Calcium-based carbon dioxide adsorbing agent modified by carbon template method and preparation method of adsorbing agent
A carbon dioxide and carbon template technology, applied in chemical instruments and methods, separation methods, other chemical processes, etc., can solve the problems of complex preparation process and principle, easy agglomeration and sintering of particles, and industrial application limitations, etc., to achieve rich pores and preparation The process is convenient and the effect is excellent
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[0028] Example 1
[0029] A method for modifying a calcium-based carbon dioxide adsorbent with a carbon template, comprising the steps:
[0030] Put calcium nitrate into a beaker containing 100ml of deionized water, heat and stir in a magnetic stirrer, then weigh gluconic acid into the beaker to dissolve, and stir at 80°C for 6 hours to obtain a mixed solution;
[0031] Put the mixed solution in a drying oven at 70°C overnight to obtain a dried sample;
[0032] Place the dried sample in N 2 In the atmosphere, the temperature is increased to a carbonization temperature of 500°C-700°C at a rate of 10°C / min, and the carbonization is maintained;
[0033] The carbonized sample is heated to 800°C at a rate of 10°C / min in an air atmosphere, calcined at a constant temperature for 2 hours, and naturally cooled to room temperature to obtain a modified metal skeleton structured nanocomposite calcium-based carbon dioxide adsorbent.
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