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Low-cost synthesis of nano-stacked SAPO-34 molecular sieve and its application in furfuryl alcohol catalyzed alcoholysis

The microporous structure of SAPO-34 molecular sieve affects the diffusion of macromolecular substances in the catalytic reaction system, resulting in rapid deactivation and shortened life. Generally, reducing the particle size of SAPO-34 or introducing secondary pores to increase the external specific surface area and pore diameter of SAPO-34 can effectively improve the stability of the catalytic performance of SAPO-34. However, the smaller size of SAPO-34 is difficult to recycle; the introduction of secondary pores through organosilanes etc. greatly increases the synthesis cost of SAPO-34.