炭化活化温度对活性炭-CaCl2复合吸附剂性能的影响
收稿日期: 2014-02-01
修回日期: 2014-06-26
网络出版日期: 2014-08-30
基金资助
广东省中国科学院全面战略合作项目（2012B091100263）；国家科技支撑计划项目（2012BAB12B01）
Effects of Carbonization and Activation Temperatures on the Characteristics of Activated Carbon-CaCl2 Composite Adsorbents
Received date: 2014-02-01
Revised date: 2014-06-26
Online published: 2014-08-30
陆振能 , 卜宪标 , 王令宝 , 姚 远 , 龚宇烈 , 马伟斌 . 炭化活化温度对活性炭-CaCl2复合吸附剂性能的影响[J]. 新能源进展, 2014 , 2(4) : 305 -309 . DOI: 10.3969/j.issn.2095-560X.2014.04.010
Composite adsorbents of activated carbon-CaCl2 were prepared by carbonized and activated of fir crumbs, which had been impregnated in CaCl2 solution for 24 h, at high temperature. Effects of carbonization and activation temperatures on the adsorption performance of composite adsorbents were investigated in this paper, the carbonization and activation temperatures were 400oC, 500oC, 600oC and 700oC, respectively. The scanning electron microscope (SEM) image and element distribution image illustrated that the composite absorbents have smooth surface with well-developed pore structure and CaCl2 is well-distributed in the composite adsorbents. Ammonia adsorption experiments show that, during an adsorption time of 4 h, the adsorption capacity of composite adsorbents increase as the carbonization temperature rises. In the field of adsorption refrigeration, the most appropriate carbonization and activation temperature is 500oC and the adsorption capacity of composite adsorbent prepared at this temperature can be reached 0.488 g/g within 30 min.
[1] 齐朝晖, 汤广发, 李定宇, 等. 吸附制冷技术在余热回收中的应用[J]. 中国能源, 2001, 4: 30-32.
[2] 冯毅, 谭盈科. 吸附式制冷在利用低温能源方面的研究[J]. 节能, 1990, 2: 40-42.
[3] Wang R Z. Adsorption refrigeration research in Shanghai Jiao Tong University[J]. Renewable and Sustainable Energy Reviews, 2001, 5(1): 1-37.
[4] Wang R Z, Oliveira R G. Adsorption refrigeration?an efficient way to make good use of waste heat and solar energy[J]. Progress in Energy and Combustion Science , 2006, 32(4): 424-58.
[5] Hildbrand C, Dind P, Pon M, et al. A new solar powered adsorption refrigerator with high performance[J]. Solar Energy, 2004, 77(3): 311-318.
[6] Akahira A; Alam KCA; Hamamoto Y, et al. Mass recovery adsorption refrigeration cycle-improving cooling capacity[J]. International Jounal of Refrigeration-Revue Internationale Du Froid, 2004, 27(3): 225-234.
[7] Saha B B, Chakrabory A, Koyama S, et al. A new generation cooling device employing CaCl2-in-silica gel-water system[J]. International Journal of Heat and Mass Transfer, 2009, 52: 516-524.
[8] Gong L X, Wang R Z, Xia Z Z, et al. Design and performance prediction of a new generation adsorption chiller using composite adsorbent[J]. Energy Conversion and Management, 2011, 52(6): 2345-2350.
[9] 崔群, 陈海军, 朱跃钊, 等. 吸附制冷用复合吸附剂的吸附性能[J]. 化工学报, 2005, 56(10): 1860-1864.
[10] 崔群, 陆海军, 姚虎卿. 太阳能吸附制冷用复合吸附剂制备及其吸附机理探讨[J]. 太阳能学报, 2004, 25(2): 182-188.
[11] 王国庆, 林勇, 吴锋, 等. 浸泡法制备吸附制冷用复合吸附剂[J]. 北京理工大学学报, 2005, 25(10): 919-922.
[12] Wang L W, Wang R Z, Wu J Y, et al. Compound adsorbent for adsorption ice maker on fishing boats[J]. International Journal of Refrigeration, 2004, 27(4): 401-408.
[13] Wang K, Wu J Y, Wang R Z, et al. Composite adsorbent of CaCl2 and expanded graphite for adsorption ice maker on fishing boats[J]. International Journal of Refrigeration, 2006, 29(2): 199-210.
[14] Tso C Y, Chao Christopher Y H. Activated carbon, silica-gel and calcium chloride composite adsorbents for energy efficient solar adsorption cooling and dehumidification systems[J]. International Journal of Refrigeration, 2012, 35(2): 1626-1638.
[15] Gordeeva L G, Aristov Y I. Composite sorbent of methanol “LiCl in mesoporous silica gel” for adsorption cooling: Dynamic optimization[J]. Energy, 2011, 36(2):
/
| 〈 |
|
〉 |
