| With the occurrence of the strict environment protection requirement, thiophene, a non-active sulfur compound, has become the research focus due to its difficulty in desulfurization and its high content in fuel. Adsorption desulfurization of thiophene has the character of selectivity, and has the advantages of low investment,mild condition and low operation cost. Based on the work of the references, the thiophene desulfurization process and condition research was undertaken in this work considering two aspects: static adsorption and dynamic adsorption.The isotherms of different adsorbents were obtained by the static adsorption experiments. The temperature ranges from 20℃ to 60℃, and the concentration ranges from 25×10-6 to 500×10-6. The result demonstrates that the adsorption process of both thiophene and dibenthiophene held on zeolite 13X could be expressed by the Langmuir equation and the Henry equation, while Langmuir equation is more suitable. The adsorption process held on Al2O3 is better described by the Henry equation. Given the relation between temperature and the parameter in the model, we could get the isotherm equation. Thus, the adsorption data in the range of temperatures and concentrations which had been studied could be calculated.The adsorbents' ability of desulfurization was evaluated by a kinetic experiment. The result shows that zeolite 13X has the best performance in adsorption. Under the same condition, three adsorbents show different adsorption ability which follow the rule: 13X>Al2O3>5A. And the desulfurization ratio are respectively 91.8%,24.3% and 6.70%. With the help of both simplified and empirical descriptions of Fick's law, the kinetic process could be described in the full range.The dynamic adsorption experiment of zeolite 13X was undertaken in a fix-bed separation evaluation unit. The research shows that per gram of the adsorbent could decrease the thiophene from 200×10-6 to 30×10-6 in the 25 mL solution. The saturated sulfur capacity of this adsorbent is 0.334 mmol/g(adsorbent). The experiment data was simulated by existing breakthrough curve analytic solutions,...
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