期刊
MICROPOROUS AND MESOPOROUS MATERIALS
卷 346, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.micromeso.2022.112294
关键词
Isomerization; Pt-La; Beta; Jet fuel; N-dodecane; Pt dispersion
类别
资金
- National Research Foundation of Korea (NRF) - Korea government (MSIT)
- [NRF2020M1A2A2079802]
The effects of La addition on Pt-La/B38 catalysts for low-temperature isomerization of n-dodecane were investigated. La co-impregnation with Pt reduced the Pt size and improved the uniformity. The reasonable arrangement of active sites caused by La loading resulted in higher iso-C12 yield.
A series of Pt-La/B38 catalysts were prepared for low-temperature isomerization of n-dodecane and the effects of La addition on the textural properties, metal dispersion, acid properties, and catalytic performance were investigated. La co-impregnated with Pt on B38 significantly reduced the Pt size and notably enhanced the uniformity in Pt size. A higher ratio of accessible Pt and medium-strength Bronsted acid sites and a shorter distance between two Pt particles of Pt-La10/B38 resulted in the maximum iso-C12 yield (59.2-56.2%) in the range of 200-250 degrees C, due to the reasonable arrangement of active sites caused by La loading.
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