化工进展Issue(6)：1357-1362,6.DOI:10.3969/j.issn.1000-6613.2013.06.026
制冷用木屑基质复合吸附剂的制备及性能测试
Preparation and performance testing of sawdust based composite adsorbents for refrigeration
摘要
Abstract
To develop a high performance adsorbent,sawdust-CaCl2 composite adsorbents were prepared by carbonization,and their adsorption performance were assessed by measuring the variation of pressure in a vessel with a known volume,with NH3 as the refrigerant. The effects of raw material ratio,carbonization temperature on the adsorption performance of the prepared sawdust-CaCl2 composite adsorbents were investigated. The composite adsorbents were characterized by scanning electron microscope (SEM) and X-ray energy dispersive spectroscopy. The results show that,the prepared composite adsorbents have rich microporous structure,with CaCl2 content as high as 70%. Besides,CaCl2 and the sawdust mixed uniformly. The burn-off of the sample augments with the increase of carbonization temperature,and the NH3 adsorption quantity increases first and then decreases with the increase of carbonization temperature. Compared with the carbonization temperature,the raw material ratio plays the dominant influence on the adsorption properties of the samples. The maximum specific cooling power reaches 1418.16 W/kg,and average specific cooling power reaches 876.1 W/kg with the cycle duration of 10 minutes. The present study demonstrates that the sawdust-CaCl2 composite adsorbents prepared by carbonization are free of salt swelling and agglomeration,and provide a better mass transfer performance.关键词
炭化法/复合吸附剂/木屑/氯化钙/吸附制冷Key words
carbonization method/composite adsorbent/sawdust/CaCl2/adsorption refrigeration分类
通用工业技术引用本文复制引用
王令宝,张刚,卜宪标,李华山..制冷用木屑基质复合吸附剂的制备及性能测试[J].化工进展,2013,(6):1357-1362,6.基金项目
中科院院长基金（y007y51001）、国家自然科学基金（51106161）及广东省中国科学院全面战略合作项目（2012B091100263）。 （）
