OSDA-free synthesis of FeZSM-22 zeolite from natural minerals for n-octane hydroisomerization - Details

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Abstract：

A　seed-directed　approach　to　synthesizing　FeZSM-22　zeolite　without　organic　structure　directing　agent　(OSDA)　was　developed　by　using　Fe-rich　diatomite　as　all　aluminum　and　iron　sources.　The　FeZSM-22　zeolite　with　optimal　crystallinity　and　purity　can　be　obtained　by　systematically　adjusting　feed　composition　and　synthesis　conditions.　Characterizations　show　that　FeZSM-22　zeolite　synthesized　with　OSDA-free　owns　high　crystallinity,　obvious　thin　needle-shaped　morphology　and　high　Bronsted/Lewis　acid　ratio.　Significantly,　when　used　for　n-octane　hydroisomerization　reaction,　its　derived　catalyst　exhibits　the　best　catalytic　performance　reflected　by　the　highest　selectivity　to　C8　isomers　compared　to　the　two　reference　catalysts　prepared　based　on　a　Fe-containing　and　a　Fe-free　ZSM-22　synthesized　through　an　OSDA-directed　route　from　natural　diatomite　and　conventional　chemicals,　respectively.　This　work　provides　an　alternative　route　to　sustainably　synthesizing　heteroatomic　zeolites　with　high　performance.　©　2023　The　Chemical　Industry　and　Engineering　Society　of　China,　and　Chemical　Industry　Press　Co.,　Ltd

Keyword：

Catalyst selectivity Crystallinity Isomerization Isomers Zeolites

Community：

[ 1 ] [Li, Tiesen]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou; 350002, China
[ 2 ] [Li, Tiesen]Qingyuan Innovation Laboratory, Quanzhou; 362801, China
[ 3 ] [Chen, Ting]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou; 350002, China
[ 4 ] [Ye, Yinghui]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou; 350002, China
[ 5 ] [Dong, Peng]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou; 350002, China
[ 6 ] [Wang, Tinghai]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou; 350002, China
[ 7 ] [Wang, Tinghai]Qingyuan Innovation Laboratory, Quanzhou; 362801, China
[ 8 ] [Cui, Qingyan]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou; 350002, China
[ 9 ] [Cui, Qingyan]Qingyuan Innovation Laboratory, Quanzhou; 362801, China
[ 10 ] [Wang, Chan]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou; 350002, China
[ 11 ] [Yue, Yuanyuan]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou; 350002, China
[ 12 ] [Yue, Yuanyuan]Qingyuan Innovation Laboratory, Quanzhou; 362801, China

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Source ：

Chinese Journal of Chemical Engineering

ISSN： 1004-9541

Year： 2024

Volume： 66

Page： 51-59

3 . 7 0 0

JCR@2023

CAS Journal Grade：3

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 1

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