Combined effects of initial water content and heating parameters on solar pyrolysis of beech wood

Abstract : Compatibility tests were conducted between synthetic oil and potential solid filler materials in a thermocline tank built at the PROMES-CNRS laboratory. These experiments consisted of placing the oil and the solid materials together in small crucibles (2.3 L) and performing compatibility tests at 300 °C and accelerated ageing tests at 330 °C for 500 h. The mutual influence of the oil and the solid materials was assessed through different measurements: X-ray diffraction and scanning electron microscopy. The influence of the solid on the oil was assessed by measuring thermo-physical and chemical properties. While no significant degradation of the oil is measured at 300 °C, at 330 °C, an increase in the oil degradation rate was observed. Its density, thermal conductivity and specific heat did not change, but its viscosity showed a significant increase. However, after accelerated ageing tests at 330 °C, the oil still shows good heat transfer performance. The solid crystalline structure did not change during the test but some of the samples seemed to absorb oil.
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Submitted on : Thursday, October 4, 2018 - 2:35:57 PM
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Kuo Zeng, Daniel Gauthier, Rui Li, Gilles Flamant. Combined effects of initial water content and heating parameters on solar pyrolysis of beech wood. Energy, Elsevier, 2017, 125, pp.552 - 561. ⟨10.1016/j.energy.2017.02.173⟩. ⟨hal-01887763⟩

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