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SAPO-11 Molecular Sieve, Preparation Method thereof, and Use thereof in Hydrocarbon Isomerization
SAPO-11 Molecular Sieve, Preparation Method thereof, and Use thereof in Hydrocarbon Isomerization
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机译:SAPO-11分子筛及其制备方法及其在烃异构化中的应用
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摘要
A SAPO-11 molecular sieve, preparation method thereof and use thereof in the isomerization of hydrocarbons is disclosed. The preparation method includes dissolving an aluminum source in ethylene glycol, and stirring to give a solution A; adding a structure-directing agent and a phosphorus source to the solution A, and stirring to give a solution B; adding a silicon source to the solution B, and stirring to give a solution C; transferring the solution C to a supercritical CO2 reactor, and introducing CO2 into the reactor to increase the pressure in the reactor; heating the supercritical CO2 reactor to the reaction temperature for crystallization; and after crystallization, lowering the temperature of the supercritical CO2 reactor, removing the solution from the reactor, separating the product, drying and calcining to obtain the SAPO-11 molecular sieve. A hydrocarbon isomerization catalyst can be obtained by molding the molecular sieve, loading a metal component, drying and calcining.
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