Liquid Phase Adsorption Properties of Organo Surfur Compounds on Cation Exchanged Natural Zeolites

陽이온 交換한 天然 제올라이트에 依한 有機黃化合物의 液相吸着 特性

  • Kim, Jong-Taik (Department of Industrial Chemistry, Kyungpook National University) ;
  • Heo, Nam-Ho (Department of Industrial Chemistry, Kyungpook National University)
  • 김종택 (慶北大學校 工科大學 工業化學科) ;
  • 허남호 (慶北大學校 工科大學 工業化學科)
  • Published : 1984.06.20


The adsorption properties of organo sulfur compounds on cation exchanged natural zeolites from n-heptane were investigated. The equilibrium adsorbed amounts were dependent upon the exchanged cation and the nature of organo sulfur compounds such as length, volume, electronical structure. The increasing orders of equilibrium adsorbed amounts were thiophene derivatives, disulfide, sulfide mercaptane and thiophene, benzothiaphene, dibenzothiophene. And $Co^{+2}$-zeolite was the most prominent adsorbant. Rate determining step of the adsorption at initial stage was intraparticle diffusion into the transitional pores of zeolite. These adsorption rates were dependent upon the bulkiness of adsorbate. Finally, preadsorbed water didn't affect these adsorption until the cation exchanged natural zeolite contained 2.26${\times}10^{-3}$ mol/g of water. It indicated that water preferentially occupied the micro pores of the cation exchanged natural zeolites.



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