1) Improved double film theorem of mass transfer
改性传质双膜论
2) double film theory
双膜理论
1.
The rule of the gas-liquid-solid three-phase carbonation reaction of lithium carbonate was revealed by double film theory.
用双膜理论揭示了碳酸锂气、液、固三相碳化反应的规律。
2.
By way of continous bubbling Carbonation method as the object of study and high purity CO 2 as carbonation gas, the mechanism of carbonation reaction with double film theory is discussed.
以连续鼓泡碳化法为研究对象 ,以高纯度CO2 为碳化气 ,用双膜理论探讨了生产超细碳酸钙的碳化反应机理 ,为实际生产中碳化反应速率与产品粒径大小实行分级控制、防止包裹返碱现象的发生、优化工艺参数提供了理论依据。
3) double-film theory
双膜理论
1.
By means of analyzing the solubility and solubility rate of gas in water, and making application of double-film theory and Fick's law, the solubility rate of nitrogen in water is theoretically calculated in ga.
通过对气体在水中溶解度和溶解速率的分析,应用气体溶解速率的“双膜理论”和气体扩散的“菲克定律”,从理论上计算出气密性试验中的氮气在水中的溶解速率。
2.
On the basis of the double-film theory model,a kinetics equation was proposed through ana.
通过反应机理分析,借助气-液传质的双膜理论模型,导出了碳酸锂碳化反应动力学方程,并根据动力学方程解释了实验现象。
3.
Based on the double-film theory, the oxygen transfer character was studied in a new type of structure modified biological fluidized reactor (SMBFR), adopting clean water aeration in the reactor technique.
气体的转移是废水处理过程中的重要环节,基于气体转移的“双膜理论”,采用在反应器中清水曝气的方法,对新型生物流化反应器进行了氧转移特性的研究。
4) two film theory
双膜理论
1.
Based on the two film theory as a starting point, this paper derives the expression of liquid film thickness ( δ ) from the angle of the turbulent structure.
以双膜理论为出发点 ,从水流紊动结构角度上推导了液膜厚度δ的表达式 ,并用实测资料拟合了其中的比例系数 ,从而使含参数δ的传质理论模型能够用于预测河流复氧作
5) film theory
双膜理论
1.
And a mathematical model was put forward to predict semi-dry FGD process in quench tower based on dual film theory and shrinking core model.
脱硫反应模型全面考虑了急冷塔内恒速干燥阶段、降速干燥阶段、干燥后阶段,采用双膜理论模型来模拟干燥阶段的脱硫反应过程,采用未反应核心收缩模型来模拟干燥后阶段的脱硫反应过程。
6) film mass transfer
液膜传质
1.
The diffusivity of EM was determined by fitting the adsorption rate curves for different temperatures and initial EM concentrations, and the film mass transfer coefficient and pore diffusion coefficient we.
采用液膜及孔内扩散模型,模拟不同温度和不同红霉素(EM)初始浓度条件下,大孔吸附树脂HZ816及XAD16吸附红霉素的动态吸附曲线,并获得液膜传质及孔内扩散系数;考察了温度及溶质浓度对红霉素在两种树脂中吸附动力学的影响。
2.
With the film mass transfer,porous diffusion and axial dispersion were taken into account,and a film and pore diffusion model was employed to describe the diffusive mass transfer of .
并采用基于液膜及孔内扩散模型的动力学模型,同时考虑吸附树脂颗粒内外扩散阻力及轴向扩散的影响,研究了固定床上红霉素在大孔吸附树脂中的吸附动力学,并从穿透曲线回归得到液膜传质系数孔内扩散系数。
补充资料：双膜理论
分子式：
CAS号：
性质：是由Lewis-Whitman(1924)提出的关于异相流体间传质机理的假说。它认为在呈湍流流动的两流体接触面的两侧，分别存在着流体的有效膜；两流体间传质的全部阻力都集中在双膜内，溶质以稳态分子扩散方式通过双膜；在两相接触界面上，两相浓度达到平衡。双膜学说尽管有局限性，但作为说明气体吸收、蒸馏、液液萃取等传质机理的理论，至今仍被广泛应用。
CAS号：
性质：是由Lewis-Whitman(1924)提出的关于异相流体间传质机理的假说。它认为在呈湍流流动的两流体接触面的两侧，分别存在着流体的有效膜；两流体间传质的全部阻力都集中在双膜内，溶质以稳态分子扩散方式通过双膜；在两相接触界面上，两相浓度达到平衡。双膜学说尽管有局限性，但作为说明气体吸收、蒸馏、液液萃取等传质机理的理论，至今仍被广泛应用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条