炼油厂 含硫污水 汽提塔 流程

炼油厂含硫污水汽提塔流程英文回答：
The process of removing sulfur from wastewater in a refinery involves the use of a desulfurization unit known as a stripping tower or a stripping column. This tower is commonly referred to as a "gas stripping tower" or "stripper". The main purpose of the stripper is to separate the sulfur compounds from the wastewater through a process called gas stripping.
In the gas stripping process, the wastewater is fed
into the bottom of the stripping tower, while a stream of hot gas, usually steam, is introduced at the top of the tower. As the wastewater flows upwards through the tower, the hot gas comes into contact with the liquid and helps to vaporize the sulfur compounds present in the wastewater.
The vaporized sulfur compounds, along with other volatile components, rise to the top of the tower and are
collected. The remaining liquid, which is now significantly reduced in sulfur content, exits the bottom of the tower. The collected vapor is then condensed to recover the sulfur, which can be further processed or disposed of in an appropriate manner.
The gas stripping process is effective in removing
sulfur from wastewater because the sulfur compounds have a higher affinity for the gas phase than the liquid phase. By introducing a hot gas stream, the equilibrium between the liquid and gas phases is shifted, favoring the transfer of sulfur compounds from the liquid phase to the gas phase.
Gas stripping towers are designed to optimize the contact between the hot gas and the wastewater. They are typically equipped with trays or packing materials that increase the surface area available for mass transfer. Additionally, the temperature and pressure conditions
within the tower can be controlled to enhance the
efficiency of the stripping process.
Overall, the gas stripping process in a refinery's
wastewater treatment system plays a crucial role in
reducing the sulfur content of the wastewater. This helps
to meet environmental regulations and ensures that the discharged water is safe for the environment.
中文回答：
炼油厂中除去含硫污水的过程涉及到使用一种称为汽提塔的脱
硫装置。

汽提塔是一种常用的脱硫设备。

汽提塔的主要目的是通过
汽提工艺将硫化物从污水中分离出来。

在汽提工艺中，污水从汽提塔的底部进料，同时在塔顶部引入
一股热气体，通常是蒸汽。

当污水通过塔体向上流动时，热气体与
液体接触，帮助蒸发污水中的硫化物。

蒸发的硫化物和其他挥发性成分上升到塔顶，并被收集。

剩余
的液体，硫含量显著降低，从塔底排出。

收集的蒸汽随后被冷凝以
回收硫，可以进一步处理或适当处理。

汽提工艺能够有效地从污水中除去硫，因为硫化物对气相的亲
和力高于液相。

通过引入热气体流，液相和气相之间的平衡被改变，有利于硫化物从液相向气相的转移。

汽提塔的设计旨在优化热气体与污水之间的接触。

它们通常配备有塔板或填料材料，增加了可用于传质的表面积。

此外，可以控制塔内的温度和压力条件，以提高汽提过程的效率。

总的来说，在炼油厂的污水处理系统中，汽提工艺在降低污水中的硫含量方面起着关键作用。

这有助于满足环境法规，并确保排放水对环境安全无害。