Hydrothermal co-liquefaction of biomasses – quantitative analysis of bio-crude and aqueous phase composition

Hydrothermal liquefaction of 11 biomasses and their co-liquefaction mixtures show how product composition depends on feedstock biochemical components, while nitrogen and oxygen distribution is controlled by carbohydrate and protein interactions.

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Using design of experiments to optimize derivatization with methyl chloroformate for quantitative analysis of the aqueous phase from hydrothermal liquefaction of biomass

Analytical and Bioanalytical Chemistry ◽

10.1007/s00216-016-9321-6 ◽

2016 ◽

Vol 408 (8) ◽

pp. 2171-2183 ◽

Cited By ~ 21

Author(s):

René Bjerregaard Madsen ◽

Mads Mørk Jensen ◽

Anders Juul Mørup ◽

Kasper Houlberg ◽

Per Sigaard Christensen ◽

...

Keyword(s):

Quantitative Analysis ◽

Design Of Experiments ◽

Aqueous Phase ◽

Hydrothermal Liquefaction

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Quantitative analysis of aqueous phase composition of model dentin adhesives experiencing phase separation

Journal of Biomedical Materials Research Part B Applied Biomaterials ◽

10.1002/jbm.b.32675 ◽

2012 ◽

Vol 100B (4) ◽

pp. 1086-1092 ◽

Cited By ~ 20

Author(s):

Qiang Ye ◽

Jonggu Park ◽

Ranganathan Parthasarathy ◽

Francis Pamatmat ◽

Anil Misra ◽

...

Keyword(s):

Phase Composition ◽

Phase Separation ◽

Quantitative Analysis ◽

Aqueous Phase ◽

Dentin Adhesives

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Hydrothermal liquefaction of municipal wastewater sludge and nutrient recovery from the aqueous phase

Biofuels ◽

10.1080/17597269.2020.1863627 ◽

2021 ◽

pp. 1-6

Author(s):

Vinod Kumar ◽

Krishna Kumar Jaiswal ◽

Mikhail S. Vlaskin ◽

Manisha Nanda ◽

M. K. Tripathi ◽

...

Keyword(s):

Aqueous Phase ◽

Municipal Wastewater ◽

Hydrothermal Liquefaction ◽

Wastewater Sludge ◽

Nutrient Recovery

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Bio-Crude Production Improvement during Hydrothermal Liquefaction of Biopulp by Simultaneous Application of Alkali Catalysts and Aqueous Phase Recirculation

Energies ◽

10.3390/en14154492 ◽

2021 ◽

Vol 14 (15) ◽

pp. 4492

Author(s):

Komeil Kohansal ◽

Kamaldeep Sharma ◽

Saqib Sohail Toor ◽

Eliana Lozano Sanchez ◽

Joscha Zimmermann ◽

...

Keyword(s):

Aqueous Phase ◽

Hydrothermal Liquefaction ◽

Biofuel Production ◽

Hydrothermal Conversion ◽

Simultaneous Application ◽

Heating Value ◽

Production Improvement ◽

Catalytic Experiment ◽

Alkali Catalysts ◽

Alkali Elements

This study focuses on the valorization of the organic fraction of municipal solid waste (biopulp) by hydrothermal liquefaction. Thereby, homogeneous alkali catalysts (KOH, NaOH, K2CO3, and Na2CO3) and a residual aqueous phase recirculation methodology were mutually employed to enhance the bio-crude yield and energy efficiency of a sub-critical hydrothermal conversion (350 °C, 15–20 Mpa, 15 min). Interestingly, single recirculation of the concentrated aqueous phase positively increased the bio-crude yield in all cases, while the higher heating value (HHV) of the bio-crudes slightly dropped. Compared to the non-catalytic experiment, K2CO3 and Na2CO3 effectively increased the bio-crude yield by 14 and 7.3%, respectively. However, KOH and NaOH showed a negative variation in the bio-crude yield. The highest bio-crude yield (37.5 wt.%) and energy recovery (ER) (59.4%) were achieved when K2CO3 and concentrated aqueous phase recirculation were simultaneously applied to the process. The inorganics distribution results obtained by ICP reveal the tendency of the alkali elements to settle into the aqueous phase, which, if recovered, can potentially boost the circularity of the HTL process. Therefore, wise selection of the alkali catalyst along with aqueous phase recirculation assists hydrothermal liquefaction in green biofuel production and environmentally friendly valorization of biopulp.

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