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Method for directionally producing biomass charcoal, biomass oil and biomass gas through microwave catalytic pyrolysis of biomass

A technology of biomass charcoal and microwave catalysis, which is applied to the preparation of biofuels and liquid hydrocarbon mixtures, and the treatment of hydrocarbon oils. The effect of moderate solution temperature and fast reaction rate

Active Publication Date: 2015-02-18
KUNMING UNIV OF SCI & TECH
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Problems solved by technology

[0015] In view of the problems of high cost, serious pollution and insufficient comprehensive utilization of resources in the utilization of biomass energy and the existing pyrolysis preparation technology, a new microwave heating method is provided to promote the rapid and effective pyrolysis reaction. During the pyrolysis process The method of directional production of high-yield biomass charcoal, high-performance biomass oil and biomass gas is promoted by adding catalysts, and the method is simple, efficient and environmentally friendly with high resource utilization rate. The present invention is realized through the following technical solutions

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  • Method for directionally producing biomass charcoal, biomass oil and biomass gas through microwave catalytic pyrolysis of biomass
  • Method for directionally producing biomass charcoal, biomass oil and biomass gas through microwave catalytic pyrolysis of biomass
  • Method for directionally producing biomass charcoal, biomass oil and biomass gas through microwave catalytic pyrolysis of biomass

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Embodiment 1

[0032] The specific steps of the method for directional production of biomass charcoal, biomass oil and biomass gas by utilizing microwave catalytic pyrolysis of biomass are as follows:

[0033] Step 1, first remove impurities, crush and dry the biomass of Eupatorium adenophorum to obtain biomass particles with a particle size of 3-10mm, add the catalyst according to the mass ratio of biomass to anhydrous sodium carbonate catalyst of 10:0.5 and Mix evenly, then heat to 500°C at a heating rate of 30°C / min and perform pyrolysis in a microwave reactor for 30 minutes to obtain gas products and solid products;

[0034]Step 2. Quickly condense the gas product obtained in step 1 at -5°C, and the condensable part is directly condensed into liquid high-quality biomass oil, and the non-condensable gas is a high calorific value gas fuel, and the gas and liquid products are detected Analysis, detection result is as shown in table 1;

[0035] Step 3, take out the solid product obtained in...

Embodiment 2

[0040] The specific steps of the method for directional production of biomass charcoal, biomass oil and biomass gas by utilizing microwave catalytic pyrolysis of biomass are as follows:

[0041] Step 1, first remove impurities, crush and dry the biomass of Eupatorium adenophorum to obtain biomass particles with a particle size of 3 to 10 mm, add the catalyst according to the mass ratio of biomass to anhydrous potassium carbonate catalyst of 10:1 and Mix evenly, then heat to 600°C at a heating rate of 40°C / min, and perform pyrolysis in a microwave reactor for 60 minutes to obtain gas products and solid products;

[0042] Step 2. Quickly condense the gas product obtained in step 1 at 8°C, and the condensable part is directly condensed into a liquid-phase high-quality biomass oil, and the non-condensable gas is a high calorific value gas fuel, and the gas and liquid products are detected and analyzed , the test results are shown in Table 2;

[0043] Step 3. Cool the solid produc...

Embodiment 3

[0048] The specific steps of the method for directional production of biomass charcoal, biomass oil and biomass gas by utilizing microwave catalytic pyrolysis of biomass are as follows:

[0049] Step 1. First remove impurities, crush and dry the biomass of Eupatorium adenophorum to obtain biomass particles with a particle size of 3-10 mm. Add the catalyst according to the mass ratio of biomass to alumina catalyst of 10:2 and mix evenly , and then heated to 700°C at a heating rate of 50°C / min to perform pyrolysis in a microwave reactor for 40min to obtain gas products and solid products;

[0050] Step 2. Quickly condense the gaseous product obtained in step 1 at 10°C, and the condensable part is directly condensed into a liquid-phase high-quality biomass oil, and the non-condensable gas is a high-calorific value gas fuel, and the gas and liquid products are detected and analyzed , the test results are shown in Table 3;

[0051] Step 3. Cool the solid product obtained in step 1...

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Abstract

The invention relates to a method for directionally producing biomass charcoal, biomass oil and biomass gas through microwave catalytic pyrolysis of biomass, and belongs to the technical field of biomass energy utilization. According to the method, firstly, the biomass is subjected to impurity removal, crushing and drying, added with a catalyst and uniformly mixed, and a gaseous product and a solid product are obtained through microwave pyrolysis; and the obtained gaseous product is rapidly condensed, a condensable part is directly condensed to form liquid-phase high-quality biomass oil, non-condensable gas is high calorific value gas fuel, the obtained solid product is taken out after cooled to the room temperature with a furnace, and high-yield biomass charcoal is obtained. The high-yield biomass charcoal is taken as a raw material for producing activated carbon or fuel to be directly used. The method is simple, efficient and environment-friendly, and the resource utilization rate is high.

Description

technical field [0001] The invention relates to a method for directional production of biomass charcoal, biomass oil and biomass gas by using microwave catalytic pyrolysis of biomass, and belongs to the technical field of biomass energy utilization. Background technique [0002] Biomass energy is an important source of energy for human survival, second only to coal, oil and natural gas, and ranks fourth in the world's total energy consumption, occupying an important position in the entire energy system. Based on the current situation that my country's biomass resources are very rich, it is of great significance to convert biomass with high cellulose, hemicellulose, and lignin into energy products such as biochar, biomass gas, and biomass oil through pyrolysis and other methods. Practical significance. Therefore, it is very necessary to strengthen the comprehensive utilization of biomass resources and produce high value-added products to make effective use of biomass resource...

Claims

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Application Information

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IPC IPC(8): C10B53/02C10B57/06C10G1/00
CPCC10B53/02C10B57/06C10G1/00C10G2300/1011Y02E50/10
Inventor 夏洪应郑照强彭金辉张利波王仕兴周俊文刘秉国郭胜惠许磊
Owner KUNMING UNIV OF SCI & TECH
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