| 氯化钙/硅胶和氯化钙/凹凸棒土复合吸附剂的制备及性能对比 |
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| 引用本文： | 陆振能,卜宪标,王令宝,马伟斌.氯化钙/硅胶和氯化钙/凹凸棒土复合吸附剂的制备及性能对比[J].可再生能源,2012(9):95-99. |
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| 作者姓名： | 陆振能 卜宪标 王令宝 马伟斌 |
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| 作者单位： | 中国科学院广州能源研究所,中国科学院可再生能源与天然气水合物重点实验室;中科院研究生院 |
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| 基金项目： | 中科院院长基金项目(y007y51001);广东省外专局项目(y006051001) |
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| 摘 要： | 分别通过浸渍法和焙烧法制备了两种复合吸附剂氯化钙/硅胶和氯化钙/凹凸棒土。在温度40℃、相对湿度20%条件,氯化钙/硅胶复合吸附剂的吸水性能随样本中氯化钙含量的增加而增加。氯化钙/凹凸棒土的最佳焙烧条件为焙烧温度300℃,焙烧时间2 h。在相对湿度为20%,吸附时间分别为15,20 min时,氯化钙/凹凸棒土的SCP分别为140.26,128.92 W/kg,远大于同等条件下氯化钙/硅胶的SCP。两种吸附剂的吸附性能对比表明,氯化钙/凹凸棒土吸附剂由于其良好的吸水性能更加适用于低温驱动的吸附制冷机。
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| 关 键 词： | 吸附制冷 复合吸附剂 硅胶 氯化钙 凹凸棒土 |
Preparation and performance comparison of silica gel/calcium chloride and attapulgite/calcium chloride composite adsorbents |
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| LU Zhen-neng,BU Xian-biao,WANG Ling-bao,MA Wei-bin.Preparation and performance comparison of silica gel/calcium chloride and attapulgite/calcium chloride composite adsorbents[J].Renewable Energy,2012(9):95-99. |
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| Authors: | LU Zhen-neng BU Xian-biao WANG Ling-bao MA Wei-bin |
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| Affiliation: | 1(1.Guangzhou Institute of Energy Conversion,Key Laboratory of Renewable Energy and Gas Hydrate,Chinese Academy of Sciences,Guangzhou 510640,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100864,China) |
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| Abstract: | Composite adsorbents of CaCl2/silica gel and CaCl2/attapulgite were prepared by impregnation method and calcination method respectively.The adsorption rate is measured at adsorption temperature of 40 ℃ and relative humidity of 20%,the water uptake of composite adsorbent CaCl2/silica gel increases with the increase of CaCl2 content.Under the best performance,CaCl2/attapulgite calcination time is 2 hr and calcination temperature is 300 ℃,The SCP of adsorbent CaCl2/attapulgite can reach 140.26 and 128.92 W/kg at adsorption time of 15 and 20 min with relative humidity of 20%,which is largely superior to that of CaCl2/silica gel.Compared with CaCl2/silica gel,the outstanding capacity of water uptake of CaCl2/attapulgite adsorbent at very low regeneration temperature makes this adsorbent promising for air conditioning application driven by low temperature heat source. |
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| Keywords: | adsorption refrigeration composite adsorbent silica gel calcium chloride attapulgite |
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