Utilisation of biomass gasification by-products for onsite energy production
Small scale biomass gasification is a sector with growth and increasing applications owing to the environmental goals of the European Union and the incentivised policies of most European countries. This study addresses two aspects, which are at the centre of attention concerning the operation and de...
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| Veröffentlicht in: | Waste management & research 2016-06, Vol.34 (6), p.564-571 |
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| creator | Vakalis, S Sotiropoulos, A Moustakas, K Malamis, D Baratieri, M |
| description | Small scale biomass gasification is a sector with growth and increasing applications owing to the environmental goals of the European Union and the incentivised policies of most European countries. This study addresses two aspects, which are at the centre of attention concerning the operation and development of small scale gasifiers; reuse of waste and increase of energy efficiency. Several authors have denoted that the low electrical efficiency of these systems is the main barrier for further commercial development. In addition, gasification has several by-products that have no further use and are discarded as waste. In the framework of this manuscript, a secondary reactor is introduced and modelled. The main operating principle is the utilisation of char and flue gases for further energy production. These by-products are reformed into secondary producer gas by means of a secondary reactor. In addition, a set of heat exchangers capture the waste heat and optimise the process. This case study is modelled in a MATLAB-Cantera environment. The model is non-stoichiometric and applies the Gibbs minimisation principle. The simulations show that some of the thermal energy is depleted during the process owing to the preheating of flue gases. Nonetheless, the addition of a secondary reactor results in an increase of the electrical power production efficiency and the combined heat and power (CHP) efficiency. |
| doi_str_mv | 10.1177/0734242X16643178 |
| format | Article |
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This study addresses two aspects, which are at the centre of attention concerning the operation and development of small scale gasifiers; reuse of waste and increase of energy efficiency. Several authors have denoted that the low electrical efficiency of these systems is the main barrier for further commercial development. In addition, gasification has several by-products that have no further use and are discarded as waste. In the framework of this manuscript, a secondary reactor is introduced and modelled. The main operating principle is the utilisation of char and flue gases for further energy production. These by-products are reformed into secondary producer gas by means of a secondary reactor. In addition, a set of heat exchangers capture the waste heat and optimise the process. This case study is modelled in a MATLAB-Cantera environment. The model is non-stoichiometric and applies the Gibbs minimisation principle. The simulations show that some of the thermal energy is depleted during the process owing to the preheating of flue gases. Nonetheless, the addition of a secondary reactor results in an increase of the electrical power production efficiency and the combined heat and power (CHP) efficiency.</description><identifier>ISSN: 0734-242X</identifier><identifier>EISSN: 1096-3669</identifier><identifier>DOI: 10.1177/0734242X16643178</identifier><identifier>PMID: 27118736</identifier><language>eng</language><publisher>London, England: SAGE Publications</publisher><subject>Biofuels ; Biomass ; Biomass energy ; By products ; Byproducts ; Carbon Dioxide - analysis ; Carbon Monoxide - analysis ; Charcoal ; Combustion ; Efficiency ; Electric power ; Energy efficiency ; Equipment Design ; Flue gas ; Flue gases ; Gases - chemistry ; Gasification ; Heat exchangers ; Hydrogen - analysis ; Methane - analysis ; Models, Theoretical ; Reactors ; Small scale ; Studies ; Temperature ; Thermal energy ; Waste Management - instrumentation ; Waste Management - methods ; Waste materials ; Waste Products ; Waste recycling ; Wastes</subject><ispartof>Waste management & research, 2016-06, Vol.34 (6), p.564-571</ispartof><rights>The Author(s) 2016</rights><rights>The Author(s) 2016.</rights><rights>Copyright Sage Publications Ltd. Jun 2016</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c472t-d6879d2c916f5cb9510fc73b187684093cb80fc35dd07bc36d015613f29162fe3</citedby><cites>FETCH-LOGICAL-c472t-d6879d2c916f5cb9510fc73b187684093cb80fc35dd07bc36d015613f29162fe3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://journals.sagepub.com/doi/pdf/10.1177/0734242X16643178$$EPDF$$P50$$Gsage$$H</linktopdf><linktohtml>$$Uhttps://journals.sagepub.com/doi/10.1177/0734242X16643178$$EHTML$$P50$$Gsage$$H</linktohtml><link.rule.ids>314,780,784,21818,27923,27924,43620,43621</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27118736$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Vakalis, S</creatorcontrib><creatorcontrib>Sotiropoulos, A</creatorcontrib><creatorcontrib>Moustakas, K</creatorcontrib><creatorcontrib>Malamis, D</creatorcontrib><creatorcontrib>Baratieri, M</creatorcontrib><title>Utilisation of biomass gasification by-products for onsite energy production</title><title>Waste management & research</title><addtitle>Waste Manag Res</addtitle><description>Small scale biomass gasification is a sector with growth and increasing applications owing to the environmental goals of the European Union and the incentivised policies of most European countries. 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| subjects | Biofuels Biomass Biomass energy By products Byproducts Carbon Dioxide - analysis Carbon Monoxide - analysis Charcoal Combustion Efficiency Electric power Energy efficiency Equipment Design Flue gas Flue gases Gases - chemistry Gasification Heat exchangers Hydrogen - analysis Methane - analysis Models, Theoretical Reactors Small scale Studies Temperature Thermal energy Waste Management - instrumentation Waste Management - methods Waste materials Waste Products Waste recycling Wastes |
| title | Utilisation of biomass gasification by-products for onsite energy production |
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