Abstract
In this study, a series of FeSAPO-44 molecular sieves are synthesized by a facile like-dry-gel method. The untreated bauxite is used as the source of Al, Si, while Fe element is retained as the acid site. Rice husks are provided for auxiliary Si source together with Si-sol to balance Al/Si ratio, and its cellulose plays a role in favoring Fe of bauxite into the framework of molecular sieves. The referred sample derived from pseudo-boehmite confirms rice husk facilitates Fe enter the skeleton. The referred sample synthesized from ethyl cellulose further affirmed the function of cellulose. The crystal structure, surface area, pore diameter, surface properties and acidity of samples are systematically characterized. Furthermore, the obtained FeSAPO-44 molecular sieve from natural source of bauxite and rice husk is used as a carrier to support Mo for the hydrocracking of Karamay super heavy oil, which shows a feasible practical application.
Published Version
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