热传递对甲烷水合物生成速度的影响研究  

Effect of Heat Transfer on Methane Hydrate Formation

作　　者：庞维新 李清平 孙福街 陈光进[2] 

机构地区：[1]中海油研究总院,北京100027 [2]中国石油大学(北京)重质油国家重点实验室,北京102249

出　　处：《天然气与石油》2013年第2期6-9,共4页Natural Gas and Oil

基　　金：国家863计划课题资助项目(2006AA09A209)

摘　　要：为了深入了解传热对甲烷水合物生成过程的影响,在体积10 L的静态反应器中,研究了不同的制冷液温度、流量和气体温度条件下甲烷水合物的生成状况。实验过程中设定水溶液的初始温度为276.15 K,压力为(6.6±0.2)MPa,反应水量为1.92 kg。实验结果表明,当较大量的合成甲烷水合物时,如果甲烷水合物生成热不能被及时带走,反应液体温度将迅速升高,导致甲烷水合物生成速度很快变小甚至停止;同时,气体温度对甲烷水合物的诱导期和生成速度也有重要影响,气体温度越低,甲烷水合物生成诱导期越短,生成速度越快。因此,热传递是影响甲烷水合物生成速度的关键因素。Studied are hydrate formation conditions in 10L static state reactor under different refrigerant fluid temperatures,flows and gas temperatures in order to deeply understand effects of heat transfer on hydrate formation.In experimental process,the initial temperature of water solution is set at 276.15 K,its constant pressure at 6.6±0.2MPa and water solution 1920g.Experimental results show that when a lot of hydrate is formed,reaction temperature of water solution will rise sharply if heat generated in hydrate formation process can not be removed in time,which will result in rapid decrease and even stop of hydrate formation rate.At the same time,gas temperature also has important effect on hydrate induction period and growth,the induction period will be shortened and growth rate will increase if gas temperature drops.Therefore,the heat transfer has important effect on hydrate formation.

关 键 词：甲烷水合物 生成 热传递 气体温度 

分 类 号：P744.4[天文地球—海洋科学]