2022
DOI: 10.1021/acsomega.2c00446
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Abstract: Activity, selectivity, and deactivation behavior of catalyst materials determine their efficiency in hydrocarbon conversion processes. For hydrocarbon cracking, the industrial catalyst is an important parameter in reaction technology to produce valuable compounds, e.g. , light olefins (C 3 –C 5 ) and gasoline from crude oil fractions with high molecular weight (C 16+ ). One strategy to enhance the catalytic activity for… Show more

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Cited by 1 publication
(2 citation statements)
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References 45 publications
(93 reference statements)
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“…Although the acidity of a pure alumina binder from AlCl 3 is slightly higher than that of a pure silica binder as determined by ammonia desorption experiments, its correlation to acidity properties is weak. More importantly, the silica (LUDOX) used tends to form outer particle shells after spray drying, covering active and shape-selective ZSM-5, which confirms our previous studies . The investigations demonstrate that only small amounts of alumina in the mainly silica-based binder prevent the grain from shelling and ensure the access of hydrocarbon molecules to the active surface.…”
Section: Discussionsupporting
confidence: 87%
See 1 more Smart Citation
“…Although the acidity of a pure alumina binder from AlCl 3 is slightly higher than that of a pure silica binder as determined by ammonia desorption experiments, its correlation to acidity properties is weak. More importantly, the silica (LUDOX) used tends to form outer particle shells after spray drying, covering active and shape-selective ZSM-5, which confirms our previous studies . The investigations demonstrate that only small amounts of alumina in the mainly silica-based binder prevent the grain from shelling and ensure the access of hydrocarbon molecules to the active surface.…”
Section: Discussionsupporting
confidence: 87%
“…More importantly, the silica (LUDOX) used tends to form outer particle shells after spray drying, covering active and shape-selective ZSM-5, which confirms our previous studies. 28 The investigations demonstrate that only small amounts of alumina in the mainly silica-based binder prevent the grain from shelling and ensure the access of hydrocarbon molecules to the active surface. The resulting good olefin yield in catalytic tests is due to an optimization between the suppression of excessive subsequent conversion steps after propylene formation from hexanes while still maintaining good accessibility of active sites and, thus, good activity.…”
Section: Discussionmentioning
confidence: 96%