【摘要】 四氢呋喃(THF)与水生成的水合物在很多性质上与天然气水合物类似,但相对天然气水合物低温高压苛刻的生成条件,THF水合物在常压下和0℃附近时就可以生成(其平衡温度为4.4℃)。通过实验观察THF水合物生成过程,分析其生成条件,研究其在0℃附近和不同浓度(四氢呋喃溶液浓度)的生成动力学规律,同时将扩散过程和反应过程进行联合,对传质结晶面积进行指数修正,并用实验所得液相浓度关系式确定模型中的液相主体浓度,建立了THF生成动力学的理论模型并作了验证。更多还原

【Abstract】 THF hydrate is similar to natural gas hydrate regarding to some properties.Furthermore,comparing with the rigorous condition for generating natural gas hydrate,which requires low temperature and high pressure,the formation environment of tetrahydrofuran(THF) is comparatively mild.At atmospheric pressure,it can be generated at around 0 ℃(the balance temperature is 4.4 ℃).This text analyzes the formation process and condition of THF with experiment observation and studies the kinetics law for THF formation at different temperature and consistency.Furthermore,it combines the process of diffusion and reaction,and adjusts the exponent of mass transfer crystallization area.With the liquid consistency formula,this text specifies the bulk liquid consistency of the module and thus develops a theory module of kinetics and verifies it.更多还原