Abstract:This work investigates the effect of NaZSM-5 zeolite's acid properties on the catalytic cracking of crude soybean to produce gasoline-like hydrocarbons. We modified both the acid concentration and the acid strength of the NaZSM-5(60) zeolite (where 60 denotes the SiO 2 /Al 2 O 3 molar ratio) either by varying the SiO 2 /Al 2 O 3 ratio (i.e., 30, and 90) or by exchanging the compensation cation (i.e., from Na + to H +). Given the ammonia temperature-programmed desorption and temperatureprogrammed oxidation test… Show more
“…Moreover, the acidic property of zeolite can be effectively regulated through altering the silicon/aluminum sources, incorporating certain heteroatoms during synthesis 25,26 or using a post-synthetic treatment method. 27–32 We demonstrated that more Al atoms are located in the straight or sinusoidal channel of ZSM-5 when using silica sol as the silicon source, whereas for the sample prepared with tetraethyl orthosilicate (TEOS), the acid sites prefer to be distributed in the interaction cavity. 33 The addition of boron (B) in the synthesis gel decreases both the amount and strength of strong Brønsted acid sites of RUB-13 zeolite, hence limiting the formation of coke species in CO 2 hydrogenation.…”
Alkane aromatization is a significant supplementary route for the preparation of value-added aromatic products. Although ZSM-5 zeolites have been widely used in alkanes aromatization, they always exhibit low catalytic stability,...
“…Moreover, the acidic property of zeolite can be effectively regulated through altering the silicon/aluminum sources, incorporating certain heteroatoms during synthesis 25,26 or using a post-synthetic treatment method. 27–32 We demonstrated that more Al atoms are located in the straight or sinusoidal channel of ZSM-5 when using silica sol as the silicon source, whereas for the sample prepared with tetraethyl orthosilicate (TEOS), the acid sites prefer to be distributed in the interaction cavity. 33 The addition of boron (B) in the synthesis gel decreases both the amount and strength of strong Brønsted acid sites of RUB-13 zeolite, hence limiting the formation of coke species in CO 2 hydrogenation.…”
Alkane aromatization is a significant supplementary route for the preparation of value-added aromatic products. Although ZSM-5 zeolites have been widely used in alkanes aromatization, they always exhibit low catalytic stability,...
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