Rice husk assisted like-dry-gel synthesis of FeSAPO-44 molecular sieve from natural bauxite

被引：4

作者：

Zhang, Qiong-dan ^{[1
]}

You, Wei-long ^{[2
]}

Ma, Yong-de ^{[2
]}

Wang, Shi-ming ^{[1
]}

机构：

[1] Fujian Normal Univ, Coll Chem & Mat Sci, Fuzhou 350002, Peoples R China

[2] Fuzhou Univ, Natl Engn Res Ctr Chem Fertilizer Catalyst NERC C, Fuzhou 350007, Fujian, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2020年 / 291卷

关键词：

FeSAPO-44 molecular sieve; Bauxite; Rice husk; Like-dry-gel synthesis; Heavy oil hydrocracking; SELECTIVE CATALYTIC-REDUCTION; SLURRY-PHASE HYDROCRACKING; IRON SITES; FE; DEHYDRATION; SILICA; OXIDE; CONVERSION; ZEOLITES; FRUCTOSE;

D O I：

10.1016/j.jssc.2020.121662

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

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.

引用

页数：6