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Gas-phase dehydration of glycerol over hierarchical silicoaluminophosphate SAPO-40
被引:19
作者:
Fernandes, Auguste
[1
]
Filipa Ribeiro, M.
[1
]
Lourenco, Joao P.
[1
,2
]
机构:
[1] Univ Lisbon, Inst Super Tecn, Ctr Quim Estrutural, Av Rovisco Pais, P-1096001 Lisbon, Portugal
[2] Univ Algarve, CIQA, Fac Ciencias & Tecnol, Campus Gambelas, P-8005139 Faro, Portugal
关键词:
Hierarchical;
SAPO-40;
Glycerol dehydration;
Acrolein;
Sustainable chemistry;
SURFACTANT-DIRECTED SYNTHESIS;
HYDROTHERMAL STABILITY;
SUSTAINABLE PRODUCTION;
ACROLEIN;
CATALYSTS;
PERFORMANCE;
CONVERSION;
ZEOLITES;
POROSITY;
D O I:
10.1016/j.catcom.2017.02.015
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Hierarchical silicoaluminophosphate SAPO-40 was synthetized using an organosilane acting as additional porogen agent. The structural, textural and acid properties of the new material were evaluated using XRD, Si-29 and Al-27 MAS NMR, SEM, N-2 adsorption, pyridine adsorption followed by IR spectroscopy and thermal analyses. The evaluation of the catalytic performance in the dehydration of glycerol has evidenced a high activity and a very low deactivation rate. When compared with the conventional SAPO-40, this catalyst shows higher acrolein selectivity and a significantly longer catalytic lifetime. (C) 2017 Elsevier B.V. All rights reserved.
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页码:16 / 20
页数:5
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