Preparation method of biomass particle carbon

Abstract

The invention relates to the technical field of biomass fuel and aims at providing a preparation method of biomass particle carbon with a high calorific value and a low clinkering rate. The preparation method of the biomass particle carbon is characterized by comprising the following steps of: raw material pretreatment, extrusion forming and carbonization refining, wherein the carbonization refining is to heat a biomass particle after the extrusion forming under an air isolated condition, carbonize the biomass particle and remove impurities such as sulfide in the biomass particle; the biomass particle carbon comprises the following raw materials in parts by weight: 20-30 parts of crop straw, 10-20 parts of bagasse, 30-40 parts of bamboo scrap, 80-90 parts of wood chip, 4-5 parts of flame accelerator, and 3-4 parts of anti-slagging agent. The biomass particle carbon prepared by the method has the high calorific value and the low clinkering rate.

Description

technical field [0001] The invention relates to the technical field of biomass fuel, in particular to a preparation method of biomass granular carbon. Background technique [0002] The rapid economic development is inseparable from energy, and the shortage of traditional fossil energy oil, natural gas and coal is becoming more and more serious. Biomass energy, as the fourth largest energy source, has become an energy source with great development potential among new energy sources due to its renewable and zero-carbon emission characteristics. Bamboo chips, wood chips, bagasse, etc., which are usually discarded during processing, can be used as raw materials for biomass pellet fuel, which can be further compressed to become an efficient carbon source. [0003] However, due to the high content of alkali metal elements inherent in biomass materials, the current biomass pellet fuel has the defect of high combustion slagging rate, which not only greatly reduces the combustion ef...

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Problems solved by technology

[0003] However, due to the high content of alkali metal elements inherent in biomass materials, the current biomass pellet fuel has the defect of high combustion slagging rate, which not only greatly reduces the combustion efficiency, but also causes serious corrosion to combustion equipment and reduces combustion efficiency. The performance and service life of the equipment are not conducive to the promotion and utilization of biomass pellet fuel

[0004] In addition, the existing biomass pellet fuels mostly use straw as the main component, resulting in the production of biomass pellet fuels with disadvantages such as low calorific value and short burning time, which are difficult to meet the needs of the existing market; while biomass pellets produced using wood chips Although the fuel has a high calorific value, its heat release temperature is often higher than that of biomass pellet fuel with straw as the main component, which makes it difficult to ignite and incomplete combustion, and cannot fully utilize the advantages of its high calorific value.