急！急！急！要急用 麻烦快点翻译成语法正确的英语好吗（要语法正确）谢谢

来源：百度知道 编辑：UC知道 时间：2024/09/21 12:32:29
氯乙烯精馏，利用氯乙烯物料中各组分挥发能力的差异，通过液相和气相的回流，使气、液两相逆向多级接触，在热能驱动和相平衡关系的约束下，使得易挥发组分（轻组分，如乙炔等）不断从液相往气相中转移，而难挥发组分（重组分，如1，2-二氯乙烷等）却由气相向液相中迁移，使混合物得到不断分离，从而，制得纯度为99.99%，含乙炔〈5PPM，高沸物〈50PPM的氯乙烯单体，供聚合使用。该过程中，传热、传质过程同时进行，属传质过程控制。而在该过程控制中，会遇到一个个棘手的问题，能否有效解决好VCM精馏问题，对于VCM精制产品质量则显得尤为重要，结合我厂氯乙烯生产的工艺特点和实际情况，对VCM精馏常见问题作一浅析。

Distillation of vinyl chloride, vinyl chloride material the use of volatile components in the difference between the ability, through the recycling of liquid and gas to gas, liquid two-phase multi-level exposure to reverse, in the heat-driven and the constraints of phase equilibrium relations, making easy volatile component (light component, such as acetylene, etc.) from liquid to gas phase transfer of volatile components difficult (Reorganization points, such as 1,2 - dichloroethane, etc.) from gas to liquid phase migration, so that a mixture of continuous separation, thus, obtained a purity of 99.99%, with acetylene <5PPM, high boiling materials <50PPM of vinyl chloride monomer for the polymer used. The process of heat transfer, mass transfer process at the same time, a mass transfer process control. And in the process control, will face a difficult problem, is effective in resolving the issue of VCM distillation, the quality of refined products for the VCM is especially imp