Characterization of biocoals and dissolved organic matter phases obtained upon hydrothermal carbonization of brewer’s spent grain

Poerschmann, Juergen; Weiner, Barbara; Wedwitschka, Harald; Baskyr, I.; Koehler, Robert; Kopinke, Frank‐Dieter

doi:10.1016/j.biortech.2014.04.052

Cited by 111 publications

(45 citation statements)

References 30 publications

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“…Moreover, the hydrochar had a considerably higher heating value (HHV) than that of the raw material. Poerschmann et al (2014) utilized wet biomass, brewer's spent grain, to produce biocoal. Their experimental results showed that the energy densification of biocoals was increased compared to the raw material.…”

Section: Introductionmentioning

confidence: 99%

Chemical, Energetic, and Structural Characteristics of Hydrothermal Carbonization Solid Products for Lawn Grass

Guo¹,

Dong²,

Liu³

et al. 2015

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Hydrothermal carbonization (HTC) of lawn grass was carried out at 200 °C and 240 °C for 30 to 180 min. The chemical, energetic, and structural characteristics of HTC solid residues were investigated. Results from HTC experiments indicate that solid mass yield of all solid residues was 31 to 50%. The hydrogen/carbon (H/C) and oxygen/carbon (O/C) atomic ratios of all solid residues were 1.17 to 1.64 and 0.45 to 0.65, respectively. The higher heating value (HHV) increased up to 20.54 MJ/kg with increasing HTC residence time at 240 °C for 180 min. Both XRD patterns and FTIR spectra show that differences occur with samples treated as compared to the raw material. Solid hydrochar exhibited higher ordered structure characteristics and was mainly derived from amorphous components degradation when the residence time was increased from 30 to 180 min at 200 °C, while hydrochar formed from cellulose components degradation with increased residence time at 240 °C. According to the results studied, it was found that prolonged residence time was favorable to the formation of hydrochar from lawn grass.

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Section: Introductionmentioning

confidence: 99%

Chemical, Energetic, and Structural Characteristics of Hydrothermal Carbonization Solid Products for Lawn Grass

Guo¹,

Dong²,

Liu³

et al. 2015

BioResources

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“…The present results showed that as pyrolysis temperature increased, there was higher pH, surface area, and CEC, but lower organic carbon and total nitrogen. Poerschmann et al (2014) also demonstrated that the BSG BC properties were different from the hydrothermal carbonization process BC (brewer's spent grain), insofar as the latter had lower pH (6.9) and organic carbon content (513 g kg -1 ). Additionally, the BSG BC adsorption capacity was also affected by the adsorbent dosage, pyrolysis temperature, and residence time (Sun et al 2012).…”

Section: Discussionmentioning

confidence: 99%

“…Cui et al (2013) also found that four kinds of BCs (bush-, wheat straw-, peanut-, and corn-derived BCs) were highly efficient in adsorbing the Pymetrozine. Poerschmann et al (2014) showed that the BC had a significant sorption rate for functionalized, hydrophilic organic compounds, as well as inorganic species. Therefore, it makes sense, from a manufacturing standpoint, to use BSG as a source for BC.…”

Section: Introductionmentioning

confidence: 99%

Removal of the Pesticide Pymetrozine from Aqueous Solution by Biochar Produced from Brewer's Spent Grain at Different Pyrolytic Temperatures

Xi¹,

Yan²,

Quan³

et al. 2014

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Biochar (BC) produced from brewer's spent grain (BSG) via slow pyrolysis at 300, 400, 500, 600, and 700 °C was characterized and investigated as an adsorbent for the removal of the pesticide pymetrozine from aqueous solution. Batch BSG BCs adsorption experiments were carried out under various conditions (such as pH, pymetrozine concentration, and BC dosage) to adsorb the pymetrozine. The BSG BCs adsorption pymetrozine capacities were increased by 21.4% to 55.5% under pyrolysis temperatures of 300, 400, 500, and 600 °C compared to 700 °C with a pyrolysis time of 2 h and by 19.0% to 52.1% at 4 h. At solution pH values of 2, 4, 6, and 8, the adsorption capacities were increased by 9.6% to 39.5% compared with that at pH 10. A similar adsorption tendency was found for the different BCs dosage. In the first 60 min, BC absorbed 70% to 80% pymetrozine. The Langmuir and Freundlich model were highly correlated with BC adsorption. The magnitude of free energy decreased by 32.2% to 47.3% with increasing temperature. The value of the enthalpy change showed the adsorption to be endothermic. The BSG BC had high efficiency in adsorbing pymetrozine and had great potential to prevent the water pollution and reuse the waste of the beer factory.

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“…; Poerschmann et al . ). In the HTC process, valuable carbonaceous products can be produced by heating a suspension of feed stock and water to temperatures of 180–200°C at saturated pressure for several hours (Funke and Ziegler ).…”

Section: Introductionmentioning

confidence: 97%

“…Significance and Impact of the Study: This study suggests that hydrochar derived from sewage sludge can be used as an adsorbent for virus removal in water treatment. Recently, hydrothermal carbonization (HTC) has been highlighted as a cost-effective tool for producing valuable carbonaceous materials from biowaste (Elaigwu et al 2014;Kim et al 2014;Poerschmann et al 2014). In the HTC process, valuable carbonaceous products can be produced by heating a suspension of feed stock and water Journal of Applied Microbiology 119, 876--884…”

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confidence: 99%

Removal of rotavirus and adenovirus from artificial ground water using hydrochar derived from sewage sludge

et al. 2015

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Characterization of biocoals and dissolved organic matter phases obtained upon hydrothermal carbonization of brewer’s spent grain

Cited by 111 publications

References 30 publications

Chemical, Energetic, and Structural Characteristics of Hydrothermal Carbonization Solid Products for Lawn Grass

Chemical, Energetic, and Structural Characteristics of Hydrothermal Carbonization Solid Products for Lawn Grass

Removal of the Pesticide Pymetrozine from Aqueous Solution by Biochar Produced from Brewer's Spent Grain at Different Pyrolytic Temperatures

Removal of rotavirus and adenovirus from artificial ground water using hydrochar derived from sewage sludge

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