Separation of Hydrogen Sulfide from Butane Gas Mixture by Zeolite ۱۳X

The Zeolitic adsorbent is successfully synthesized by natural Iranian kaolin to the separation of hydrogen sulfide from a gas mixture. In this work, zeolite ۱۳X from modified natural Iranian kaolin at ۶۵ °C for ۷۲ h at various concentrations of caustic soda solution was synthesized using a metakaolinization process at ۹۰۰ °C for ۲h. By Taguchi’s experimental design, the best duration and temperature of crystallization were ۷۲ h and ۶۵ °C. Prepared zeolite ۱۳X was characterized using X-Ray Diffraction (XRD), Fourier Transforms InfraRed (FT-IR) spectroscopy, Scanning Electron Microscopy (SEM), and N۲ adsorption-desorption methods. In addition, the adsorption capacity of zeolite ۱۳X for ۳۱۰ ppm of hydrogen sulfide mixed with hydrocarbon gas-like butane was investigated using a volumetric method by two different detectors and different temperatures. After the adsorption process, the amount of H۲S in output gas was about ۱۰۸ ppm and this confirms approximately more than ۶۵% adsorption at ۲۵ bar and ۲۹۸K. The results are is in good agreement with experimental results.

کلیدواژه ها:

Butane ، Hydrogen Sulfide ، hydrothermal synthesis ، Zeolite ۱۳X