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Explorative Catalyst Screening Studies on Reforming of Glycerol in Supercritical Water Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Journal The Journal of Supercritical Fluids
ISSN: 0896-8446 , E-ISSN: 1872-8162
Output data Year: 2012, Volume: 70, Pages: 171-181 Pages count : 11 DOI: 10.1016/j.supflu.2012.05.014
Tags Catalytic reforming, Glycerol, Methanation, Supercritical water
Authors van Bennekom J.C. 1 , Kirillov V.A. 2,3 , Amosov Y.I. 2,3 , Krieger T. 2 , Venderbosch R.H. 4 , Assink D. 4 , Lemmens K.P.J. 4 , Heeres H.J. 1
Affiliations
1 University of Groningen, Groningen, The Netherlands
2 Boreskov Institute of Catalysis, Novosibirsk, Russia
3 Novosibirsk State University, Novosibirsk, Russia
4 BTG, Biomass Technology Group, Enschede, The Netherlands

Funding (5)

1 European Commission 212180 FP7-ENERGY-2007-1-RTD
2 Netherlands Enterprise Agency 0268-05-04-02-011
3 Netherlands Enterprise Agency EOSLT05020
4 Netherlands Enterprise Agency NEOT01008
5 European Commission FP5-EESD ENK6-CT-2001-00555

Abstract: was carried out to investigate the influence of different catalysts on the carbon-to-gas efficiency and gas composition in the reforming of glycerol in supercritical water. Experiments were conducted at 255–270 bar in a continuous set-up, with temperatures ranging from 375 to 700 ◦C, a feed concentration of 10 wt%, and a residence time of 8–87 s. The catalysts promoted the decomposition of glycerol significantly. At 674 ◦C the conversion of glycerol without catalyst was approximately 40%, while in the presence of catalysts (almost) complete conversion was obtained. All catalysts promoted the water-gas shift reaction, while the ones based on Ni also promoted methanation. Visual coke formation was significant for Ni/ZrO2 and Pt/CeZrO2, which might be responsible for the observed reduction in activity at longer runtimes for these two catalysts. The specific surface area of all catalysts, apart from CuZn, decreased after contact with water at supercritical conditions. Except for NiCu/CeZrO2, XRD analysis indicated only minor changes in crystal structure of the supports, confirming the stability and suitability of these supports in supercritical water.
Cite: van Bennekom J.C. , Kirillov V.A. , Amosov Y.I. , Krieger T. , Venderbosch R.H. , Assink D. , Lemmens K.P.J. , Heeres H.J.
Explorative Catalyst Screening Studies on Reforming of Glycerol in Supercritical Water
The Journal of Supercritical Fluids. 2012. V.70. P.171-181. DOI: 10.1016/j.supflu.2012.05.014 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Dec 26, 2011
Accepted: May 7, 2012
Published online: Jun 15, 2012
Published print: Oct 1, 2012
Identifiers:
publication_identifier.wos_identifier_type WOS:000309314800020
publication_identifier.scopus_identifier_type 2-s2.0-84865683173
publication_identifier.rinz_identifier_type 20473266
publication_identifier.accession_number_identifier_type 2012:1303243
publication_identifier.chemical_accession_number_identifier_type 158:577232
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