Multilevel-control polyradical biomass-gasification energy regeneration system

A technology of renewable energy and free radicals, applied in the fields of biofuels, energy input, special forms of dry distillation, etc., can solve the problems of pollutant emissions, difficult to control pyrolysis reactions, and low carbon conversion efficiency.

Active Publication Date: 2009-09-02
浙江瑞拓展泰再生能源有限公司
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  • Application Information

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Problems solved by technology

[0024] The purpose of the present invention is to overcome the deficiencies and shortcomings of the prior art, such as difficult control of pyrolysis reaction, low carbon conversion efficiency, low efficiency of tar cracking and syngas reforming, to maximize the efficiency of biomass gasification, to completely crack tar, and to A wide range of biomass and carbon-containing raw materials are converted into high-grade pure gasification synthesis gas, creating conditions for the production of biomass gasification power generation, biomass hydrogen energy, and biomass green liquid fuels, and for the large-scale production of biomass energy Lay the foundation for commercial development and application, and at the same time completely solve the problem of possible pollutant discharge in the process of biomass gasification

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  • Multilevel-control polyradical biomass-gasification energy regeneration system

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Embodiment 1

[0053] The multi-stage controlled free radical biomass gasification renewable energy system can convert a wide range of biomass and carbonaceous raw materials, including energy crops, agricultural and forestry by-products and wastes, organic wastes, industrial and hazardous wastes, etc., into high-grade energy.

[0054] For solid materials with common characteristics, such as firewood, straw or municipal solid waste, the normal process sends the solid materials directly to the pretreatment device 4, and after being processed by the pretreatment device 4, enters the pyrolysis gasification unit 13 to complete pyrolysis and gasification , the residual carbon is completely gasified in the carbon conversion unit 15, the ash enters the melting unit 17 and is completely melted into a molten slurry, passes through the pressurized quencher 20, and is finally discharged in the form of solidified slag. The generated gas passes through the melting unit 17, the carbon conversion unit 15, the ...

Embodiment 2

[0057] This example comes from a 5MW biomass gasification power generation system, the feed amount is ~100 tons / day, and air is used as the working gas. The material source composition is complex with a calorific value of 13 ~ 16MJ / kg and a humidity of 35% ~ 45%. The biomass raw material is gasified and purified, and supplied to seven 750kW gas-fired generator sets.

[0058] The material will complete the drying process in the fully enclosed pretreatment device 4 until the humidity of the material is 200°C), and additional air needs to be input to participate in the reaction, sacrificing a part of the calorific value of the gasification synthesis gas, It accounts for about 8% of the total input energy of the material; the content of the vaporized water vapor in the product gas of pyrolysis gasification is about 30%, which seriously reduces the efficiency of tar cracking and syngas reforming; in the carbon conversion unit, In order to avoid high temperature agglomeration, melti...

Embodiment 3

[0066] The present invention is equipped with an advanced gasification control system, for each sub-step process of gasification, each interconnected independent reaction unit: pretreatment, pyrolysis, carbon conversion, ash melting, accelerated reaction of polyfree radicals, synthesis gas reforming, waste heat utilization , finely controlled and integrated one by one to achieve optimization. For the complexity of biomass material characteristics, the control system can automatically optimize operating parameters according to material characteristics and actual working conditions. Simultaneous operation also includes a gasification process simulator, which has a huge database of tens of thousands of various types of raw materials and related chemical reactions. The simulator's unique performance, predictive capabilities are used in conjunction with the control system. Higher-level, finer-grained, and more comprehensive control can be achieved.

[0067] The main gasification ...

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Abstract

The invention provides a multilevel-control free-polyradical biomass-gasification energy regeneration system, which can transform extensive biomass and carbon-containing raw materials, including energy crops, agriculture-forestry byproducts, organic waste, industrial and dangerous waste and the like, into high-grade energy. The system is designed for continuous operation. Gasification comprises the following steps of performing pretreatment, performing pyrolysis, transforming carbon, fusing ash, cracking tar, reforming syngas and utilizing waste heat, wherein the steps are precisely controlled one by one and integrated so as to achieve optimum; moisture from the pretreatment of the materials is led into a carbon-transforming unit so as to realize oxygen-free pyrolysis; gasification gas is in contact with a large number of free polyradicals in a free-polyradical reaction-accelerating unit; and the obtained product is purified and then enters downstream application, such as power generation, hydrogen production and biomass methanol / ethanol production. The system has the advantages of needing no auxiliary fuel, maximizing gasification efficiency and thoroughly cracking tar and clearing pollutants, and is an upstream technique for the application of biomass renewable energy. As energy utilization meets all strict environmental protection standards, the system is also an energy-saving environment-friendly technique for non-incineration harmless treatment.

Description

technical field [0001] The invention relates to a biomass gasification renewable energy system, in particular to a biomass gasification renewable energy system utilizing a free radical acceleration reaction device. Background technique [0002] Energy is the basis for the survival and development of modern society. The supply capacity of energy is closely related to the sustainable development of the national economy and is one of the foundations of national strategic security. China's current energy supply situation is grim, and the burden on environmental quality is heavy. Due to the dwindling reserves of fossil energy, large fluctuations in oil prices, concerns about energy security and global warming, the development of clean and renewable energy has become an urgent issue, and the new energy industry is showing high growth. According to the widely demonstrated industrial background and development overview of renewable energy, biomass gasification power generation repr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G57/00C10B53/02
CPCY02E50/14Y02E50/10Y02P20/129Y02P20/133
Inventor 刘兴业
Owner 浙江瑞拓展泰再生能源有限公司
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