杂原子HMS介孔分子筛的催化脱氢和加氢脱硫性能

ＭＣＭ４１［１］和ＨＭＳ［２］等介孔分子筛对大分子的扩散阻力较小且具有良好的热稳定性，特别是在合成中可以直接将各种杂原子引入骨架，从而调变其催化性能，因此目前介孔分子筛在催化中的应用引起了各国研究者的广泛兴趣．Ｔｉ，Ｚｒ，Ｖ，Ｃｒ，Ｍｎ，Ｃｕ和Ｆｅ...

DEHYDROGENATION AND HYDRODESULFURIZATION ACTIVITY OF HETEROATOM-CONTAINING HMS MESOPOROUS MOLECULAR SIEVE CATALYSTS

Fe, Ni and Crcontaining HMS mesoporous molecular sieves were directly synthesized by a liquidcrystal templating method. The Si/Me molar ratio of the assynthesized samples is close to that of the reactant gel mixture. Almost all of the heteroatomcontaining HMS samples retain high BET surface area in the range of 620882 m2/g and pore volume of above 0.60 cm3/g. Fe, Ni and Crcontaining HMS mesoporous molecular sieve catalysts show higher catalytic activity for ethylbezene dehydrogenation than bulk Fe2O3. NiHMS catalysts are more active for thiophene hydrodesulfurization than other molecular sievesupported Ni catalysts. CrHMS and HMSsupported Cr catalysts are highly active for thiophene hydrodesulfurization, and the activity of the latter for the reaction is 2545 times greater than that of NiHMS catalysts.