Continuous biomass pyrolytic carbon gas-oil poly-generation system

Abstract

The invention discloses a continuous biomass pyrolytic carbon gas-oil poly-generation system. The continuous biomass pyrolytic carbon gas-oil poly-generation system comprises a pyrolysis unit, a condensation unit, a purifying unit, a gas storage unit and a heating unit, wherein the pyrolysis unit is connected with the condensation unit and the heating unit; the gas storage unit is connected with the purifying unit and the heating unit respectively; the condensation unit is connected with a gas storage unit pipeline by the purifying unit; high-temperature smoke gas is generated by the heating unit; the pyrolysis unit performs thermal conversion from biomass into a carbon gas oil product by heat energy generated by high-speed scouring of high-temperature smoke gas and coke is separately stored; bio-oil and gas are separated from carbon gas oil by the condensation unit; impurities in the fuel gas are removed by the purifying unit; and the gas subjected to the impurity removal is stored by the gas storage unit. With the adoption of the continuous biomass pyrolytic carbon gas-oil poly-generation system, targets of continuously producing biogas, a biological coke and bio-oil are realized, so that the product quality is stable, and the application prospect is wide.

Description

technical field [0001] The invention relates to a biomass pyrolysis polygeneration system, which is suitable for continuously converting biomass into high-value products such as charcoal, gas and oil. Background technique [0002] The important task of new rural construction is the construction of new rural energy system, and the comprehensive and efficient utilization of abundant biomass resources in rural areas is one of the important means to accomplish this task. Modern biomass utilization technologies, such as combustion power generation, gasification power generation or gas production, have been utilized in rural areas, but the unique defects of biomass resources - wide distribution of resources, low energy density, and difficulty in collection have led to the current use of a single product Biomass utilization technology based on large-scale operation is difficult to meet the requirements of new rural energy construction. Biomass polygeneration technology can produce...

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Problems solved by technology

[0004] However, there are some deficiencies in the fixed bed retort technology: batch production, the heat absorption, decomposition and cooling of materials placed in the retort are all completed in the fixed bed, and it takes a long time from heating up, gas preparation to coke cooling Running time; uneven heating, to ensure the supply of gas during the running time, the retort has a larger diameter, and it takes a long time for the heat to transfer from the furnace wall to the center of the furnace, the biomass raw material is not heated uniformly, and the degree of pyrolysis is not First, the quality of coke products is different; the quality of gas is not high, and a large amount of carbon monoxide will be produced during the pyrolysis process of biomass, the general content will reach 15%, which will bring potential safety risks to gas users; there is a risk of secondary pollution, Intermittent production leads to the production of wood vinegar and wood tar that cannot meet the requirements of deep processing plants. Without effective treatment, it will inevitably form liquid products that will pollute rural areas. In addition, in the initial stage of system operation, a large amount of carbon dioxide and carbon monoxide will be directly emitted. empty, there is a possibility of air pollution

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