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Assessment of the e...
Assessment of the effects of process water recirculation on the surface chemistry and morphology of hydrochar
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Arauzo, P. J. (author)
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Olszewski, M. P. (author)
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- Wang, Xia (author)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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Pfersich, J. (author)
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Sebastian, V. (author)
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Manyà, J. (author)
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- Hedin, Niklas (author)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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Kruse, A. (author)
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(creator_code:org_t)
- Elsevier BV, 2020
- 2020
- English.
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In: Renewable energy. - : Elsevier BV. - 0960-1481 .- 1879-0682. ; 155, s. 1173-1180
- Related links:
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https://zenodo.org/r...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The effect of two process water (PW) recirculation strategies after hydrothermal carbonization (HTC) of brewers spent grains (BSG) is evaluated with the focus on the hydrochar characteristics. The HTC process has been carried out under different operating conditions, which are residence time between 2 and 4 h and temperature in the range of 200-220 degrees C. The composition of the hydrochars reveals that operating conditions have a more significant effect than PW recirculation. The composition of the liquid produced by HTC with PW recirculation is essentially controlled by the operating temperature, for instance, the total organic carbon (TOC) in the PW changes in the narrow range of 200-220 degrees C. A detailed analysis of PW also has been done. The main components of the liquid phase are lactic, formic, acetic, levulinic, and propionic acid as well as 5-hydroxymethylfurfural, that affect the surface structure of the hydrochars.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Naturresursteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Engineering (hsv//eng)
Keyword
- Hydrothermal carbonization
- Biochar
- Aqueous phase
- Recirculation
- Brewer's spent grains
- Green & Sustainable Science & Technology
Publication and Content Type
- ref (subject category)
- art (subject category)
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