Fe, Co and Fe/Co catalysts supported on SBA-15 for Fischer-Tropsch Synthesis

被引：22

作者：

Toncon-Leal, C. F. ^{[1
]}

Munera, J. F. ^{[2
]}

Arroyo-Gomez, J. J. ^{[1
]}

Sapag, K. ^{[1
]}

机构：

[1] Univ Nacl San Luis, Lab Solidos Porosos LabSoP, INFAP CONICET, Ave Ejercito Andes 950, RA-5700 San Luis, Argentina

[2] Univ Nacl Litoral, Inst Invest Catalisis & Petroquim, Santiago Estero 2829, RA-3000 Santa Fe, Argentina

来源：

CATALYSIS TODAY | 2022年 / 394卷

关键词：

Fe-Co/SBA-15; Supported catalysts; Bimetallic and monometallic particles; Fischer Tropsch Synthesis; MESOPOROUS SILICA; BIMETALLIC CO; PARTICLE-SIZE; LOWER OLEFINS; PORE-SIZE; COBALT; NANOPARTICLES; TEMPERATURE; HYDROCARBONS; MECHANISM;

D O I：

10.1016/j.cattod.2021.07.023

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Iron, cobalt, and bimetallic catalysts were synthesized from their cationic solutions and impregnated on mesoporous silica support (i.e., SBA-15) to study their behavior in the catalytic hydrogenation of CO (Fischer-Tropsch Synthesis). N-2 adsorption-desorption isotherms at 77 K showed that the mesoporous structure remained unchanged after the metal impregnation; however, the overall textural properties of impregnated materials decreased. SEM images did not show the presence of metal deposits on the support surface; however, both EDS and XRF analysis indicated the presence of iron and cobalt. Both XPS and TPR identified hematite and cobalt oxide as the main components in catalysts. In the Fischer-Tropsch Synthesis, the bimetallic catalysts presented higher activity than monometallic catalysts. The two bimetallic catalysts presented a decrease in methane selectivity and high production of gasoline and hydrocarbon chains larger than decane.

引用

页码：150 / 160

页数：11

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