Hydrothermal carbonization of bamboo was conducted at 300-370°C for 1 h. Products in solid, oil, aqueous and gaseous phases were collected and studied. More than 20% carbon was water-soluble. Oil phase was mainly hydroxylated derivatives of benzene. Hydrochars were composed of many microspheres in morphology, with carbon content of 72.1-81.0%. Around 50-60% of carbon in bamboo remained in hydrochars. High heating value of hydrochars was 1.3-1.6 folds of original bamboo. The hydrochars had higher antioxidative stability than pyrolysis biochar.
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