Using hydrophobic nano-silicon dioxide, deionized water, ethylene glycol and calcium oxide as the raw material, dry glycol-water calcium oxide resembling confectioners' sugar was prepared by the high-speed mixing, and the effect of shape of weight percentage content on the shape of dry glycol-water calcium oxide was investigated. The effect of content of active constituents, volume of glycol-water, gas flow and service life of the catalyst on the COS hydrolysis transforming rate was investigated. Under the condition of room temperature, gas flow of 10 mL/min, dry glycol-water calcium oxide (the conditions of preparation: 1 g CaO, 40 mL deionized water, 40 mL ethylene glycol, 19 g hydrophobic nano-silicon dioxide, agitation time 10 s) of 2 g, COS hydrolysis transforming rate reached 90%, and service life of this catalyst was 3.25 hours.

Using hydrophobic nanosilicon dioxide, deionized water and basic compounds as the raw material, dry water and dry alkali catalysts such as white granulated sugar were prepared. The effect of mass ratio on form of dry water and alkaline dry alkali was investigated. The effect of the different dry base catalysts, content of active constituents, gas flow and service life of the catalyst on the COS hydrolysis transforming rate were investigated. The results showed that under the condition of room temperature, gas flow of 10 mL/min, dry calcium oxide(CaO(1 g)+deionized water(79 g)+hydrophobic nanosilicon dioxide(20 g) were the optimum catalyst active component ) of 2 g, COS hydrolysis transforming rate reached 90%, and the service life of the catalyst was 340 min.

Adsorption behavior of thiophene in NaY and CeY zeolites prepared by liquid phase ion exchange and solid state ion exchange methods by using the frequency response method, combined with the TG/DTG curves and PyFTIR technique to analyze the the adsorption and diffusion mechanism of thiophene on these zeolites. The results indicate that LCeY zeolites contain the strong B acid and weak L acid sites, while the SCeY zeolites contain the weak L acid and a small amount of weak B acid sites. Only one weak adsorption process of thiophene can be observed for the SCeY and NaY zeolites. Two different adsorption processes can be formed in LCeY zeolites, and the different interactions can be attributed to the different acid sites.