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    天然氣脫硫設備工藝中的幹法脫硫？

    幹法脫硫是將原料氣以一定的空速通過裝有固體脫硫劑的固體床，經過氣-固接觸交換，將氣相中的H2S吸附到脫硫劑上，以使天然氣脫硫設備達到淨化的目的。下麵跟生物脫硫的小編一起了解下吧！

    Dry desulfurization is that the feed gas passes through the solid bed with solid Desulfurizer at a certain space speed, and then adsorbs the H2S in the gas phase to the desulfurizer through gas-solid contact exchange, so as to achieve the purification purpose of natural gas desulfurization equipment.
    1、鐵法
    1. Iron method
    鐵法是一個比較古老的脫硫方法，在脫硫過程中H2S與氫氧化鐵反應，當脫硫劑呈堿性時，脫硫反應按上麵初個反應式進行，當脫硫劑呈中性或酸性時，脫硫反應則按第2個反應式進行。脫硫劑再生反應速度比脫硫速度慢，是整個過程的控製步驟。
    Iron process is an old desulfurization method. In the desulfurization process, H2S reacts with iron hydroxide. When the desulfurizer is alkaline, the desulfurization reaction is carried out according to the first reaction formula above. When the desulfurizer is neutral or acidic, the desulfurization reaction is carried out according to the second reaction formula. The regeneration reaction speed of desulfurizer is slower than that of desulfurization, which is the control step of the whole process.
    2、氧化鐵法
    2. Iron oxide process
    此法脫H2S所用氧化鐵即人們熟知的海綿鐵，是一種古老而有名的氣體脫硫方法，迄今仍在許多特定用途的領域中廣泛應用。用於天然氣脫硫設備氣體脫硫的氧化鐵隻有α-Fe203·H2O和γ-Fe203·H20，它們都易於與H2S反應。重要的是生成的硫化鐵容易再氧化成活化形式的氧化鐵。
    Iron oxide, known as sponge iron, is an old and famous gas desulfurization method, which is still widely used in many specific fields. Only α - Fe203 · H2O and γ - Fe203 · H20 are used for gas desulfurization of natural gas desulfurization equipment, which are easy to react with H2S. It is important that the resulting iron sulfide is easily re oxidized to the activated form of iron oxide.
               生物脫硫
    3、NCA固體吸收法
    3. NCA solid absorption method
    該法是Dow化學公司提出的用於脫除H2S的方法。NCA固體含80%NaOH和20%Ca(OH)2(均指質量百分比)。該法在脫除H2S的同時，亦可除去氣體中可能存在的高含量低分子量硫醇。NCA固體法是非再生性的，因而與所脫除的H2S相比，其化學品耗量相當高。反應後的固體周期性地用水從塔底衝洗出來。
    This method is proposed by Dow Chemical Company to remove H2S. NCA solid contains 80% NaOH and 20% Ca (OH) 2 (both refer to mass percentage). This method can also remove high content and low molecular weight mercaptans in the gas while removing H2S. The NCA solid process is non regenerative, so its chemical consumption is quite high compared with the H2S removed. The solid after reaction is washed out periodically with water from the bottom of the tower.
    4、氧化鋅法
    4. Zinc oxide process
    氧化鋅法是用於氣體細化脫硫的方法之一，由於在天然氣脫硫設備中使用氧化鋅脫硫劑後一般不再利用即廢棄，因此此法隻適於脫除少量硫，脫硫劑的用量應保障量使用一年以上。當原料氣中含硫量高時，應與濕法脫硫或其它幹法脫硫配合使用。
    Zinc oxide method is one of the methods used for refined desulfurization of gas. Since zinc oxide desulfurizer is generally no longer used or abandoned after being used in natural gas desulfurization equipment, this method is only suitable for removing a small amount of sulfur, and the amount of desulfurizer should be guaranteed to be used for more than one year. When the sulfur content of feed gas is high, it should be used together with wet desulfurization or other dry desulfurization.
    以上是關於天然氣脫硫設備工藝中的幹法脫硫的相關內容介紹，相信大家都了解了，如想要了解更多內容歡迎點擊生物脫硫http://www.oagood.com官網。
    The above is about the natural gas desulfurization equipment process dry desulfurization related content introduction, I believe you all understand, if you want to know more content, welcome to click biological desulfurization http://www.oagood.com Official website.

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