A facile solvent-free synthesis strategy for Co-imbedded zeolite-based Fischer-Tropsch catalysts for direct gasoline production

Mudassar Javed, Shilin Cheng, Guihua Zhang, Cederick Cyril Amoo, Jingyan Wang, Peng Lu, Chengxue Lu, Chuang Xing*, Jian Sun, Noritatsu Tsubaki

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

27 被引用数 (Scopus)

抄録

A series of Co-imbedded zeolite-based catalysts were synthesized following a facile solvent-free grinding route. The catalytic performance for direct syngas conversion to gasoline range hydrocarbons was compared with their counterpart Co-impregnated zeolite-based catalysts. Successful transformation of solid raw materials to targeted zeolite was confirmed by XRD, SEM, STEM, and N2 physisorption analysis. An in-depth study of acidic strength and acidic site distribution was conducted by NH3-TPD and Py-IR spectroscopy. Acidic strength showed a pivotal role in defining product range. Co@S1, with the weakest acidic strength of silicalite-1 among three types of zeolites, evaded over-cracking of product and exhibited the highest gasoline and isoparaffin selectivity (≈70% and 30.7%, respectively). Moreover, the solvent-free raw material grinding route for zeolite synthesis accompanies several advantages like the elimination of production of wastewater, high product yield within confined crystallization space, and elimination of safety concerns regarding high pressure due to the absence of the solvent. Facileness and easiness of the solvent-free synthesis route together with promising catalytic performance strongly support its application on the industrial scale.

本文言語英語
ページ(範囲)604-612
ページ数9
ジャーナルChinese Journal of Catalysis
41
4
DOI
出版ステータス出版済み - 2020/04

ASJC Scopus 主題領域

  • 触媒
  • 化学一般

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