Sorption enhanced aqueous phase reforming of glycerol for hydrogen production over Pt-Ni supported on multi-walled carbon nanotubes
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- Authors:
- CHAO HE
JIANWEI ZHENG
KE WANG
HAIQIANG LIN
WANG, Jing-Yuan
YANHUI YANG - Author Affiliations:
- Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore
Division of Environmental and Water Resources Engineering, School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
Department of Chemistry, College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry for Solid Surface, National Engineering Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, Xiamen University, Xiamen 361005, China
School of Chemical and Biomedical Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
School of Municipal and Environmental Engineering, Harbin Institute of Technology, 73 Huanghe Road, Harbin, Heilongjiang 150090, China - Source:
- Applied catalysis. B, Environmental. 162:401-411
- Publication Date:
- 2015-01-01
- Language:
- English
- Abstract:
- In this study, multi-walled carbon nanotubes supported Pt and Pt-based bimetallic catalysts were prepared and their catalytic activities were investigated to screen effective and economical catalyst for H2 production in catalytic aqueous phase reforming (CAPR) of glycerol. Nickel promoted Pt catalyst with optimized Ni:Pt molar ratio afforded highest glycerol conversion rate (81.21%) and carbon conversion to gas (15.3%) although hydrogen gasification ratio (7.2%) was poorer than that of noble metals promoted Pt-based bimetallic catalysts. Adding CaO significantly enhanced the fraction and selectivity of H2 over Pt-Ni catalyst and those of CH4 were reduced to a negligible level, which was possibly attributed to the facilitated water-gas shift reaction and inhibited methanation through in-situ CO2 sorption via carbonation. Results suggested that Pt-Ni bimetallic catalysts improved dehydrogenation-decarboxylation and dehydration-hydrogenation reactions, leading to high glycerol conversions. Introducing CaO further favored C-C bond cleavage towards high H2 yield. The catalytic performance can be completely recovered after regenerating the catalyst and adding sacrificial CaO. In terms of reduced consumption of precious metal catalyst, excellent catalyst performance and hydrothermal stability, combination of Pt-Ni bimetallic catalyst and CaO additive was identified as an effective catalytic system for H2 production in CAPR of glycerol.
- Notes:
- General chemistry and physical chemistry
- Subjects:
- General chemistry, physical chemistry
Chimie générale, chimie physique
Environment
Environnement
Sciences exactes et technologie
Exact sciences and technology
Chimie
Chemistry
Chimie generale et chimie physique
General and physical chemistry
Théorie des réactions, cinétique générale. Catalyse. Nomenclature, documentation chimique, informatique chimique
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Catalyse
Catalysis
Physicochimie de surface
Surface physical chemistry
Métal transition
Transition metal
Metal transición
Adsorption
Adsorción
Carbone
Carbon
Carbono
Catalyse hétérogène
Heterogeneous catalysis
Catálisis heterogénea
Catalyseur mixte
Mixed catalyst
Catalizador mixto
Gaz à l'eau
Water gas
Gas con agua
Glycérol
Glycerol
Glicerol
Hydrogène
Hydrogen
Hidrógeno
Nanotube multifeuillet
Multiwalled nanotube
Nanotubo pared múltiple
Nickel
Niquel
Palladium
Paladio
Platine
Platinum
Platino
Platinoïde
Platinoid
Platinoide
Protection environnement
Environmental protection
Protección medio ambiente
Reformage
Reforming
Reformación
Sorption
Sorción
Support
Soporte
Bimetallic catalyst
CO2 removal
Platinum-nickel
Platinum-palladium
Water-gas shift - Format:
- Academic Journal
- Database:
- PASCAL Archive
- Journal:
- Applied catalysis. B, Environmental
- Volume:
- 162
- Page Start:
- 401
- Page Count:
- 11
- ISSN:
- 09263373
- Publisher:
- Kidlington: Elsevier, 2015.
- Document Type:
- Article
- Physical Description:
- print, 42 ref
