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Biomass carbonization device and biochar preparation process

A biomass charcoal and preparation process technology, applied in the fields of biofuel, petroleum industry, special forms of dry distillation, etc., can solve the problems of poor continuous dry distillation effect and poor quality of dry distillation products, avoid high content of harmful components, realize automation and simplification The effect of the process

Inactive Publication Date: 2018-03-13
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the feeding method of the existing biomass carbonization device is bulk feeding, the effect of continuous carbonization is poor, and the quality of carbonization products is poor

Method used

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  • Biomass carbonization device and biochar preparation process

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Embodiment 1

[0041] This embodiment provides a biomass carbonization device, such as figure 1 As shown, including: for briquetting biomass, a biomass briquette system for obtaining biomass briquettes, a biomass briquette carbonization system for carbonizing biomass briquettes, and a biomass briquette carbonization system for briquetting biomass The briquettes are conveyed from the biomass briquette system to the biomass briquette delivery system of the biomass briquette carbonization system.

[0042] The biomass briquetting system includes: a loading unit, a briquetting unit and at least one first feeding unit; the first feeding unit is located above the loading unit, and the loading unit rotates the loaded first feeding unit The material unit is sent to the briquetting unit for biomass briquetting.

[0043] As an embodiment of the present invention, specifically, the loading unit includes: a rotary table 15 arranged on the base 11, a drive shaft 16 arranged at the rotation center of the ...

Embodiment 2

[0065] This embodiment provides a method for preparing biochar using the biomass carbonization device described in Embodiment 1, comprising the following steps:

[0066] S1. Load the dried biomass with a moisture content of 8% to 20% and a temperature of 25° C. to 100° C. into the mold sleeve 12 on the rotary table 15 . As an embodiment of the present invention, in this embodiment, the moisture content of the biomass block is 15%, and the temperature is 60°C.

[0067] S2. The rotary table 15 is rotated, and the mold sleeve 12 containing the biomass material is sent to the position of the pressing part 19 for stamping, the pressure is 5Mpa-40Mpa, and the pressing speed is 0.1t / h-2t / h; After the specified pressure is reached and the stroke of the pressurizing part 19 remains unchanged, the pressure is maintained for 10s-60s. As an embodiment of the present invention, in this embodiment, the stamping pressure is 20 MPa, the pressing speed is 1 t / h, and the holding time is 35 s. ...

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Abstract

The invention relates to the field of comprehensive utilization of biomass energy, and discloses a biomass carbonization device and a biochar preparation process. The biomass carbonization device comprises a biomass briquetting system used for pressing biomass to obtain biomass briquettes; a biomass briquette carbonization system used for carbonizing the biomass briquettes; and a biomass briquetteconveying system used for conveying the biomass briquettes from the biomass briquetting system to the biomass briquette carbonization system. According to the invention, through the biomass carbonization device, intermittent feeding, continuous briquetting, continuous carbonization, and continuous material discharging of the biomass are realized, and the large-scale production intensity is high;furthermore, a waste flue gas with a certain amount of heat is adopted to provide heat for carbonization, so that the energy consumption in the carbonization process is significantly reduced; and anaerobic carbonization avoids destruction of organic matter in carbon powder due to a high temperature of direct combustion.

Description

technical field [0001] The invention relates to the field of biomass energy utilization, in particular to a biomass carbonization device and a biochar preparation process. Background technique [0002] Biomass is recognized as one of the most potential non-traditional fossil resources in the world, and it is the fourth largest energy after coal, oil, and natural gas. 14% of the world's energy demand comes from biomass energy, and the proportion in developing countries It is as high as 35%. Biomass energy has become a major development and utilization direction of my country's energy sustainable development because of its renewable, resource-rich and ecologically friendly characteristics. [0003] Biomass dry distillation technology is a method of thermally decomposing biomass to obtain a variety of dry distillation products in the absence of oxygen or only providing extremely limited oxygen. The early biomass carbonization and pyrolysis production mostly used batch operati...

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 杜明来林科
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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