000187612 001__ 187612
000187612 005__ 20190316235656.0
000187612 037__ $$aCONF
000187612 245__ $$aThermo-economic optimization of a Solid Oxide Fuel Cell - Gas Turbine system fuelled with gasified lignocellulosic biomass
000187612 269__ $$a2013
000187612 260__ $$c2013
000187612 336__ $$aConference Papers
000187612 520__ $$aWithin the context of sustainable energy supply and CO2 emissions reduction a Solid Oxide Fuel Cell (SOFC) - Gas Turbine hybrid system, fuelled with gasified woody biomass for medium scale applications (8MWth,BM of dry biomass) is studied in detail. The system consists of an air dryer moisture removal unit, a gasifier, a hot cleaning section made of a particulate removal unit (cyclone and candle filter) and a two-stage TAR removal unit, a SOFC and a gas turbine with optional CO2 capture. This modern technology has the advantage of using a renewable and CO2-neutral source and to be economically competitive at medium scales. The competitiveness of different process options is systematically compared by applying a coherent approach combining flowsheeting, energy integration and economic evaluation in a multi-objective optimization framework. This analysis reveals the importance of process integration maximising the heat recovery and valorising the waste heat, by cogeneration for example. The studied process options include indirect circulating fluidized bed (using steam or oxygen as gasification agent) and Viking gasifier, atmospheric or pressurized systems and optional pre-reforming in the hot gas cleaning. To close the thermal energy balance, a fraction of the produced syngas can be burnt. The energy integration results reveal that the steam production for the gasification and reforming are key parameters (S/B and S/C ratio) defining the process performance. A multi-objective optimization maximizing the efficiency and minimizing the capital investment costs is performed with respect to the operating conditions and the process configuration in order to assess the trade-offs and identify optimal process designs. The analysis shows the potential of the system converting woody biomass into electricity with energy efficiency greater than 70%.
000187612 6531_ $$aFuels cells
000187612 6531_ $$acogeneration
000187612 6531_ $$abiomass conversion
000187612 6531_ $$aoptimization
000187612 700__ $$0246307$$g222918$$aViana Ensinas, Adriano
000187612 700__ $$0247392$$g229228$$aCaliandro, Priscilla
000187612 700__ $$g166530$$aTock, Laurence$$0242383
000187612 700__ $$aMaréchal, François$$g140973$$0240374
000187612 7112_ $$dJuly 15-19, 2013$$cGuilin , China$$aECOS 2013
000187612 8564_ $$uhttps://infoscience.epfl.ch/record/187612/files/D019final.pdf$$zn/a$$s818866$$yn/a
000187612 909C0 $$xU12691$$0252481$$pIPESE
000187612 909CO $$ooai:infoscience.tind.io:187612$$qGLOBAL_SET$$pconf$$pSTI
000187612 917Z8 $$x222918
000187612 937__ $$aEPFL-CONF-187612
000187612 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000187612 980__ $$aCONF