SAPO-35 ZEOLITE AND SYNTHESIS METHOD THEREFOR

摘要

Provided in the present invention is a SAPO-35 zeolite. The anhydrous chemical composition of same is: mR1·nCh+·(SixAlyPz)O2, where R1 is an alkanolamine, Ch+ is a choline cation distributed in zeolite cages and pores, m is the number of moles of the alkanolamine per mole of (SixAlyPz)O2, n is the number of moles f the choline cation per mole of (SixAlyPz)O2, m = 0-0.03, n = 0.05-0.25, and x, y, and z respectively express the mole fractions of Si, Al, and P, respectively ranged as x = 0.01-0.30, y = 0.35-0.55, and z = 0.25-0.49, while x + y + z = 1. The synthesized SAPO-35 zeolite of the present invention can be used as a catalyst in an acid-catalyzed reaction, such as a methanol-to-olefin reaction. The present invention also relates to applications of the SAPO-35 zeolite in terms of adsorption and isolation of CH4, CO2, and N2.