Effect of fractional condensation system coupled with an auger pyrolizer on bio-oil composition and properties

Álvarez-Chávez, Brenda J.; Godbout, Stéphane; Raghavan, Vijaya

doi:10.1016/j.jaap.2021.105270

Cited by 4 publications

(1 citation statement)

References 38 publications

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“…Fine particles were separated from the pyrolysis gas by an internal deflector 10.2 cm in diameter and 10.5 cm long placed at the reactor exit. The gas was evacuated through an opening in the top part of the tank and directed towards the countercurrent condensation system composed of three condensers as described by Álvarez-Chávez et al [17], one at 120 • C to recover the oily phase of bio-oil, another for the recovery of the aqueous phase, and the last at 4 • C for the recovery of the remaining aqueous phase. The reported yields (Y) are calculated on wet basis according to Equations ( 4)-( 6) as follows: Y% biochar = mass of char/mass of biomass,…”

Section: Pyrolysis Operating Conditionsmentioning

confidence: 99%

Valorisation of Cranberry Residues through Pyrolysis and Membrane Filtration for the Production of Value-Added Agricultural Products

Bennani,

Ndao,

Konan

et al. 2023

Energies

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Pyrolysis is a thermochemical conversion process producing biochar, gas, and bio-oil at high temperatures in an oxygen-free environment. Specific pyrolysis conditions enable a significant production of the aqueous phase of bio-oil, commonly known as wood vinegar. Wood vinegar contains organic compounds such as acetic acid and phenols derived from bio-oil. These compounds have herbicidal properties against weeds and biostimulant properties for plant growth. This study reveals the potential for efficient management of cranberry residues consisting of stems and leaves by producing wood vinegar through pyrolysis at 475 °C with a humidity level of 20%. Membrane separation of wood vinegar, using nanofiltration (NF) and reverse osmosis (RO) membranes, yielded phenols in the retentate and acetic acid in the permeate with respective yields of 44.7% with NF membrane and 45% with RO membrane. Biostimulation tests using 2% of the retentate showed significant germination rates for basil, sage, and parsley plants. Additionally, using 40 mL of the wood vinegar permeate (30 mL injected at the base and 10 mL sprayed on the leaves) resulted in leaf damage, measured by conductivity (leakage of electrolytes released by the leaves), of 62.3% and 20.5% respectively for quack grass and white clover, two weeds found in cranberry production.

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Section: Pyrolysis Operating Conditionsmentioning

confidence: 99%