Most would agree that the production of biofuels is important, even necessary, for our future. There are significant differences in the production of various biofuels, especially concerning the production of biocoal, which will impact the acceptance and use of biofuel in the future. This article focuses on one technology for the production of biocoal which has seen some significant development in the past few years; hydrothermal carbonization. Carbonization is a natural process through which, under pressure but at low temperatures, coal-like solid biofuels are produced from biomass. Hydrothermal carbonization (HTC) accelerates this process from millions of years to only a few hours.
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