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Volume 6
Research & Reviews: Journal of Material Sciences
Advanced Materials 2018
September 19-21, 2018
September 19-21, 2018 Tokyo, Japan
22
nd
International Conference on
Advanced Materials and Nanotechnology
Nouria Fatah et al.. Juruena, Res. Rev. J Mat. Sci. 2018, Volume 6
DOI: 10.4172/2321-6212-C4-023
New application of mechanical coating process without solvent for Fischer-Tropsch synthesis
Nouria Fatah and X M Liu
Unité de Catalyse et Chimie du Solide, Ecole Centrale de Lille, 59650 Villeneuve d’Ascq, France
U
ltra-clean hydrocarbon fuels produced from syngas by Fischer-Tropsch (FT) synthesis has been applied in industry for
decades. However, the FT catalysts are traditionally synthesized via wet-chemical methods, accompanied by solvent waste
pollution and large energy consumption. The mechanical coating process, by contrast, applies high mechanical shearing/
impacting forces to prepare heterogenous catalysts without any solvent, releases no effluent and needs no drying or post-
heating steps. It is more environmental friendly and sustainable than wet methods. In this research, the dry coating process was
applied to synthesize Co/Al
2
O
3
FT catalysts and catalyst structure was optimized to improve catalytic activity and achieve high
long-chain hydrocarbon yield. In the experiments, (2-15 wt%) Co/Al
2
O
3
catalysts were prepared by mixing various contents
of nanoscale Co
3
O
4
and mesoporous spherical γ-Al
2
O
3
in a high-shearing mixer Picomix (Hosokawa Micron B.V.) at 5000
rpm for 5 min. The obtained catalysts were characterized by a combination of methods (particle size, specific surface area,
SEM and EMP imaging, XRD and H
2
-TPR). Fluidization tests were performed to evaluate attrition resistance of the catalysts.
FT activity was evaluated in a milli fixed-bed under 20 bars and 250 ºC for 24 hours with syngas (H
2
/CO=2 v/v). The results
show that the prepared Co/Al
2
O
3
catalysts possessed uniform Co
3
O
4
coating on surface of Al
2
O
3
particles and presented strong
mechanical resistance ability. Among all the prepared catalysts, the 5 wt% Co/Al
2
O
3
catalyst exhibited the highest reaction rate
(18.4 mmolCO/s/molCo), with low CH
4
selectivity (13.3%) and high C5+ selectivity (75.1%), therefore cost-effective for FT
synthesis application.
Biography
Nouria Fatah has completed her Post-graduation and PhD degree in Chemical Engineering and Powder Technology. Presently she is a full Professor at Ecole
Nationale Supérieure de Chimie de Lille and in the Unité de Catalyse et Chimie du Solide, Lille, France. She is also a Group Leader on Process and Powder
Technology (powder technology and gas-solid fluidization, mechanosynthesis and coating of solids, characterization of powders (physical properties and flowability),
fluidization of cohesive powders and numerical modelization). She is the Director of the Powder Technology and Processes Engineering at PLATFORM. She has
published 98 articles, proceedings, patents and communications.
nouria.fatah@ec-lille.fr