TY - JOUR
T1 - A facile solvent-free synthesis strategy for Co-imbedded zeolite-based Fischer-Tropsch catalysts for direct gasoline production
AU - Javed, Mudassar
AU - Cheng, Shilin
AU - Zhang, Guihua
AU - Amoo, Cederick Cyril
AU - Wang, Jingyan
AU - Lu, Peng
AU - Lu, Chengxue
AU - Xing, Chuang
AU - Sun, Jian
AU - Tsubaki, Noritatsu
N1 - Publisher Copyright:
© 2020 Dalian Institute of Chemical Physics, the Chinese Academy of Sciences
PY - 2020/4
Y1 - 2020/4
N2 - 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.
AB - 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.
KW - Co-imbedded zeolite catalyst
KW - Fischer-Tropsch synthesis
KW - Gasoline
KW - Isoparaffin
KW - Solvent-free synthesis
UR - http://www.scopus.com/inward/record.url?scp=85078079176&partnerID=8YFLogxK
U2 - 10.1016/S1872-2067(19)63436-4
DO - 10.1016/S1872-2067(19)63436-4
M3 - 学術論文
AN - SCOPUS:85078079176
SN - 1872-2067
VL - 41
SP - 604
EP - 612
JO - Chinese Journal of Catalysis
JF - Chinese Journal of Catalysis
IS - 4
ER -