Flash pyrolysis of oil shale assisted by Zr-doped TiOSO4 nanocomposites: Excellent selectivity for hydrocarbons and toluene
Flash pyrolysis of oil shale assisted by Zr-doped TiOSO4 nanocomposites: Excellent selectivity for hydrocarbons and toluene
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Zr掺杂TiOSO4纳米复合材料辅助油页岩闪热解：对碳氢化合物和甲苯具有优异的选择性
DOI：
10.1016/j.fuel.2022.126113
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发表时间：
2023-01
期刊：
影响因子：
7.4
通讯作者：
Minghua Liu
中科院分区：
文献类型：
--
作者：
Guojing Xu;Peng Li;Penglei Chen;Lijie Cui;Zhenpeng Wang;Zhaoyang Ren;Xujin Qin;Nannan Wang;Minghua Liu
Oil shale (OS) is among the most promising alternatives to replace/complement the conventional fossil fuels of limited reserves. The manufacture of qualified petroleum-like fuels and/or value-added chemicals by a catalytic OS pyrolysis with low energy consumptions has drawn broad attention from numerous scientific and engineering communities. While the past decades have witnessed great advancements in this regard, it is still strongly desired to inaugurate new catalysts for efficient OS utilizations, since most of the currently existing catalysts either suffer from tedious pretreatments on OS, complicated fabrication, high costs, easy deactivation by pore blockage, time-consuming impregnation, or unsatisfied selectivityetc.Herein, we report that Zr-doped TiOSO4nanocomposites could be facilely synthesizedviaa simple wet-chemical-calcination method. It is found that the as-fabricated nanohybrids could induce ∼10% decrements in the activation energy of OS pyrolysis, and the quality of the pyrolyzates could be greatly enhanced, where the content of heteroatomic compounds decreases fromca.38.3% to 17.1% (55.4% reduction), that of the medium/long-chain aliphatic hydrocarbons decreases fromca.27.7% to 17.8% (35.7% decrease), while that of hydrocarbons and short-chain aliphatic hydrocarbons increases fromca.61.7% to 82.9% (34.4% increase) and fromca.19.6% to 46.3% (136.2% enhancement), respectively. More significantly, our catalyst could also induce an evident increase in the content of monoaromatic hydrocarbons, especially toluene (466.7% enriched, substantially), which is an important value-added platform chemical of broad interests, and a distinct decrease in the content of polyaromatic coke precursors (36.4% reduction), which are among the most frequently encountered undesired species during OS pyrolysis. It is proposed that the synergistic yet competitive effects of Brønsted and Lewis acid sites play important roles in the excellent catalytic performances of our nanocatalyst. Considering the strategic significance of OS and the easy availability of zirconium/titanium-based nanohybrids, our nanocatalyst with excellent heteroatom removal, anti-coke and cracking capabilities, and high selectivity for hydrocarbons, short-chain aliphatic and monoaromatic hydrocarbons (especially toluene), likely initiates new opportunities for OS pyrolysis, which is a subject of broad interest and general concern.
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影响因子：
9.9
作者：
Peng Yao;Hongli Liu;Dong-Ting Wang;Jiangyao Chen;Guiying Li;T. An
通讯作者：
Peng Yao;Hongli Liu;Dong-Ting Wang;Jiangyao Chen;Guiying Li;T. An
影响因子：
12.1
作者：
L. Wu;C. Zhou;J. Keeling;D. Tong;W. Yu
通讯作者：
L. Wu;C. Zhou;J. Keeling;D. Tong;W. Yu
影响因子：
5.1
作者：
Ai Shiono;A. Hosaka;C. Watanabe;N. Teramae;N. Nemoto;H. Ohtani
通讯作者：
Ai Shiono;A. Hosaka;C. Watanabe;N. Teramae;N. Nemoto;H. Ohtani
影响因子：
8.7
作者：
S. Vichaphund;D. Aht-Ong;V. Sricharoenchaikul;D. Atong
通讯作者：
S. Vichaphund;D. Aht-Ong;V. Sricharoenchaikul;D. Atong
影响因子：
10.4
作者：
Dai, Minquan;Yu, Zhaosheng;Ma, Xiaoqian
通讯作者：
Ma, Xiaoqian