A system and method for catalyzing graphitization of coal using solar energy concentration

Abstract

The invention relates to a system for catalyzing graphitization of coal by utilizing solar concentration. The system comprises a tower type solar concentrating component and a catalytic graphitizationcomponent; the solar concentrating component comprises a heliostat array and a receiving tower; and the catalytic graphitization component comprises a graphitization reactor disposed on the upper part of the receiving tower. The invention also provides a method for graphitizing pulverized coal by using the system, and the method comprises the following steps: S1, adding pulverized coal and a catalyst into the reactor, introducing inert gas to isolate the reaction raw materials from air; and S2, heating the graphitization reactor to a specified temperature through solar concentration by the heliostat array, and carrying out a reaction for 1-3 hours to obtain a graphitized material. The beneficial effects are as follows that according to the invention, the solar condensation and the catalytic graphitization of coal are effectively combined, and the secondary energy electric energy is replaced by the concentration of the primary energy solar energy to produce a high temperature for catalyzing the graphitization; and according to the requirement of the use of graphite, the solar concentration degree can be appropriately adjusted to change the reaction temperature, so as to reduce theproduction cost of the graphite.

Description

technical field

[0001] The invention belongs to the fields of clean utilization of solar energy and utilization of coal resources, and in particular relates to a system and method for catalyzing graphitization of coal by utilizing solar energy concentration. Background technique

[0002] Graphite is an excellent carbon material with good thermal stability, thermal conductivity, lubricity and chemical stability, and is widely used in metallurgy, machinery, electrical, chemical and other fields. Due to the large demand, natural graphite can no longer meet the needs of human use, which makes artificial graphite attract much attention. Nowadays, the industrial production of graphite mainly involves calcining petroleum coke, pitch coke, anthracite and other carbon-containing raw materials under anaerobic conditions at around 2500°C. Excessively high temperatures increase the cost of producing graphite. Therefore, how to reduce the reaction temperature and thus reduce the product...

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