Catalytic adsorptive desulfurization (CADS) recently received attention due to its integrated nature in reaching ultra-low sulfur content fuel. In this study, a mathematical model is used to simulate catalytic adsorptive behavior for a model fuel of toluene with 300 ppm di-benzothiophene over TiO₂/SBA-15 catalyst. The results showed that near 100% sulfur removal can be obtained for the model fuel and negligible heat is released in the reactor. Cyclic temperature swing adsorption is studied and after one cycle, the process reached to steady state condition. The effect of addition of methanol in regeneration of adsorbent is also investigated and the results showed that injection of methanol would add some benefits into the process of desulfurization in terms of late breakthrough happening and reduction in di-benzothiophene concentration in the bed. A comparison between catalytic adsorptive (CADS), oxidative-adsorption (OADS) and adsorption desulfurization (ADS) methods is also conducted and the results showed that the first process provides a higher adsorption capacity.

催化吸附脱硫（CADS）由于其在达到超低硫含量燃料方面的综合性质而最近受到关注。在这项研究中，使用数学模型来模拟具有300 ppm二苯并噻吩在TiO _2上的甲苯模型燃料的催化吸附行为。/ SBA-15催化剂。结果表明，对于模型燃料，脱硫率接近100％，并且在反应堆中释放的热量可忽略不计。研究了循环变温吸附，经过一个循环后，该过程达到稳态。还研究了添加甲醇对吸附剂再生的影响，结果表明，注入甲醇将为脱硫过程带来一些好处，包括后期突破和降低床中二苯并噻吩浓度。还对催化吸附（CADS），氧化吸附（OADS）和吸附脱硫（ADS）方法进行了比较，结果表明第一种方法具有更高的吸附能力。