A kind of biomass prepressurized hydrothermal carbonization method

Abstract

The invention provides a biomass pre-pressurized hydrothermal carbonization method, which belongs to the field of composite manufacturing. The biomass pre-pressurized hydrothermal carbonization method comprises the following steps: a. preparing raw materials; b. feeding materials; c. pre-pressurizing; d. heating and carbonizing; e. cooling down; f. discharging materials. The invention has the advantage of being able to carbonize biomass to form hydrothermal carbon, thereby realizing the value-added treatment of straw.

Description

Technical field [0001] The invention belongs to the field of composite manufacturing, and relates to a biomass prepressurization hydrothermal carbonization method. Background technique [0002] Hydrothermal carbonization is a simple, efficient, and green way to produce carbon, which belongs to the category of liquid-phase chemical methods. At present, the research of this method mainly focuses on the introduction of templates, the addition of surfactants or the use of element doping to prepare carbon materials and carbon composite materials with special properties, and the continuous extension and expansion of applications in different fields. [0003] The method of hydrothermal carbonization is mainly through a hydrothermal reactor, using carbon water compound or lignocellulose as raw material, water as the reaction medium, and under a certain temperature (130-250℃) and self-generated pressure, the raw material passes through a A series of complex reactions are transformed into c...

AI Technical Summary

Problems solved by technology

The method is relatively simple, the heating time is long, the reaction controllability is poor, and the energy consumption is also high

[0004] As a renewable resource, biomass is largely discarded in agricultural production, which not only wastes resources but also pollutes the environment.

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