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Method for comprehensively generating biomass charcoal and pyroligneous by biomass pyrolysis

A technology of biomass charcoal and wood vinegar, which is applied in the chemical field, can solve the problems of waste of biomass raw materials and gas treatment, and achieve huge economic benefits

Inactive Publication Date: 2017-06-13
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the current methods for preparing biochar do not treat the gas generated in the process of preparing biochar, resulting in waste of biomass raw materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Step 1, crushing 100 kg of biomass raw materials into particles with a particle diameter of 0.1-2 mm to obtain granular biomass raw materials. In this embodiment, the biomass raw material is Chinese fir chips, and the particle size of the particles is 1mm.

[0016] Step 2, putting the granular biomass raw material into a molding machine for molding to obtain cylindrical biomass with a diameter of 60 mm and a length of 100 mm. In this embodiment, the cylindrical molding machine is used. In actual production applications, molding machines of other specifications can be used according to production needs.

[0017] Step 3: Put the cylindrical biomass into a reactor at 70° C. and keep the temperature constant for 30 minutes. The reactor can be a charcoal kiln or a fixed pyrolysis reactor. In this example, the reactor is a stationary pyrolysis reactor.

[0018] Step 4, vacuumize the fixed pyrolysis reactor for 30-60 minutes. In this embodiment, the constant temperature tim...

Embodiment 2

[0025] Step 1, crushing 100 kg of biomass raw materials into particles with a particle diameter of 0.1-2 mm to obtain granular biomass raw materials. In this embodiment, the biomass raw material is Chinese fir chips, and the particle size of the particles is 1 mm.

[0026] Step 2, putting the granular biomass raw material into a molding machine for molding to obtain cylindrical biomass with a diameter of 60 mm and a length of 100 mm. In this embodiment, the cylindrical molding machine is used. In actual production applications, molding machines of other specifications can be used according to production needs.

[0027] Step 3: Put the cylindrical biomass into a reactor at 70° C. and keep the temperature constant for 30 minutes. The reactor can be a charcoal kiln or a fixed pyrolysis reactor. In this example, the reactor is a stationary pyrolysis reactor.

[0028] Step 4, vacuumize the fixed pyrolysis reactor for 30-60 minutes. In this embodiment, the constant temperature ti...

Embodiment 3

[0035] Step 1, crushing 100 kg of biomass raw materials into particles with a particle diameter of 0.1-2 mm to obtain granular biomass raw materials. In this embodiment, the biomass raw material is Chinese fir chips, and the particle size of the particles is 1mm.

[0036] Step 2, putting the granular biomass raw material into a molding machine for molding to obtain cylindrical biomass with a diameter of 60 mm and a length of 100 mm. In this embodiment, the cylindrical molding machine is used. In actual production applications, molding machines of other specifications can be used according to production needs.

[0037] Step 3: Put the cylindrical biomass into a reactor at 70° C. and keep the temperature constant for 30 minutes. The reactor can be a charcoal kiln or a fixed pyrolysis reactor. In this example, the reactor is a stationary pyrolysis reactor.

[0038] Step 4, vacuumize the fixed pyrolysis reactor for 30-60 minutes. In this embodiment, the constant temperature tim...

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Abstract

The invention provides a method for comprehensively generating biomass charcoal and pyroligneous by biomass pyrolysis, wherein the method includes steps of step one, smashing biomass raw materials to be grains; step two, placing granular biomass raw materials in a shaping machine to shape, and acquiring the shaping biomass; step three, putting the shaping biomass in a reactor at 70 DEG C and sealing the biomass at constant temperature for 30 min; step four, vacuumizing the reactor for 30-60 min; step five, filling nitrogen or inert gas in the reactor, and removing oxygen in the reactor; step six, heating up the reactor to 600 DEG C at the heating rate of 5-10 DEG C in an inertia atmosphere, and acquiring the biomass charcoal; step seven, not collecting gas generated from the reactor when the temperature of the reactor is 70-200 DEG C in heating process; when the reactor temperature is 200-450 DEG C, collecting gas generated in the reactor; when the reactor temperature is 450-600 DEG C, not collecting gas generated from the reactor; step eight, condensing the collected gas and acquiring the pyroligneous.

Description

technical field [0001] The invention relates to the field of chemistry, in particular to a method for comprehensively producing biomass charcoal and wood vinegar by pyrolyzing biomass. Background technique [0002] my country is a traditional large country of wood charcoal production. In recent years, due to the country's great emphasis on environmental protection, governments at all levels have strengthened the management of closing mountains for afforestation, and the production of wood charcoal from trees has plummeted, and will eventually be exhausted. As a renewable resource, biomass energy is renewable, clean and low-pollution, CO 2 With the advantages of zero emission and rich resources, using biomass resources to produce biomass shaped charcoal to replace wood charcoal produced by trees is a supplement to carbonization resources, which can receive double benefits of protecting the ecological environment and saving energy. [0003] However, most of the current method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/02C10C5/00
CPCC10B53/02C10C5/00Y02E50/10
Inventor 张守玉王才威吴顺延李昊江锋浩张一帆
Owner UNIV OF SHANGHAI FOR SCI & TECH
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