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      乙醇脫水分子篩 Molecular Sieve for Ethanol Dehydration

      瀏覽次數:次      更新時間:2021-01-20 11:51:18

      分子篩作為氣體和液體的有效吸收劑。具有獨特結構的活性分子篩有助于多種系統在很大程度上去除不需要的氣體或液體雜質。它還可以分子大小的形式將氣體或液體分開。分子篩在95.6%體積的乙醇高于共沸點的蒸餾過程中起重要作用。目前,在合成分子篩的有效幫助下,采用先進的技術可以實現乙醇的脫水,使其超越這一共沸點。
      在工業和食品應用中,分子篩脫水工藝要求較高的純度。3A型分子篩被認為是最有效的干乙醇類型。在乙醇脫水過程中,水化的乙醇蒸氣通過分子篩床。當蒸汽通過篩床時,在第一步中,水被吸附劑結構的孔吸附。吸附過程持續進行,直至從這些蒸汽中可能的水吸附完成或分子篩飽和為止。
      將水從水合乙醇蒸汽轉移至活性分子篩的過程是通過一個區域或一個區域進行的,在該區域中,水含量的降低從其入口輸送至出口濃度。該主輸送區提供一個用于輸送脫水的活性床,而另一個用于再生的床。從一張床到另一張床的移動是通過強大的閥門和自動化來處理和控制的。分子篩脫水后的純乙醇可作為汽車燃料及其他有用用途。

      Molecular sieve acts as an effective absorbent for gases and liquids. Activating molecular sieves with a unique structure helps several systems to remove unwanted gas or liquid impurities to a great extent. It can also split the gases or liquids in the form of molecular size. Molecular sieve plays a great role in the distillation of ethanol above the azeotropic point at 95.6% volume. Now, ethanol dehydration process can be carried out with the advanced technology beyond this azeotropic point with the help of synthetic molecular sieves effectively.
      Molecular sieve Dehydration Process requires a high level of purity in the range of industrial and food applications. Type 3A molecular sieves are considered as the most effective type to dry ethanol. In the ethanol dehydration process, the hydrated ethanol vapors are passed through the molecular sieve bed. As the vapors pass the sieve bed, in the very first step water gets adsorbed by the pores of the adsorbent structure. The process of adsorption continues until the possible water adsorption from these vapors gets completed or molecular sieve gets saturated.

      The process of transferring the water from hydrated ethanol vapors to the activated molecular sieve occurs through an area or a zone where the reduction of water content carries from its inlet to outlet concentration. This master transfer zone provides one active bed for transporting the dehydration while another bed for regeneration. The movement from one bed to another is handled and controlled using the powerful valves and automation. The pure ethanol after the dehydration process using molecular sieves can be used as a fuel in automobiles and other useful applications.

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