Charcoal from anaerobically digested dairy fiber for removal of hydrogen sulfide within biogas
Anaerobically digested fibrous solid (AD fiber) is an abundant material that offers potential to produce value-added products such as biochar. The objective of this paper is to better understand how thermochemical processing conditions affect the capacity of biochars derived from AD fiber to adsorb...
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| Autores Principales: | , |
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| Formato: | info:eu-repo/semantics/ARTÍCULO |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: | http://dspace.ucuenca.edu.ec/handle/123456789/31430 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85043340670&origin=inward |
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| Sumario: | Anaerobically digested fibrous solid (AD fiber) is an abundant material that offers potential to produce value-added products such as biochar. The objective of this paper is to better understand how thermochemical processing conditions affect the capacity of biochars derived from AD fiber to adsorb H 2 S from biogas. AD fiber was pyrolyzed in an electric tube reactor at temperatures up to 600° C and 60 min. The chars were employed for H 2 S scrubbing tests from a synthetic biogas. Results showed that the chars' capacity for H 2 S removal is comparable to that of activated carbon. An additional step consisting of impregnation of the chars with Na 2 CO 3 resulted in an improved capacity for H 2 S removal. To study the effect of ash, the AD fiber was also subjected to an alternative thermal treatment, hot water extraction (HWE), at 200° C for 60 min. The resulting HWE material … |
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