Biomass charcoal

A technology of biochar and stipa, applied in the field of straw application, can solve the problems of straw pollution, waste of biomass resources, pollution of the environment, etc., and achieve the effect of improving the material structure, promoting nutrient transfer, and increasing the formation of micropores

Inactive Publication Date: 2017-10-17
安徽省宗正农业科技开发股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although biomass resources are abundant, the waste of biomass resources is serious due to the backward preservation and transformation technology. my country is a country with a large output of straw. The pollution of crop straw has always been a bottleneck that plagues agricultural development. Agricultural waste such as straw is burned in the field. , the wood chips and sawdust produced by forestry product processing are directly discarded, and the shells and skins of food processing are treated as landfill, which not only pollutes the environment, but also causes a huge waste of biomass resources

Method used

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  • Biomass charcoal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of biochar, which is made by mixing corn stalks, wheat straw, cotton stalks and stipa; specifically: mixing corn stalks, wheat stalks, cotton stalks and stipa in a mass ratio of 8:6:5:1 Dry at 100°C, and then pulverize to obtain mixed powder. The mixed powder is treated with low-temperature plasma, and then added to the pyrolysis furnace, and argon gas is introduced to remove the oxygen in the pyrolysis furnace. The temperature is rapidly heated to 102°C, kept for 5 minutes, then raised to 360°C at a rate of 1°C / min, kept at a temperature of 20 minutes, then raised to 580-586°C at a rate of 2°C / min, carried out multi-stage heat preservation, and finally cooled naturally To room temperature, collect biochar, and that's it.

[0017] Said drying at 100°C, specifically until the total moisture content is lower than 1.5%, and the drying time is longer than 1 hour.

[0018] The crushing process is specifically crushed to a particle size of 20 mesh.

[0019] The low-t...

Embodiment 2

[0025] A kind of biochar, which is made by mixing corn stalks, wheat straws, cotton stalks and stipa; specifically: mixing corn stalks, wheat stalks, cotton stalks and stiga in a mass ratio of 10: 8: 8: 2 Dry at 102°C, and then pulverize to obtain mixed powder, which is treated with low-temperature plasma, then added to the pyrolysis furnace, and argon gas is introduced to remove the oxygen in the pyrolysis furnace. The temperature is rapidly heated to 105°C, kept for 5-8 minutes, then raised to 364°C at a rate of 1°C / min, kept at a temperature of 25 minutes, and then raised to 580-586°C at a rate of 2°C / min. Naturally cool to room temperature and collect biochar.

[0026] Said drying at 102°C, specifically until the total water content is lower than 1.5%, and the drying time is longer than 1 hour.

[0027] The crushing process is specifically crushed to a particle size of 30 mesh.

[0028] The low-temperature plasma treatment specifically includes: adding the mixed powder i...

Embodiment 3

[0034] A kind of biochar, which is made by mixing corn stalks, wheat straw, cotton stalks and stipa; specifically: mixing corn stalks, wheat stalks, cotton stalks and stipa in a mass ratio of 9:7:6:1.5 Dry at 101°C, and then pulverize to obtain mixed powder. Treat the mixed powder with low-temperature plasma, then add it to the pyrolysis furnace, pass in argon gas, and remove the oxygen in the pyrolysis furnace. The temperature is rapidly heated to 103°C, held for 6 minutes, then raised to 362°C at a rate of 1°C / min, held for 22 minutes, and then raised to 580-586°C at a rate of 2°C / min, carried out multi-stage heat preservation, and finally cooled naturally To room temperature, collect biochar, and that's it.

[0035] Said drying at 101°C, specifically until the total water content is lower than 1.5%, and the drying time is greater than 1 hour.

[0036] The crushing process is specifically crushed to a particle size of 25 mesh.

[0037] The low-temperature plasma treatment ...

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Abstract

The invention discloses biomass charcoal and relates to the technical field of straw application. The biomass charcoal is prepared from corn straw, wheat straw, cotton straw and stipa capillata in a mixing manner. The biomass charcoal disclosed by the invention is not only high in biomass charcoal yield and good in repairing effect on soil, but also capable of promoting absorption of fertilizer nutrients by crops, crop growth can be promoted, and the yield can be increased.

Description

technical field [0001] The invention belongs to the technical field of straw application, and in particular relates to a kind of biomass charcoal. Background technique [0002] The massive exploitation of human beings has led to a sharp decline in the reserves of traditional activated carbon raw materials such as coal and petroleum coke, and the world is facing an energy and environmental crisis. Therefore, it is necessary to seek a green, low-cost, high-efficiency and sustainable new energy source to meet the huge demand for energy. Due to the characteristics of non-polluting, high reserves, and renewable characteristics, biochar prepared from biomass has become one of the most promising new materials and new energy sources. Although biomass resources are abundant, the waste of biomass resources is serious due to the backward preservation and transformation technology. my country is a country with a large output of straw. The pollution of crop straw has always been a bottl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/02
CPCC10B53/02Y02E50/10
Inventor 王宗正
Owner 安徽省宗正农业科技开发股份有限公司
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