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https://hdl.handle.net/1822/51754
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Campo DC | Valor | Idioma |
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dc.contributor.author | Diender, Martijn | por |
dc.contributor.author | Uhl, Philipp | por |
dc.contributor.author | Bitter, Johannes Hendrik | por |
dc.contributor.author | Stams, Alfons Johannes Maria | por |
dc.contributor.author | Sousa, Diana Zita Machado | por |
dc.date.accessioned | 2018-03-07T19:25:01Z | - |
dc.date.issued | 2018-02 | - |
dc.identifier.citation | Diender, Martijn; Uhl, Philipp; Bitter, Johannes Hendrik; Stams, A. J. M.; Sousa, Diana Z., High rate biomethanation of carbon monoxide rich gases via a thermophilic synthetic co-culture. | por |
dc.identifier.issn | 2168-0485 | por |
dc.identifier.uri | https://hdl.handle.net/1822/51754 | - |
dc.description | The Supporting Information is available free of charge on the ACS Publications website at DOI: 10.1021/acssuschemeng.7b03601. | por |
dc.description.abstract | Carbon monoxide-fermenting microorganisms can be used for the production of a wide range of commodity chemicals and fuels from syngas (generated by gasification of e.g. wastes or biomass) or industrial off-gases (e.g. from steel industry). Microorganisms are normally more resistant to contaminants in the gas (e.g. hydrogen sulfide) than chemical catalysts, less expensive and self-regenerating. However, some carboxydotrophs are sensitive to high concentrations of CO, resulting in low growth rates and productivities. We hypothesize that cultivation of synthetic co-cultures can be used to improve overall rates of CO bioconversion. As case study a thermophilic microbial co-culture, consisting of Carboxydothermus hydrogenoformans and Methanothermobacter thermoautotrophicus was constructed to study the effect of co-cultivation on conversion of CO-rich gasses to methane. In contrast to the methanogenic monoculture, the co-culture was able to efficiently utilize CO or mixtures of H2/CO/CO2 to produce methane at high efficiency and high rates. In CSTR-bioreactors operated in continuous mode, the co-culture converted artificial syngas (66.6% H2: 33.3% CO) to an outflow gas with a methane content of 72%, approaching the 75% theoretical maximum. CO conversion efficiencies of 93% and volumetric production rates of 4 m3methane/m3liquid/day were achieved. This case shows that microbial co-cultivation can result in a significant improvement of gas-fermentation of CO-rich gasses. | por |
dc.description.sponsorship | The authors thank Ton van Gelder for laboratory support. This research is supported by a Gravitation grant (project 024.002.002) of The Netherlands Ministry of Education, Culture and Science and The Netherlands Science Foundation (NWO). Research of A.J.M.S. and D.Z.S. is supported by an ERC grant (project 323009). | por |
dc.language.iso | eng | por |
dc.publisher | American Chemical Society (ACS) | por |
dc.relation | info:eu-repo/grantAgreement/EC/FP7/323009/EU | por |
dc.rights | restrictedAccess | por |
dc.subject | Methanogenesis | por |
dc.subject | Hydrogenogenesis | por |
dc.subject | Syngas fermentation | por |
dc.subject | Carboxydothermus hydrogenoformans | por |
dc.subject | Methanothermobacter thermoautotrophicus | por |
dc.subject | Sabatier process | por |
dc.title | High rate biomethanation of carbon monoxide rich gases via a thermophilic synthetic co-culture | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://pubs.acs.org/journal/ascecg | por |
dc.comments | CEB47354 | por |
oaire.citationStartPage | 2169 | por |
oaire.citationEndPage | 2176 | por |
oaire.citationIssue | 2 | por |
oaire.citationVolume | 6 | por |
dc.date.updated | 2018-02-26T11:31:58Z | - |
dc.identifier.eissn | 2168-0485 | por |
dc.identifier.doi | 10.1021/acssuschemeng.7b03601 | por |
dc.description.publicationversion | info:eu-repo/semantics/publishedVersion | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | ACS Sustainable Chemistry & Engineering | por |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
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document_47354_1.pdf Acesso restrito! | 1,43 MB | Adobe PDF | Ver/Abrir |