Production method for microwave catalytic pyrolysis of Eupatorium adenophorum

Abstract

The invention relates to a production method for microwave catalytic pyrolysis of Eupatorium adenophorum, and belongs to the technical field of comprehensive utilization of resources. The method comprises the following steps: placing Eupatorium adenophorum in a FeSO4 solution, impregnating the Eupatorium adenophorum under an ultrasonic condition, and carrying out filtering and drying to obtain impregnated Eupatorium adenophorum; placing the Eupatorium adenophorum in carbon dioxide atmosphere in a microwave oven, and pyrolyzing the Eupatorium adenophorum at 700-900 DEG C for 30-90 min to obtain a gas product and a solid product; rapidly condensing the gas product at -2 DEG C to directly condense a condensable part into a liquid-phase high quality bio-oil, further processing the bio-oil to obtain a bio-oil fuel, and processing a non-condensable part to form a fuel substitute; and cooling the solid product to room temperature in order to obtain magnetic active carbon. The method allows the high-added value products bio-mass carbon, gas and oil to be prepared through the microwave catalytic pyrolysis of a raw material Eupatorium adenophorum by using FeSO4 as a catalyst, and so the comprehensive utilization of the Eupatorium adenophorum is realized.

Description

technical field [0001] The invention relates to a microwave catalytic pyrolysis production method of Eupatorium adenophorum, belonging to the technical field of comprehensive utilization of resources. Background technique [0002] With the depletion of fossil energy, human beings have to face the increasingly serious energy crisis and chemical resource crisis. Searching for clean and renewable energy and green chemicals has become the focus of research in various countries. Biomass resources as a cheap [0003] Renewable resources that are easy to obtain and come from a wide range of sources have great potential for development and application. Researchers from all over the world have conducted active exploration and experimental research on the utilization of biomass resources, and have achieved certain research results. However, these studies often focus on a certain aspect of the utilization of biomass resources, which belongs to the way of "separate efforts" and does no...

AI Technical Summary

Problems solved by technology

However, this invention only considers the utilization of biomass gas products, but ignores the comprehensive utilization of biomass oil and biomass carbon, and the utilization rate of resources is greatly reduced

[0009] The patent application number is 201410547885.7, and the name is a method for directional production of biomass charcoal, biomass oil and biomass gas by using microwave catalytic pyrolysis of biomass. It discloses a method of uniformly mixing biomass with metal salts or metal oxide catalysts. , and then pyrolyzed to obtain gas products and solid products, the gas products are rapidly condensed, the condensable part is directly condensed into liquid high-quality biomass oil, and the non-condensable gas is a high calorific value gas fuel; the solid product is taken out after cooling to room temperature with the furnace to obtain High-yield biochar, the high-yield biochar is directly used as a raw material or fuel for the production of activated carbon, but the specific surface area of ​​activated carbon is only 300-400m 2 / g, when adsorbing dye wastewater, the adsorption capacity is small, so it cannot be used as an adsorbent in dye wastewater