制冷剂水合物作为一种理想的蓄冷工质受到广泛关注,但烃类制冷剂与水不互溶造成水合反应诱导时间长、过冷度大.为增大制冷剂与水的相容性,本研究筛选出T20(吐温20)/SPC(大豆卵磷脂)复配表面活性剂,使大量R141b溶于水相,形成热力学稳定的微乳液,考察了微乳液体系中T20浓度、R141b含量、温度等对水合物生成诱导时间的影响,在该体系中均匀快速生成了大量R141b水合物晶体颗粒,诱导时间显著缩短,得到了致密的水合物浆体,提高了蓄冷密度.
Refrigerant hydrate has received extensive attention as an ideal working fluid for cool storage.As most refrigerants are not miscible with water,refrigerant hydrates are often formed after a long induction time under high supercooling degree.In this study,combinational surfactants T20 (Tween 20)/SPC (Soya phosphatidylcho]ine) was selected from several snrfactant additives in preparing thermodynamically stable refrigerant R141b(CH3CCl2F)/water microemulsions to increase the solubility of R141b in water.The effect of T20 concentration,R141b content and temperature were investigated experimentally.Compared to the hydration in R141b/H2O coarse mixture system,induction time of hydration in microemulsion was reduced significantly and cooling storage density of the hydrate slurry was enlarged.
参考文献
| [1] | Gang Li;Yunho Hwang;Reinhard Radermacher .Review of cold storage materials for air conditioning application[J].International Journal of Refrigeration,2012(8):2053-2077. |
| [2] | Ribeiro CP;Lage PLC .Modelling of hydrate formation kinetics: State-of-the-art and future directions[J].Chemical Engineering Science,2008(8):2007-2034. |
| [3] | Yuehong Bi;Tingwei Guo;Tingying Zhu;Shuanshi Fan;Deqing Liang;Liang Zhang .Influence of volumetric-flow rate in the crystallizer on the gas-hydrate cool-storage process in a new gas-hydrate cool-storage system[J].Applied Energy,2004(1):111-121. |
| [4] | Li JP;Liang DQ;Guo KH;Wang RH .The influence of additives and metal rods on the nucleation and growth of gas hydrates[J].Journal of Colloid and Interface Science,2005(1):223-230. |
| [5] | 张保勇,吴强,王永敬.表面活性剂对气体水合物生成诱导时间的作用机理[J].吉林大学学报（工学版）,2007(01):239-244. |
| [6] | 董福海,樊栓狮,梁德青.混合量热法测定水合物分解热[J].中国科学院研究生院学报,2008(06):732-737. |
| [7] | 杜建伟,梁德青,戴兴学,唐翠萍,李新军.Span80促进甲烷水合物生成动力学研究[J].工程热物理学报,2011(02):197-200. |
| [8] | Rudy Rogers;Guochang Zhang;Jennifer Dear man .Investigations into surfactant/gas hydrate relationship[J].Journal of Petroleum Science & Engineering,2007(1/3):82-88. |
| [9] | 殷德宏,任亮,樊栓狮,王金渠.酰胺类动力学抑制剂在水合物体系中形成氢键从头计算[J].大连理工大学学报,2006(03):332-334. |
| [10] | Malcolm A. Kelland .History of the Development of Low Dosage Hydrate Inhibitors[J].Energy & Fuels,2006(3):825-847. |
| [11] | Mark T. Storr;Paul C. Taylor;Jean-Pierre Monfort;P. Mark Rodger .Kinetic Inhibitor of Hydrate Crystallization[J].Journal of the American Chemical Society,2004(11):1569-1576. |
| [12] | Zhong Y.;Rogers RE. .Surfactant effects on gas hydrate formation[J].Chemical Engineering Science,2000(19):4175-4187. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%