The hierarchical SAPO-34 zeolites have been prepared with the simultaneous generation of strong Brønsted acid sites (BASs) via a post-synthetic method, which allows the cooperation of the positive effects of both porous structure and acidity in the dehydration of glycerol to acrolein. The cooperation of strong BASs only in enhancing the acrolein selectivity and the hierarchical pores in improving the glycerol conversion has significantly increased the overall acrolein yield to 89.8% on the hierarchical SAPO-34 zeolite at 345 °C and WHSV = 3.7 h⁻¹. This kind of cooperation also limited the catalyst deactivation and prolonged the lifetime of zeolites, which is another significant challenge for glycerol dehydration. The knowledge from this research is very valuable to design the high-efficient nanoporous catalysts for hydrocarbon conversion and bio-refining.

分级制备的SAPO-34沸石是通过后合成方法同时生成强布朗斯台德酸位点（BAS）的方法制备的，该方法可在甘油脱水生成丙烯醛的过程中协同发挥多孔结构和酸度的积极作用。强效BAS仅在增强丙烯醛选择性方面发挥作用，而在改善甘油转化中通过分层孔隙进行合作，则在345°C和WHSV = 3.7 h ^-1的条件下，分层SAPO-34沸石的总丙烯醛产率显着提高至89.8％。。这种合作也限制了催化剂的失活并延长了沸石的寿命，这是甘油脱水的另一个重大挑战。这项研究的知识对于设计用于烃转化和生物精制的高效纳米多孔催化剂非常有价值。