
[0050] The resulting porous nickel formate particles, such as figure 2 shown.
[0051] The obtained adsorbent material N 2 The specific surface area is 453m 2 / g (determined by Langmuir method);
[0052] The obtained adsorption material is at 298K, 2bar, CH 4 / N 2 The equilibrium adsorption separation factor is 6.6.
Embodiment 3
[0054] The synthesis method is the same as in Example 1, and 32 mL of water is added to the mixed solution I
[0055] The resulting porous nickel formate particles, such as image 3 shown.
[0056] The obtained adsorbent material N 2 The specific surface area is 413m 2 / g (determined by Langmuir method);
[0057] The obtained adsorption material is at 298K, 2bar, CH 4 / N 2 The equilibrium adsorption separation factor is 5.6.
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