%0 Journal Article %T Determination of dissociation heat of hydrate by mixing calorimetry
混合量热法测定水合物分解热 %A DONG Fu-Hai %A FAN Shuan-Shi %A LIANG De-Qing %A
董福海 %A 樊栓狮 %A 梁德青 %J 中国科学院研究生院学报 %D 2008 %I %X A method based on the mixing calorimetry for determination of hydrate dissociation heat was introduced. Under the condition of atmospheric pressure, the dissociation heat of tetrahydrofuran (THF) hydrate, which was about (275.62  2.64) kJ/kg at 4.4 C of phase-transition temperature, was determined by this method. Similarly, the dissociation heat of CH3CFCl2 (HCFC-141b) hydrate was about (348.48  3.08) kJ/kg at the phase-transition temperature of 8.4 C. By comparison with those previous results, the maximum relative error is 2% and 6.6%, respectively. To obtain the optimal results of dissociation heat, the mass ratio between hot water and THF hydrate or HCFC-141b hydrate has been optimized as well. %K 混合量热法 %K 水合物 %K 分解热 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=B47B31F6349F979B&jid=67CDFDECD959936E166E0F72DE972847&aid=7C6A2067B1AA55547CED493C7D4CB924&yid=67289AFF6305E306&vid=96C778EE049EE47D&iid=B31275AF3241DB2D&sid=20D29EF591CB2C94&eid=8CC50269EED5BB47&journal_id=1002-1175&journal_name=中国科学院研究生院学报&referenced_num=0&reference_num=17