Citation: LIU Zhi-Hua, YU Chang-Chun, YANG Pan, LI Ran-Jia, ZHOU Hong-Jun, XU Chun-Ming. Effect of Thorium on Fischer-Tropsch Synthesis Performance over Impregnated and Eggshell Co/SiO₂[J]. Acta Physico-Chimica Sinica, ;2015, 31(S1): 90-94. doi: 10.3866/PKU.WHXB2014Ac02 shu

Effect of Thorium on Fischer-Tropsch Synthesis Performance over Impregnated and Eggshell Co/SiO₂

1.
1 Institute of New Energy, China University of Petroleum (Beijing), Beijing 102249, P. R. China;
2.
2 Institute of Materials, China Academy of Engineering Physics, Mianyang 621700, Sichuan Province, P. R. China

Corresponding author: YU Chang-Chun,
Fund Project: 国家自然科学基金(21376263)资助项目 (21376263)

Modification of impregnated Co/SiO₂ (i-Co/SiO₂) and eggshell Co/SiO₂ (e-Co/SiO₂) through addition of thorium (Th) was obtained by impregnation and spray coating processes, respectively. The effects of thorium on the structure, reduction behavior, and catalytic performance were characterized by X-ray diffraction (XRD), H₂ temperature-programmed reduction (H₂-TPR), and CO+H₂ reaction. We found that the addition of Th in both impregnation and eggshell catalysts could improve selectivity towards heavy hydrocarbons (C₅₊) and suppress the formation of methane and light hydrocarbons. In impregnated Co/SiO₂ catalysts, the presence of Th could promote dispersion of the active phase to enhance catalytic activity. However, when Th is added to eggshell Co/SiO₂ catalysts, it may cover part of the active phase, leading to activity decline.
- Thorium,
- Cobalt based catalyst,
- Impregnated catalyst,
- Eggshell catalyst,
- Fisher-Tropsch synthesis
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Effect of Thorium on Fischer-Tropsch Synthesis Performance over Impregnated and Eggshell Co/SiO2

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通讯作者: 陈斌, bchen63@163.com

Effect of Thorium on Fischer-Tropsch Synthesis Performance over Impregnated and Eggshell Co/SiO₂