Carbonização hidrotérmica (HTC) aplicada à valorização da matéria orgânica dos resíduos da indústria sucroalcooleira: uma breve revisão

Abstract

Hydrochar (HC) is the main product of an environmental technology hydrothermal carbonization (HTC). HTC is widely used to mitigate the impacts generated by agricultural industries as they play an essential role in addressing the challenges faced by the environment due to human activities. In Pernambuco State these environmental technologies have been gaining prominence, mainly in mitigating problems related to sugarcane production. Hydrothermal Carbonization has proven to be an effective environmental technology to promote optimal management of agricultural waste. HTC is an environmental technology that aims to transform the organic matter (OM) in biomass into a material with greater added value, named as hydrochar. Generally, HTC is performed in a reactor, where the biomass and an aqueous solution are placed and subjected to mild temperatures (180-250°) and self-generated pressures. It has been approached as a promising technology for treating agricultural waste, especially those from the sugar and alcohol industry. Since the waste generated by this industry (e.g., bagasse, vinasse and filter cake) has a high OM content, HTC is more effective. Thus, this work aimed to carry out a literature review to analyze the use of these agricultural residues from the sugar and alcohol industry, as feedstock in the production of hydrochars via HTC.