利用太阳能再生的自制介孔纳米活性氧化铝空气除湿实验研究

Study on Desiccant Performance of Homemade γ-Al_2O_3 with Solar Regeneration

实验室以硝酸铝与碳酸氢铵为主要原料通过溶胶凝胶法在干燥温度为60℃条件下研制了介孔纳米活性氧化铝,样品的比表面积达415.1 m^2/g.将该介孔纳米活性氧化铝材料用于自行建设的太阳能固体除湿实验平台进行除湿和再生实验,发现其具有优越的除湿和再生性能,当再生温度为57℃左右时再生效率最高,在50～60℃区间内DCOP值在0.8以上,可利用太阳能等低品位能作再生热源.

The γ-Al2O3 is synthesized via sol-gel process at 60 ℃ drying temperature conditions with aluminum nitrate and ammonium bicarbonate as the main raw material in laboratory. The particle diameter of the sample is 415.1 m^2/g. The material used to experimental platform of solar dehumidification and regeneration, Find homemade γ-Al2O3 with superior dehumidification and regeneration performance. When the air temperature is 57 ℃, activated alumina reach the Maximum processing amount, and DCOP values above 0. 8 in the regeneration temperature range of 50 -60℃. γ-Al2O3 of laboratory prepared can use solar energy as a renewable low-grade heat source.