Modeling of heterogeneous systems in a plasma jet reactor
Modeling of heterogeneous systems in a plasma jet reactor
复制标题
等离子喷射反应器中异质系统的建模
DOI：
10.1002/aic.690210508
复制
发表时间：
1975
期刊：
影响因子：
3.7
通讯作者：
W. Gauvin
中科院分区：
文献类型：
--
作者：
D. Bhattacharyya;W. Gauvin
建立了考虑三维、非等温、湍流、可压缩、旋转、受限流动的等离子体喷射反应器(5000~12000 K)行为的理论模型。通过求解轴向、径向和切向的运动方程来预测单粒子的轨迹。计算分别针对氮气和氩气进行。然后根据进料颗粒的粒度分布、浓度分布和装载率将该模型推广到多颗粒系统。
计算结果被应用于二硫化钼颗粒分解为金属钼和单质硫的研究。给出了以下变量对颗粒历史(轨迹、温度和转化率)的影响：颗粒尺寸、喷嘴出口温度和速度、喷射速度、喷射位置和角度、涡流速度和环境温度条件。
A theoretical model of the behavior of a plasma jet reactor (5 000 K to 12 000 K) considering a three-dimensional, nonisothermal, turbulent, compressible, swirling, confined flow is developed. Single particle trajectories are predicted by solving the equations of motion for the axial, radial, and tangential directions. Calculations are carried out for both argon and nitrogen gases. The model is then extended to a multiparticle system on the basis of a feed particle size distribution, concentration distribution, and loading ratio.
The calculations are applied to a study of the decomposition of molybdenum disulfide particles into molybdenum metal and elemental sulfur. Results are presented in terms of the effects on the particle history (trajectory, temperature, and conversion) of the following variables: particle size, nozzle exit temperature and velocity, injection velocity, location and angle of injection, swirl velocity, and ambient temperature conditions.