Device and method for preparing ordered mesoporous carbon-metal composite material and co-producing biological carbon from solid waste biomass

Abstract

The invention belongs to the technical field of environmental protection materials, and provides a device and method for preparing an ordered mesoporous carbon-metal composite material and co-producing carbon from solid waste biomass. The device comprises a central control unit, a feeding unit, a double spiral mixing conveying device, a multi-functional reactor, a pH regulator, a solid-liquid separation device, a hydrothermal coupling carbonization device and a pyrolysis gas circulation device. In view of toxic and harmful carbon precursors such as phenol and formaldehyde in the ordered mesoporous carbon field, a dilute acid-coupled metal salt is researched and developed to catalyze hydrothermal acid-decomposition of solid waste biomass instead of toxic reagents, and high-value utilizationof the solid waste biomass is realized. In-situ doping of a metal salt can achieve preparation of the ordered mesoporous carbon-metal salt composite, and the product has both an electric double layerand pseudocapacitance energy storage characteristic, and excellent electrical reserves. In-situ catalysis of the metal salt results in preparation of a high-porosity biological carbon material. The design of integrated equipment realizes continuous operation of acid hydrolysis, solidification and carbonization, and is conducive to industrialization and application.

Description

technical field [0001] The invention belongs to the technical field of environmental protection materials, and in particular relates to a device and method for preparing ordered mesoporous carbon-metal composite materials using solid waste biomass as a carbon precursor, which can realize simultaneous preparation of high-quality biochar. Background technique [0002] Ordered mesoporous carbon is a new type of nanostructured material with ordered pores, adjustable pore size, and pore size between 2 and 50 nm. It has been widely used in energy storage, catalysis, sensing and water pollution control in recent years. and many other fields. The three major elements for the preparation of ordered mesoporous carbon are: precursors, structure-directing agents, and solvents, among which common precursors include phenol, resorcinol, formaldehyde, glucinol, and cyclohexamethylenetetramine. For example, Chinese patent document CN108483421A discloses a method for preparing nitrogen-rich ...

AI Technical Summary

Problems solved by technology

The above methods all have the following problems: the use of toxic and harmful chemical reagents such as phenol and formaldehyde as precursors not only leads to high production costs, but also causes harm to workers and the environment during the synthesis process

Both of the above two methods use two separate equipment to operate independently, which is difficult to achieve integrated continuous operation in industry, and consumes a lot of energy and preparation time

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