Characteristics of hydrochar and hydrothermal liquid products from hydrothermal carbonization of corncob

Challenges and opportunities of hydrothermal carbonisation in the UK; case study in Chirnside

“…10 In addition to the feedstock type, HTC reactor conditions also affect the property of the resulting hydrochar. 25 For example, one study conducted HTC of paper sludge over an experimental range of 180-300 C. The maximum heating value (9.7 MJ kg À1 ) and highest energetic recovery efficiency (90.12%) of the experimental trials was at a temperature of 210 C. 26 This implies that nal application of the hydrochar as fuel source would be most optimally produced at this temperature. However, this study further found that hydrochar had lower nitrogen and sulphur contents as the reactor temperature was increased.…”

“…In addition to the feedstock type, HTC reactor conditions also affect the property of the resulting hydrochar. 25 For example, one study conducted HTC of paper sludge over an experimental range of 180–300 °C. The maximum heating value (9.7 MJ kg −1 ) and highest energetic recovery efficiency (90.12%) of the experimental trials was at a temperature of 210 °C.…”

Life cycle assessment for hydrothermal carbonization of urban organic solid waste in comparison with gasification process: A case study of Southern Chile

“…HTC is a thermochemical process able to convert biomass in hydrochar at water subcritical conditions 30 . This technology main advantages are: (i) lower operation temperature than other biomass conversion processes (180–250°C), 31 (ii) ability to process biomass without pretreatment, that is, drying, and (iii) the hydrochar has hydrophobic properties and higher calorific value than raw biomass 32 .…”

Key Characteristics of Carbonized Corncob through Hydrothermal and Pyrolysis Conversion Techniques for Further Activation

“…The prolonged residence time effected on the increase of high heating value beyond 0.5 hour at 250 o C of 0.5 to 6 hour [11]. Arellano et al [12] reported the energy densification of corncob hydrochar increased with reaction temperature at 180, 200, 250 and 350 o C. The most of characterization of hydrochar including thermogravimetric analysis (TGA), Fourier Transform Infrared (FT-IR) Spectroscopy and scanning electron microscopy (SEM) verified the properties at different conditions focusing on an energy performance purpose except the specific adsorption of Blue Methylene. However, the decrease of specific adsorption with higher hydrothermal temperature could not be conclusive in this study.…”