Microwave continuous frequency modulation synergistic biomass directional depolymerization device and use method thereof

Abstract

The invention discloses a microwave continuous frequency modulation synergistic biomass directional depolymerization device and a use method thereof, and belongs to the technical field of biomass resource utilization. The device comprises a microwave continuous frequency modulation power supply, a microwave resonant cavity, a quartz tube reactor and a product treatment device, the microwave resonant cavity is provided with a microwave feed port, and the microwave continuous frequency modulation power supply is connected with the microwave feed port; the quartz tube reactor is connected with aninert gas source, a biomass feeding hopper is connected to the quartz tube reactor, a catalyst filling screen shock insulator is arranged in the middle of the quartz tube reactor, an infrared thermalimager is arranged above the quartz tube reactor, and an infrared thermometer is arranged at the catalyst filling screen shock insulator; the product treatment device comprises a condensation systemand a gas collection bag, the condensation system is arranged at the outlet of the quartz tube reactor, and the gas collection bag is arranged at the outlet of the condensation system. By matching themicrowave emission frequency with the three components of biomass and the intrinsic resonance frequency of a catalyst, the purposes of reducing the cracking activation energy of the biomass and realizing directional depolymerization are achieved.

Description

technical field [0001] The invention belongs to the technical field of biomass resource utilization, and in particular relates to a microwave continuous frequency modulation coordinated biomass directional depolymerization device and a method for using the same. Background technique [0002] Lignocellulosic biomass is an ideal alternative resource for fossil energy. As a large agricultural country, my country has abundant agricultural and forestry biomass resources. According to the 2017 "World Energy Outlook - China Special Report", my country can produce 300 million tons of crop straw waste and 300 million tons of forestry waste every year. Therefore, making full use of agricultural and forestry biomass resources is a feasible way to alleviate my country's dependence on petrochemical energy. With the depletion of fossil energy, it will definitely affect the production and application of energy and fine chemicals in our country, and then have a serious impact on people's ...

AI Technical Summary

Problems solved by technology

Lignocellulose is a complex macromolecule composed of cellulose, hemicellulose, and lignin connected by C-O bonds, C-C bonds, etc. During its high-value utilization, due to the unevenness of traditional heating methods and the difficulty of temperature control Defects, it is difficult to achieve selective cleavage of C-O bonds and C-C bonds in lignocellulosic macromolecules

Images