摘要
为研究瓦斯水合物储运过程中的稳定性,利用自建的水合物分解实验装置,在封闭常温条件下,探究甲烷水合物分解过程温度场的分布特征。利用可视化实验系统研究了两种体系甲烷水合物分解反应过程和分解过程的温度分布。结果表明,甲烷水合物分解速率先快速增大,随后缓慢增长,最后趋于平缓。随着甲烷水合物的分解,反应体系的温度先极速升高,而后缓慢升高,最后达到设定分解温度。反应体系下层温度上升较上层快,最后三层趋于设定分解反应温度。两种实验体系每层温度达到最大温升速率即三层达到最大分解速率所用时间都是下层﹤中层﹤上层,即下层最先达到最大分解速率,其次是中层,最后是上层。研究结果有望对瓦斯水合物在常温的储存有所借鉴。
In order to study the stability of gas hydrate during storage and transportation,the distribution characteristics of the temperature field during hydrate dissociation were studied by using the self-built experimental apparatus for hydrate dissociation under the closed room temperature condition.The temperature distribution and reaction process of methane hydrate decomposition in two systems were studied by visual experimental system.The results show that the dissociation rate of methane hydrate increases rapidly at first,then increases slowly,and finally becomes flat.With the dissociation of methane hydrate,the temperature of the reaction system increases rapidly,then slowly,and finally reaches the set dissociation temperature.The temperature of the lower layer of the reaction system rises faster than that of the upper layer,and finally three layers tend to the set dissociation reaction temperature.The results are expected to be useful for the storage of gas hydrate at room temperature.
作者
陈文胜
侯凤才
吴琼
刘传海
王洪粱
CHEN Wen-sheng;HOU Feng-cai;WU Qiong;LIU Chuan-hai;WANG Hong-liang(School of Safety Engineering,Heilongjiang University of Science&Technology,Haerbin 150022,Heilongjiang,China;Yellow River Conservancy Technical Institute,Kaifeng 475004,Henan,China)
出处
《合成材料老化与应用》
2021年第6期65-68,共4页
Synthetic Materials Aging and Application
基金
黑龙江省自然科学基金项目“瓦斯水合物分解过程温度场特征及传热机理研究”(E2016058)。
关键词
瓦斯水合物
分解实验
分解速率
温度场
gas hydrate
dissociation experiment
dissociation rate
temperature field
作者简介
陈文胜,讲师,2015年博士毕业于中国矿业大学安全技术及工程专业,现主要从事瓦斯水合物方向的研究工作。
