Anaerobic batch conversion of pine wood torrefaction condensate

Tharaka Rama Krishna C. Doddapaneni; Ramasamy Praveenkumar; Henrik Tolvanen; Marja R. T. Palmroth; Jukka Konttinen; Jukka Rintala

doi:10.1016/j.biortech.2016.11.073

Anaerobic batch conversion of pine wood torrefaction condensate

Tharaka Rama Krishna C. Doddapaneni, Ramasamy Praveenkumar, Henrik Tolvanen, Marja R. T. Palmroth, Jukka Konttinen, Jukka Rintala

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19 Citations (Scopus)

Abstract

Organic compound rich torrefaction condensate, owing to their high water content and acidic nature, have yet to be exploited for practical application. In this study, microbial conversion of torrefaction condensate from pine wood through anaerobic batch digestion (AD) to produce methane was evaluated. Torrefaction condensate exhibited high methane potentials in the range of 430-492mL/g volatile solids (VS) and 430-460mL/gVS under mesophilic and thermophilic conditions, respectively. Owing to the changes in the composition, the methane yields differed with the torrefaction condensates produced at different temperatures (225, 275 and 300°C), with a maximum of 492±18mL/gVS with the condensate produced at 300°C under mesophilic condition. The cyclic batch AD experiments showed that 0.1VSsubstrate:VSinoculum is optimum, whereas the higher substrate loading (0.2-0.5) resulted in a reversible inhibition of the methane production. The results suggest that torrefaction condensate could be practically valorized through AD.

Original language	English
Pages (from-to)	299-307
Number of pages	9
Journal	Bioresource Technology
Volume	225
Early online date	22 Nov 2016
DOIs	https://doi.org/10.1016/j.biortech.2016.11.073
Publication status	Published - Feb 2017
Publication type	A1 Journal article-refereed

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title = "Anaerobic batch conversion of pine wood torrefaction condensate",

abstract = "Organic compound rich torrefaction condensate, owing to their high water content and acidic nature, have yet to be exploited for practical application. In this study, microbial conversion of torrefaction condensate from pine wood through anaerobic batch digestion (AD) to produce methane was evaluated. Torrefaction condensate exhibited high methane potentials in the range of 430-492mL/g volatile solids (VS) and 430-460mL/gVS under mesophilic and thermophilic conditions, respectively. Owing to the changes in the composition, the methane yields differed with the torrefaction condensates produced at different temperatures (225, 275 and 300°C), with a maximum of 492±18mL/gVS with the condensate produced at 300°C under mesophilic condition. The cyclic batch AD experiments showed that 0.1VSsubstrate:VSinoculum is optimum, whereas the higher substrate loading (0.2-0.5) resulted in a reversible inhibition of the methane production. The results suggest that torrefaction condensate could be practically valorized through AD.",

author = "Doddapaneni, {Tharaka Rama Krishna C.} and Ramasamy Praveenkumar and Henrik Tolvanen and Palmroth, {Marja R. T.} and Jukka Konttinen and Jukka Rintala",

year = "2017",

month = feb,

doi = "10.1016/j.biortech.2016.11.073",

language = "English",

volume = "225",

pages = "299--307",

journal = "Bioresource Technology",

issn = "0960-8524",

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T1 - Anaerobic batch conversion of pine wood torrefaction condensate

AU - Doddapaneni, Tharaka Rama Krishna C.

AU - Praveenkumar, Ramasamy

AU - Tolvanen, Henrik

AU - Palmroth, Marja R. T.

AU - Konttinen, Jukka

AU - Rintala, Jukka

PY - 2017/2

Y1 - 2017/2

N2 - Organic compound rich torrefaction condensate, owing to their high water content and acidic nature, have yet to be exploited for practical application. In this study, microbial conversion of torrefaction condensate from pine wood through anaerobic batch digestion (AD) to produce methane was evaluated. Torrefaction condensate exhibited high methane potentials in the range of 430-492mL/g volatile solids (VS) and 430-460mL/gVS under mesophilic and thermophilic conditions, respectively. Owing to the changes in the composition, the methane yields differed with the torrefaction condensates produced at different temperatures (225, 275 and 300°C), with a maximum of 492±18mL/gVS with the condensate produced at 300°C under mesophilic condition. The cyclic batch AD experiments showed that 0.1VSsubstrate:VSinoculum is optimum, whereas the higher substrate loading (0.2-0.5) resulted in a reversible inhibition of the methane production. The results suggest that torrefaction condensate could be practically valorized through AD.

AB - Organic compound rich torrefaction condensate, owing to their high water content and acidic nature, have yet to be exploited for practical application. In this study, microbial conversion of torrefaction condensate from pine wood through anaerobic batch digestion (AD) to produce methane was evaluated. Torrefaction condensate exhibited high methane potentials in the range of 430-492mL/g volatile solids (VS) and 430-460mL/gVS under mesophilic and thermophilic conditions, respectively. Owing to the changes in the composition, the methane yields differed with the torrefaction condensates produced at different temperatures (225, 275 and 300°C), with a maximum of 492±18mL/gVS with the condensate produced at 300°C under mesophilic condition. The cyclic batch AD experiments showed that 0.1VSsubstrate:VSinoculum is optimum, whereas the higher substrate loading (0.2-0.5) resulted in a reversible inhibition of the methane production. The results suggest that torrefaction condensate could be practically valorized through AD.

U2 - 10.1016/j.biortech.2016.11.073

DO - 10.1016/j.biortech.2016.11.073

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SN - 0960-8524

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SP - 299

EP - 307

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Anaerobic batch conversion of pine wood torrefaction condensate

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