▎ 摘　　要

NOVELTY - Preparing liquid oil and silicon carbide by microwave-assisted depolymerization of rice husk involves pulverizing the rice husk, mixing the pulverized rice husk and the microwave absorbent uniformly, and passing the ball milling to obtain a composite material of rice husk and microwave absorbent, then microwave-assisting depolymerization of the rice husk and microwave absorber composite material under an argon atmosphere. The pyrolysis gas generated in the microwave-assisted depolymerization process is condensed to obtain liquid oil, and the solid matter generated in the microwave-assisted depolymerization process is a mixture of silicon, carbon and oxygen. The microwave heating of the silicon-carbon-oxygen mixture is continued under an argon atmosphere, and the obtained solid substance is a silicon carbide mixture. The obtained silicon carbide mixture is calcined in an air atmosphere, after the calcination, the solid substance obtained is silicon carbide. USE - Method for preparing liquid oil and silicon carbide by microwave-assisted depolymerization of rice husk. ADVANTAGE - The method obtains high-value liquid oleochemicals and silicon carbide solid materials by mixing rice husks with strong microwave absorbents for microwave-assisted depolymerization, and provides important technology for the high-value utilization of rice husks.