Preliminary Results of Biomass Gasification Obtained at Pilot Scale with an Innovative 100 kWth Dual Bubbling Fluidized Bed Gasifier

Andrea Di Carlo, Elisa Savuto, Pier Ugo Foscolo, Alessandro Antonio Papa, Alessandra Tacconi, Luca Del Zotto, Bora Aydin and Enrico Bocci
Additional contact information
Andrea Di Carlo: Industrial Engineering Department, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, 67100 L’Aquila, Italy
Elisa Savuto: Industrial Engineering Department, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, 67100 L’Aquila, Italy
Pier Ugo Foscolo: Industrial Engineering Department, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, 67100 L’Aquila, Italy
Alessandro Antonio Papa: Industrial Engineering Department, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, 67100 L’Aquila, Italy
Alessandra Tacconi: Industrial Engineering Department, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, 67100 L’Aquila, Italy
Luca Del Zotto: CREAT, Centro di Ricerca su Energia, Ambiente e Territorio, Università Telematica eCampus, 22060 Novedrate, Italy
Bora Aydin: Walter Tosto SpA, Via Erasmo Piaggio 62, 66100 Chieti, Italy
Enrico Bocci: Department of Nuclear, Subnuclear and Radiation Physics, Marconi University, 00193 Rome, Italy

Energies, 2022, vol. 15, issue 12, 1-15

Abstract: Biomass gasification is a favourable process to produce a H 2 -rich fuel gas from biogenic waste materials. In particular, the dual bubbling fluidized bed (DBFB) technology consists of the separation of the combustion chamber, fed with air, from the gasification chamber, fed with steam, allowing to obtain a concentrated syngas stream without N 2 dilution. In a previous work, an innovative design of a DBFB reactor was developed and its hydrodynamics tested in a cold model; in this work, the novel gasifier was realized at pilot scale (100 kWth) and operated for preliminary biomass gasification tests. The results showed a high-quality syngas, composed of H 2 = 35%, CO = 23%, CO 2 = 20%, and CH 4 = 11%, as a confirmation of the design efficacy in the separation of the reaction chambers. The dry gas yield obtained was 1.33 Nm 3 /kg of biomass feedstock and the carbon conversion was 73%. Tars were sampled and measured both in the raw syngas, giving a content of 12 g/Nm 3 , and downstream from a traditional conditioning system composed of a cyclone and a water scrubber, showing a residual tar content of 3 g/Nm 3 , mainly toluene. The preliminary tests showed promising results; further gasification tests are foreseen to optimize the main process parameters.

Keywords: biomass gasification; dual bubbling bed gasifier; innovative pilot scale gasifier; H 2 -rich syngas (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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