| 筛板精馏塔点效率的研究 |
| |
| 引用本文： | 戚俊清,刘亚莉,王云霞. 筛板精馏塔点效率的研究[J]. 郑州轻工业学院学报(自然科学版), 2000, 15(2): 67-70 |
| |
| 作者姓名： | 戚俊清 刘亚莉 王云霞 |
| |
| 作者单位： | 郑州轻工业学院化学工程系!河南郑州450002 |
| |
| 摘 要： | 依据溶质渗透理论 ,得出了汽、液相传质单元数与传质系数、汽液接触时间、相界面积、物系性质及塔板结构的关联式 .采用汽相平推流液相完全混合模型计算点效率 ,计算值以 Col-burn推导的雾沫夹带对塔板效率的影响关系进行修正 .经小型筛板塔在全回流条件下的实验验证 ,点效率的预测值与实验结果吻合较好 ,在正常操作范围内 ,误差 <6 % .
|
| 关 键 词： | 筛板 精馏 效率 |
Study on the point efficiency of the sieve plate in distillation |
| |
| QI Jun qing,LIU Ya li,WANG Yun xia,BAO Tong huaDept. of Chemical Eng.,Zhengzhou Inst. of Light Ind.,Zhengzhou ,China. Study on the point efficiency of the sieve plate in distillation[J]. Journal of Zhengzhou Institute of Light Industry(Natural Science), 2000, 15(2): 67-70 |
| |
| Authors: | QI Jun qing LIU Ya li WANG Yun xia BAO Tong huaDept. of Chemical Eng. Zhengzhou Inst. of Light Ind. Zhengzhou China |
| |
| Affiliation: | QI Jun qing,LIU Ya li,WANG Yun xia,BAO Tong huaDept. of Chemical Eng.,Zhengzhou Inst. of Light Ind.,Zhengzhou 450002,China |
| |
| Abstract: | Based on the penetration theory, a new semiempirical relationship for the prediction of the number of mass transfer units is given. The model of plug flow of vapor with no horizontal mixing has been used for the point efficiencies related to the overall number of mass transfer units. And the predicted efficiencies are modified by the factor of entrainment using Colburn's correlation. The results indicate that calculated point efficiencies agree with the experimental data within 6% error. |
| |
| Keywords: | sieve trays distillation efficiency |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
