精馏塔英文简介

我需要一篇关于精馏塔的英文简介 几百字就好。。如果找不到可以考虑帮我翻译一下这篇精馏塔简介 万分感谢了精馏塔是进行精馏的一种塔式汽液接触装置，又称蒸馏塔。有板式塔和填料塔两种类型。根据操作方式又分为连续精馏塔与间歇精馏塔。蒸汽从塔底进入，与下降液进行逆流接触，两相接触中，下降液中的易挥发（低沸点）组分不断地向蒸汽中转移。蒸汽中的难挥发（高沸点）组分不断地向下降液中转移，蒸汽愈接近塔顶，其易挥发组分浓度愈高，而下降液愈接近塔底，其难挥发组分则愈富集，达到组分分离的目的。由塔顶上升的蒸汽进入冷凝器，冷凝的液体一部分作为回流液返回塔顶进入精馏塔中，其余的部分则作为馏出液取出。塔底流出的液体，其中的一部分送入再沸器，热蒸发后，蒸汽返回塔中，另一部分液体作为釜残液放出。

以下是翻译你写的精馏塔简介：Distillation is a distillation tower for vapor-liquid contact device, also known as distillation. A plate column and packed column types. According to mode of operation are divided into continuous distillation and batch distillation. Steam from the bottom of the column entry, and the decline in liquid countercurrent contact with the two in contact, the drop in the volatile liquid (low boiling point) components is continuously transferred to the steam. The difficulty of steam volatile (high boiling) component continued to decline in the transfer of liquid, steam the closer the top of the tower, the higher the concentration of its volatile components, while the decline in the closer tower bottom liquid, its hard to be more volatile components rich set, to achieve component separation. Steam rising from the top of the tower into the condenser, the liquid part of the condensate as reflux liquid to return into the distillation tower, the rest is removed as distillate. Tower bottom outflow of liquid, some of which into the reboiler, thermal evaporation, the steam back to tower, and the other part of the liquid as residua release.

精馏塔（fractionating columns） 有两层含义：实验室小型蒸馏装置常被称为精馏塔、工业上的大型精馏设备也常被称之为精馏塔，你指的是哪一种呢？

下面给出维基百科的地址，你自己看一看吧！

http://en.wikipedia.org/wiki/fractionating_column