Catalytic supercritical water gasification : continuous methanization of Chlorella vulgaris

Peng, Gaël; Vogel, Frédéric; Refardt, Dominik; Ludwig, Christian

doi:10.1021/acs.iecr.7b00042

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Catalytic supercritical water gasification : continuous methanization of Chlorella vulgaris
Authors:	Peng, Gaël Vogel, Frédéric Refardt, Dominik Ludwig, Christian
DOI:	10.1021/acs.iecr.7b00042
Published in:	Industrial & Engineering Chemistry Research
Volume(Issue):	56
Issue:	21
Page(s):	6256
Pages to:	6265
Issue Date:	2017
Publisher / Ed. Institution:	American Chemical Society
ISSN:	0888-5885 1520-5045
Language:	English
Subjects:	Microalgae; Methane; Energy; Gasification
Subject (DDC):	660: Chemical engineering
Abstract:	Continuous catalytic supercritical water gasification (CSCWG; 400 °C, 28 MPa) of microalgal biomass (Chlorella vulgaris) was carried out at the microalgae production site of ZHAW in Wädenswil (Switzerland) nonstop over a period of 100 h. Microalgae slurries (3-15 wt %) were successfully gasified to a methane-rich gas for 55 h. The low total organic carbon of the reactor effluent (<400 mg L–1) recorded during that period demonstrated the high catalytic activity of the Ru/C catalyst for converting microalgae to the gaseous products. The addition of a sulfur removal step with a commercial zinc oxide adsorbent was essential for protecting the catalyst against sulfur poisoning. A brine effluent rich in nutrients (N, K, S, P, Na) was withdrawn continuously from a salt separator. In summary, the use of a zinc oxide adsorbent upstream of the catalyst bed, together with a higher ruthenium loading of the catalyst, improved the long-term performance of the CSCWG process significantly.
URI:	https://digitalcollection.zhaw.ch/handle/11475/1469
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	Life Sciences and Facility Management
Organisational Unit:	Institute of Natural Resource Sciences (IUNR)
Appears in collections:	Publikationen Life Sciences und Facility Management

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Peng, G., Vogel, F., Refardt, D., & Ludwig, C. (2017). Catalytic supercritical water gasification : continuous methanization of Chlorella vulgaris. Industrial & Engineering Chemistry Research, 56(21), 6256–6265. https://doi.org/10.1021/acs.iecr.7b00042

Peng, G. et al. (2017) ‘Catalytic supercritical water gasification : continuous methanization of Chlorella vulgaris’, Industrial & Engineering Chemistry Research, 56(21), pp. 6256–6265. Available at: https://doi.org/10.1021/acs.iecr.7b00042.

G. Peng, F. Vogel, D. Refardt, and C. Ludwig, “Catalytic supercritical water gasification : continuous methanization of Chlorella vulgaris,” Industrial & Engineering Chemistry Research, vol. 56, no. 21, pp. 6256–6265, 2017, doi: 10.1021/acs.iecr.7b00042.

PENG, Gaël, Frédéric VOGEL, Dominik REFARDT und Christian LUDWIG, 2017. Catalytic supercritical water gasification : continuous methanization of Chlorella vulgaris. Industrial & Engineering Chemistry Research. 2017. Bd. 56, Nr. 21, S. 6256–6265. DOI 10.1021/acs.iecr.7b00042

Peng, Gaël, Frédéric Vogel, Dominik Refardt, and Christian Ludwig. 2017. “Catalytic Supercritical Water Gasification : Continuous Methanization of Chlorella Vulgaris.” Industrial & Engineering Chemistry Research 56 (21): 6256–65. https://doi.org/10.1021/acs.iecr.7b00042.

Peng, Gaël, et al. “Catalytic Supercritical Water Gasification : Continuous Methanization of Chlorella Vulgaris.” Industrial & Engineering Chemistry Research, vol. 56, no. 21, 2017, pp. 6256–65, https://doi.org/10.1021/acs.iecr.7b00042.