Supported cuprous oxide adsorbent as well as preparation method, application and regeneration method thereof
A cuprous oxide and adsorbent technology, applied in chemical instruments and methods, separation methods, filter regeneration, etc., can solve the problems of low copper reduction rate, difficulty in control, and high reduction temperature, and achieve low reduction temperature, easy control, The effect of high content
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Embodiment 1
[0027] Preparation of adsorbent: Weigh 0.7986g of copper acetate and 1g of carrier MCM-48, grind them for 30min, heat treat them in an air atmosphere at 400°C for 5h, and obtain a sample containing copper oxide after cooling. Take 0.3g of copper oxide-loaded sample and put it in an open container and isolate it with 5mL of formic acid, place it in a closed reaction kettle, put it in an oven at 150°C for 5h, and get the adsorbent loaded with cuprous oxide after cooling.
[0028] Adsorption application experiment: The gas adsorption performance of the adsorbent was measured by gravimetric method (this method is used in the following examples). Take 30 mg of the above adsorbent and place it in a high-precision gravimetric adsorption instrument Hiden IGA-100, fill it with ethylene and ethane at a rate of 10 mbar / min, and adsorb at 25 °C for 50 min at each pressure point. Under normal pressure, the adsorption capacity of the adsorbent to ethylene is 1.034mmol / g, the adsorption capa...
Embodiment 2
[0030] Preparation of adsorbent: Weigh 0.6242g of copper sulfate and 0.5g of carrier MCM-41, grind them for 30min, heat-treat in air atmosphere at 500°C for 6h, and obtain a sample containing copper oxide after cooling. Take 0.4g of copper oxide-loaded sample and put it in an open container and separate it with 4mL of N,N'-dimethylformamide, place it in a closed reaction kettle, put it in an oven at 180°C for 4 hours, and get it after cooling Adsorbent loaded with cuprous oxide.
[0031] Adsorption application experiment: Take 30 mg of the above-mentioned adsorbent and place it in a high-precision gravimetric adsorption instrument Hiden IGA-100, fill it with ethylene and ethane at a rate of 10 mbar / min, and adsorb at 25°C for 50 min at each pressure point. Under normal pressure, the adsorption capacity of the adsorbent to ethylene is 1.023mmol / g, the adsorption capacity to ethane is 0.356mmol / g, and the separation selectivity is 4.97.
Embodiment 3
[0033] Preparation of adsorbent: Weigh 0.9664g of copper nitrate and 1g of carrier SBA-15, grind them for 30min, heat treat them in an air atmosphere at 500°C for 5h, and obtain a sample containing copper oxide after cooling. Take 0.4g of copper oxide-loaded sample and put it in an open container and separate it with 0.4mL of formaldehyde, place it in a closed reaction kettle, put it in an oven at 140°C for 4 hours, and get the adsorbent loaded with cuprous oxide after cooling.
[0034] Adsorption application experiment: Take 30 mg of the above-mentioned adsorbent and place it in a high-precision gravimetric adsorption instrument Hiden IGA-100, fill it with ethylene and ethane at a rate of 10 mbar / min, and adsorb at 25°C for 50 min at each pressure point. Under normal pressure, the adsorption capacity of the adsorbent to ethylene is 1.074mmol / g, the adsorption capacity to ethane is 0.32mmol / g, and the separation selectivity is 8.76.
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