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Biomass micro powder atomizing pyrolysis system and method

A biomass and micropowder technology, used in granular/powder fuel gasification, petroleum industry, and the manufacture of combustible gas, etc., can solve the problems of low energy utilization efficiency, environmental pollution, waste of biomass energy, etc., to increase equipment investment and Operating cost, promotion of adequate response, and economical effects

Inactive Publication Date: 2015-11-11
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, although the method of biomass direct combustion is simple and practical, its energy utilization efficiency is far lower than other methods, which will not only cause waste of biomass energy, but also pollute the environment; Biomass is turned into small particles and pressed into a physical process of a certain shape; biomass gasification is to gasify biomass into biomass gas under certain process conditions, and at the same time by-product charcoal; biomass liquefaction is Biomass is pyrolyzed under certain conditions to obtain liquid products, which can be used as raw materials for the production of clean fuels or chemicals

Method used

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  • Biomass micro powder atomizing pyrolysis system and method
  • Biomass micro powder atomizing pyrolysis system and method
  • Biomass micro powder atomizing pyrolysis system and method

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Such as figure 1 As shown, a biomass micropowder haze pyrolysis system includes a venturi 1, a preheater 2, a pyrolysis furnace 3, and a gas purification device 5 connected in sequence. The inlet of the pyrolysis furnace 3 is connected with an atomizer 4, An electric heater 6 is provided in the pyrolysis furnace 3.

[0032] Such as figure 1 As shown, a method for haze pyrolysis of micronized biomass includes:

[0033] A1. Continuously add lignite with a particle size of 1~2mm to Venturi 1 at a rate of 30kg / h;

[0034] A2. Air is used as a gasification agent to make it fully mixed with lignite through Venturi 1;

[0035] A3. Preheat the mixture to 200°C through the preheater 2 and enter the pyrolysis furnace 3;

[0036] A4. In the pyrolysis furnace 3, water mist is supplied through the atomizer 4, so that the mixture is mixed with the water mist to form a "haze";

[0037] A5. In the pyrolysis furnace 3, the "haze" is heated to 300°C by the heater 6, and the pyrolysis reaction occu...

Embodiment 2

[0040] Such as figure 2 As shown, the biomass micropowder haze pyrolysis system of this embodiment is basically the same as the previous example, except that an electric heater 6 is provided on the inlet flue of the pyrolysis furnace 3.

[0041] Such as figure 2 As shown, a method for haze pyrolysis of micronized biomass includes:

[0042] B1. Continuously add wood chips with a particle size of 4mm and a wet base moisture content of 40% to Venturi 1 at 30kg / h;

[0043] B2. Use oxygen as a gasification agent to fully mix with wood chips through Venturi 1;

[0044] B3. Preheat the mixture to 150°C through the preheater 2 and enter the pyrolysis furnace 3;

[0045] B4. In the pyrolysis furnace 3, water mist is supplied through the atomizer 4, so that the mixture is mixed with the water mist to form a "haze";

[0046] B5. In the pyrolysis furnace 3, the "haze" is heated to 650°C by the heater 6, and the pyrolysis reaction occurs under this temperature condition to produce crude fuel gas F,...

Embodiment 3

[0049] Such as image 3 As shown, the biomass micropowder haze pyrolysis system of this embodiment is basically the same as that of Embodiment 1, except that a gas heater 6 is provided on the outer wall of the pyrolysis furnace 3.

[0050] Such as image 3 As shown, a method for haze pyrolysis of micronized biomass includes:

[0051] C 1. Continuously add wood chips and lignite with a particle size of 6mm and a wet base moisture content of 40% to the Venturi (1) at a rate of 30kg / h;

[0052] C2, use CO 2 As a gasification agent, it is fully mixed with the mixture of wood chips and lignite through Venturi 1;

[0053] C3. Preheat the mixture to 170°C through the preheater 2 and enter the pyrolysis furnace 3;

[0054] C4. In the pyrolysis furnace 3, water mist is supplied through the atomizer 4, so that the mixture is mixed with the water mist to form a "haze";

[0055] C5. In the pyrolysis furnace 3, the "haze" is heated to 750°C by the heater 6, and the pyrolysis reaction occurs under thi...

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Abstract

The invention discloses a biomass micro powder atomizing pyrolysis system and a biomass micro powder atomizing pyrolysis method. The biomass micro powder atomizing pyrolysis system comprises a Venturi, a preheater, a pyrolysis furnace and a fuel gas purifying device which are sequentially connected, wherein the inlet of the pyrolysis furnace is connected with an atomizer; and the pyrolysis furnace is provided with a heater. The biomass micro powder atomizing pyrolysis system can realize direct pyrolysis on biomass micro powder; a drying process with high energy consumption is not required; equipment investment and operation cost of the process are greatly reduced; and economical efficiency of the process is improved.

Description

Technical field [0001] The present invention involves a biomass micro -haze thermal solution system and method, which specializes in the process of pouring biomass micro -powder in thermal solution of thermal solution and generating gas, liquid, and solid -phase products.This process uniformly mix biomass micro -powder and gasification agent through artificial haze, and regulates haze components by atomizer, that is, hydrocarbons., Celebrity and biomass are half -burnt. technical background [0002] Biomass is a renewable resource.It contains a variety of resources, such as straw in crops, various forests, the remaining waste after processing of agricultural and forestry products, algae in rivers and lakes, animal feces, urban domestic waste, and waste in biomass -related industries.EssenceGenerally speaking, biomass is the general term of the various organic resources of green creatures directly or indirectly. [0003] According to the incomplete statistics of scientists, the to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/46C10J3/84
Inventor 廖传华罗威李亚丽耿文华王重庆陈海军朱跃钊
Owner NANJING UNIV OF TECH
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