Artículo
Pyrolysis and copyrolysis of three lignocellulosic biomass residues from the agro-food industry: A comparative study
Fecha de publicación:
01/02/2020
Editorial:
Pergamon-Elsevier Science Ltd
Revista:
Waste Management (elmsford)
ISSN:
0956-053X
e-ISSN:
1879-2456
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In this study, pyrolysis of residual biomass from the agro-alimentary industry of Argentina was investigated. The studied biomasses were rice husk, peanut shell and wheat straw. The effect of pyrolysis temperatura over solid (bio-char), liquid (bio-oil) and gas (bio-gas) fractions weight yields were evaluated for each biomass, in the range of 350?650 _C. The maximum yield of bio-oil was obtained at 550 _C for rice husk (45 wt%) and wheat straw (58 wt%), and at 500 _C for peanut shells (51 wt%). At those temperatures, the data recorded the smallest spread around the mean. Different characterization techniques of raw biomass were reported, namely, thermal behavior; proximate and ultimate analysis; content of Ca, Al, K, Si and Fe; and hemicellulose, cellulose and lignin composition. Bio-oils characterization included wáter content and chemical compounds identification. Furthermore, bio-char HHV and BET surface area weremeasured. Rice husk bio-oil showed 21% selectivity towards furans of which 75% corresponded to furfural and 5-HMF. Peanut shell bio-char presented the highest Higher Heating Value (7250 kcal/kg) and BET surface area (215 m2/g). In addition, co-pyrolysis reactions and the synergistic effects over obtained products completed this study. Co-pyrolysis bio-oils yields varied between 41 and 46 wt%, for all the mixtures.Bio-oil water content decreased up to 15% for rice husk mixed with peanut shell or wheat straw. Moreover, 5-HMF was detected in all bio-oils, and furfural selectivity was higher than 5% in the three mixtures investigated.
Palabras clave:
RESIDUAL BIOMASS
,
PYROLYSIS
,
RICE HUSK
,
PEANUT SHELL
,
WHEAT STRAW
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Identificadores
Colecciones
Articulos(CITEQ)
Articulos de CENTRO DE INVESTIGACION Y TECNOLOGIA QUIMICA
Articulos de CENTRO DE INVESTIGACION Y TECNOLOGIA QUIMICA
Citación
Fermanelli, Carla Soledad; Córdoba, Agostina; Pierella, Liliana Beatriz; Saux, Clara; Pyrolysis and copyrolysis of three lignocellulosic biomass residues from the agro-food industry: A comparative study; Pergamon-Elsevier Science Ltd; Waste Management (elmsford); 102; 1-2-2020; 362-370
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