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1)  pressure swing distillation
变压精馏
1.
Stable state simulation and optimization of pressure swing distillation for admixture ethanol-benzene;
乙醇-苯混合物变压精馏的稳态模拟及优化
2)  pressure-swing distillation
变压精馏
1.
Simulation of diabatic distillation with heat integration for two conventional columns and azeotropic pressure-swing distillation are also conducted using benzene-toluene and ethanol-benzene systems.
本文以苯-甲苯、乙醇-水体系为例,对塔段透热全回流实验装置进行了模拟;同时对苯-甲苯体系的普通双塔塔段透热精馏和乙醇-苯共沸物系的塔段透热变压精馏工艺进行了模拟研究,并与双效精馏工艺进行了用能对比。
2.
In this paper,a process of pressure-swing distillation for separation of HFC-245fa and HF azeotrope was simulated by Aspen Plus.
在计算机模拟和分析的基础上,研究了变压精馏分离五氟丙烷-氟化氢的工艺流程。
3)  double effect pressure swing distillation
双效变压精馏
1.
Optimization simulation of double effect pressure swing distillation was performed by Aspen Plus software aiming at minimal energy consumption and bounded purities of toluene and butanol.
采用双效变压精馏工艺流程分离甲苯-正丁醇物系。
4)  vacuum rectification
减压精馏
1.
The vacuum rectification of crude biodiesel was analyzed by simulation software .
0是较优的减压精馏操作范围。
2.
Application of vacuum rectification technology, molecular distillation technology, and high pressure rectification technology in oils and fats industry were reviewed.
综述了精馏技术在油脂工业中的应用进展,主要介绍了减压精馏技术、分子蒸馏技术以及高压精馏技术在现代油脂工业中的应用,并对精馏技术在今后油脂工业的应用前景及发展方向进行了阐述。
3.
The new separation technology of the high-purity anethole from star anise oil was studied,especially on the optimum separation conditions of freezing crystallization and vacuum rectification.
对冷冻结晶得到的茴脑粗品进行减压精馏的最佳工艺条件为:回流比10∶7,精馏温度塔釜140℃,真空度666。
5)  vacuum distillation
减压精馏
1.
Separation of benzoic acid waste by flash-vacuum distillation;
闪蒸-减压精馏分离苯甲酸废料
6)  reduced pressure distillation
减压精馏
1.
The tall oil from waste fluid in papermaking,first purified by reduced pressure distillation, then some composite additives were added.
使用造纸废液中塔尔油,经减压精馏纯化,适当加入复合添加剂,制得优质醇酸树脂,从而制备出性能较好的工业底漆。
补充资料:催化精馏
分子式:
CAS号:

性质:有催化剂催化反应和精馏一体化作用。它有两种含义:(1)在相对挥发度很接近但化学性质差异较大的混合液中加入第三种反应剂,使与某一组分发生反应,增大相对挥发度使易于分离;(2)催化反应过程与精馏过程结合,边精馏,边反应,反应与分离一体化,利用精馏过程把反应产物和原料分离,破坏化学反应的平衡关系,使反应继续进行。同时利用反应关系,破坏气液平衡,加快传质分离。若反应放热,还可用来气化物料,节约能耗。如甲醇与含丁烯的气体用阳离子交换树脂催化剂反应,选择性地与异丁烯合成甲基叔丁基醚(MTBE),与其他丁烯异构物分离。

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