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.com
Volume 7, Issue 2 (Suppl)
J Adv Chem Eng, an open access journal
ISSN: 2090-4568
Euro Chemical Engineering 2017
November 16-17, 2017
ADVANCES IN CHEMICAL ENGINEERING AND TECHNOLOGY
November 16-17, 2017 | Paris, France
2
nd
International Conference on
Reforming of toluene with bimetallic catalysts supported on alumina and synthesized by an aqueous
sol-gel process
Stéphanie D Lambert
1
, Claire Courson
2
, Vincent Claude
1
and
Cédric Wolfs
1
1
University of Liege, Belgium
2
University of Strasbourg, France
T
he thermochemical method called “biomass gasification” is generating emphatic interest for the production of bio-Syngas
(CO+H
2
) since this process presents the advantage of being renewable without emitting CO
2
. However, in practical
applications, there are still some technical problems due to high concentration of tars in the outlet gas, which can condensate
and clog the pipes. Previous studies have highlighted the fact that the tar elimination via catalytic reforming seem to be the
more practical and economical solution. Catalysts were synthesized by an aqueous sol-gel process to develop γ-Al
2
O
3
doped
with 10wt.% of nickel and 2 wt.% of a second dopant (Co, Cu, Fe, Mn, Mo). Before their adding in AlOOH sol, metallic dopants
were complexed with (OCH
3
)
3
-Si-(CH
2
)
3
-NH-(CH
2
)
2
-NH
2
(EDAS) to increase their dispersion by cogelation between EDAS
and AlOOH clusters. All the samples were tested for toluene reforming: 31 vol.% CO, 31 vol.% H2, 15,5 vol.% CO
2
, 11 vol.%
H
2
O, 9 vol.% CH4 and 24.000 ppm of toluene. The total flowrate was equal to 50 mL min-1. The temperature was set at 650°C
for 300 min. No previous reduction step has been realized. Each 15 min, injection was sent to a GC Compac for analysis.Figure
1 presents the toluene conversion as a function of benzene selectivity and as a function of carbon deposit after catalytic test for
all the samples. For samples Al
2
O
3
-10Ni-2Mn and Al
2
O
3
-10Ni-2Mo, the addition of Mn or Mo allows increasing the toluene
conversion up to 60%, whereas all other samples present lower toluene conversion (around 30%). Taking into account the
benzene selectivity, it is observed that Mn and Mo are both elements that favor the degradation of aromatic groups. In term of
carbon deposit during catalytic test, sample Al
2
O
3
-10Ni-2Mn is the most interesting doping since only 0.04 gcarbon gcata-1 is
depicted by TG-DSC measurement after catalytic test.
Figure 1
:
Toluene conversion as a function of the benzene selectivity and carbon deposit amount for all catalysts.
Biography
Stéphanie D. Lambert (SL) is a FRS-FNRS research associate and an associate professor in the Department of Chemical Engineering (DCE) of the University of
Liege (Belgium) since 2009. She obtained her Ph.D. in Applied Sciences in 2003. After an engineer position in a Belgian chemical company (Nanocyl) (2004‐2005),
and two postdoctoral stays at the DCE of the University of Illinois at Chicago in 2006, and at the Institute Charles Gerhardt in Montpellier in 2007, she joined
the team “Nanomaterials, Catalysis, Electrochemistry” of the University of Liege, in which she develops heterogeneous catalysts for sustainable chemistry (tars
reforming, treatments of chlorinated compounds, photocatalysis,..). She is vice-chair of the DCE since early 2016. SL has published over 75 publications, 12 book
chapters, holds 1 patent and has an h index of 18. She also received 14 Invited lectures. She is Member of Local Organizing Committee of SOL-GEL 2017, 3-8
September 2017, Liege, Belgium.
stephanie.lambert@ulg.ac.beStéphanie D Lambert et al., J Adv Chem Eng 2017, 7:2(Suppl)
DOI: 10.4172/2090-4568-C1-002