| 多级连续闪蒸结晶过程的模拟与分析 |
| |
| 引用本文： | 龙秉文,周海鸽,杨祖荣,王利生. 多级连续闪蒸结晶过程的模拟与分析[J]. 北京化工大学学报(自然科学版), 2006, 33(3): 6-10 |
| |
| 作者姓名： | 龙秉文 周海鸽 杨祖荣 王利生 |
| |
| 作者单位： | 北京化工大学化学工程学院,北京,100029;中国纺织工业设计院,北京,100037;北京理工大学化工与环境学院,北京,100081 |
| |
| 摘 要： | 文中基于物料衡算方程、热量衡算方程、粒数衡算方程、溶解度方程和结晶动力学方程建立了多级连续闪蒸结晶器的数学模型。对于模型中非线性方程组的求解，提出了以结晶内浓度为迭代变量的新迭代算法，该算法初值易确定并具有良好的稳健性和收敛速度，计算结果与文献报道值符合良好。在此基础上以一个KNO3三级连续闪蒸结晶过程为例考察了首级结晶器的温度和停留时间以及进料浓度对结晶产品粒度分布的影响。
|
| 关 键 词： | 多级连续闪蒸结晶 模型 算法 收敛 粒度分布 |
| 收稿时间： | 2005-10-19 |
| 修稿时间： | 2005-10-19 |
Simulation and analysis of multistage flash crystallization process |
| |
| LONG Bing-wen,ZHOU Hai-ge,YANG Zu-rong,WANG Li-sheng. Simulation and analysis of multistage flash crystallization process[J]. Journal of Beijing University of Chemical Technology, 2006, 33(3): 6-10 |
| |
| Authors: | LONG Bing-wen ZHOU Hai-ge YANG Zu-rong WANG Li-sheng |
| |
| Affiliation: | 1 College of Chemical Engineering, Beijing University of Chemical Technology , Beijing 100029, China; 2 China Textile Industrial Engineering Institute, Beijing, 100037,China;3 School of Chemical and Environment Engineering, Beijing Institute of Technology, Beijing 100081, China |
| |
| Abstract: | In this work a mathematical model of a continuous involving equations of mass balance, heat balance, population multistage evaporation balance, solubility and crystallizer is established, crystallization kinetics. A new iteration algorithm for solution of the nonlinear equations is proposed and it was found that the new algorithm has fairly good stability and convergence. The simulation results show good agreement with the literature data. The influence of temperature, effective volume distribution of crystallizers and the feed concentration on the CSD of the products was investigated by taking a three-stage KNO3 flash crystallization process as a case study. |
| |
| Keywords: | multistage flash crystallization model algorithm convergence crystal size distribution(CSD) |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《北京化工大学学报(自然科学版)》浏览原始摘要信息 |
|
点击此处可从《北京化工大学学报(自然科学版)》下载全文 |
|
