目前，在我國生物天然氣領域應用較多的亚洲电影在线观看提純技術主要有水洗法、變壓吸附法和膜分離法。下麵為大家介紹水洗法技術的工作原理以及優勢。

At present, the most commonly used biogas purification technologies in China's natural gas industry include water washing, pressure swing adsorption, and membrane separation. Below, we will introduce the working principle and advantages of water washing technology.

　　水洗法的原理主要是利用二氧化碳和甲烷在水中溶解度不同和二氧化碳在水中的傳質，相同條件下二氧化碳在水中的溶解度是甲烷的30倍左右，通過物理吸收，實現二氧化碳和甲烷分離。在一定的溫度條件下，氣水比有一個值，當氣水比在達到值後繼續增大時，水洗效果開始降低。水洗時，亚洲电影在线观看從水洗塔的底部進入，通常會在水洗塔底部安裝氣體彌散裝置，將亚洲电影在线观看分散為大量的小氣泡，均勻分布在水中，以利於傳質，亚洲电影在线观看泡在上升的過程中，其中的二氧化碳和硫化氫等易溶於水的氣體溶解在水中。

The principle of water washing method mainly utilizes the different solubility of carbon dioxide and methane in water and the mass transfer of carbon dioxide in water. Under the same conditions, the solubility of carbon dioxide in water is about 30 times that of methane. Through physical absorption, the separation of carbon dioxide and methane is achieved. Under certain temperature conditions, there is an optimal value for the gas water ratio. When the gas water ratio continues to increase after reaching the optimal value, the washing effect begins to decrease. During water washing, biogas enters from the bottom of the washing tower. A gas dispersion device is usually installed at the bottom of the washing tower to disperse biogas into a large number of small bubbles, which are evenly distributed in the water to facilitate mass transfer. During the rising process of biogas bubbles, easily soluble gases such as carbon dioxide and hydrogen sulfide dissolve in the water.

　　水洗法優勢：

Advantages of water washing method:

　　1) 處理量大，工藝簡單，維護方便；

1) Large processing capacity, simple process, and convenient maintenance;

　　2) 效率較高，在的操作管理條件下通過單個洗滌塔就可以將甲烷濃度提純到95%左右，同時甲烷的損失率也可以控製在比較低的水平；

2) High efficiency, under the lowest operating management conditions, methane concentration can be purified to around 95% through a single washing tower, and the loss rate of methane can also be controlled at a relatively low level;

　　3) 由於采用水做吸收劑，所以這也是一種相對廉價的提純方法，尤其在不需要對水進行再生處理時，其經濟性更加顯著；

3) Due to the use of water as an absorbent, this is also a relatively inexpensive purification method, especially when water does not require regeneration treatment, its economic efficiency is more significant;

　　4) 在一定程度上可去除原料氣中的一些雜質氣體。故工藝上無需精脫硫，同時可采取耐腐蝕的塔體結構，如不鏽鋼，以保證設備使用壽命；

4) To some extent, it can remove some impurity gases from the feed gas. Therefore, there is no need for precise desulfurization in the process, and corrosion-resistant tower structures such as stainless steel can be adopted to ensure the service life of the equipment;

　　5) 不需要化學品。

5) No chemicals required.

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