…Ceramics and polymeric materials are used for the packing materials because of their corrosion resistance, but metals are most commonly used because of their strength. Well-known irregular packing materials include the Raschig ring, Berl saddle, and Pall ring shown in the figure, but recently regular packing materials made of wire mesh have also been used. Inside the packed tower, the liquid flows down along the surface of the packing materials, and the gas rises through the gaps between the packing materials, resulting in gas-liquid contact. … *Some of the terminology that mentions "Raschig ring" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…充てん物の材質としては,耐食性を考えた陶磁器類や高分子物質なども使われているが,強度の面から金属が最も多く使われている。有名なものは図に示すラシヒリングRaschig ring,ベルルサドルBerl saddle,ポールリングPall ringなどの不規則充てん物であるが,最近では金網などで作った規則充てん物も使われている。 充てん塔の内部では,液は充てん物の表面に沿って流下し,ガスは充てん物間の隙間を上昇して気‐液接触が行われる。… ※「Raschig ring」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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