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Method for manufacturing fuel through straw quick thermal cracking and fuel product thereof

A thermal cracking and fuel technology, applied in the field of straw thermal cracking, can solve problems such as immaturity, and achieve the effects of low production cost, good control of rapid thermal cracking conditions, and strong safety.

Inactive Publication Date: 2009-12-16
BEIJING YIMINBAO ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] To sum up, the current technology of rapid pyrolysis of biomass to produce biomass liquid fuel is still immature.

Method used

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  • Method for manufacturing fuel through straw quick thermal cracking and fuel product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1. A method for fast pyrolysis of straw to produce fuel, such as figure 1 shown. It includes the following steps:

[0027] 1. Crushing of straw materials; 2. Drying of crushed materials; 3. Thermal cracking of dry materials; 4. Sending thermal cracking products to cyclone dust collectors to separate gas and solids; 5. Solids obtained by cyclone dust removal Biomass charcoal is condensed and sent to mixing and grinding step 9; 6. The gas obtained by cyclone dust removal is rectified and washed, and the gaseous biomass oil obtained by rectification and washing is sent to step 7 for condensation, and the tower bottom heavy biomass obtained by rectification and washing is Substance oil and solid biomass charcoal are sent to mixing and grinding step 9, and the low boiling point biomass oil obtained by rectification and washing is sent to collection step 8; 7. Condensation of gaseous biomass oil; 8. Collection of low boiling point biomass oil; 9. Mix and grind the ...

Embodiment 2

[0030] Example 2. The utility model relates to a fuel product produced according to the method for producing fuel by rapid pyrolysis of straw. The proportion of the fuel product is 30% of biochar, 15% of heavy biomass oil, 0.2% of surfactant, and the rest is water. The particle size of biochar after grinding is ≤10μm.

Embodiment 3

[0031] Example 3. The utility model relates to a fuel product produced according to the method for producing fuel by rapid pyrolysis of straw. The proportion of the fuel product is 60% of biochar, 2% of heavy biomass oil, 1% of surfactant, and the rest is water. The particle size of biochar after grinding is ≤10μm.

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Abstract

The invention relates to a method for manufacturing fuel through straw quick thermal cracking and a fuel product thereof. The method comprises the following steps: crushing straw materials; drying the crushed materials; carrying out thermal cracking of the dried materials; completing gas-solid separation of the thermal cracking products; condensing gaseous biomass oil; collecting low-boiling point biomass oil; and mixing and grinding biomass carbon obtained after gas-solid separation, condensed biomass oil, water and surfactant. The fuel product comprises the following components in percentage: 30 to 60 percent of the biomass carbon, 2 to 15 percent of the heavy biomass oil, 0.2 to 1 percent of the surfactant, and the balance of water. The method converts straw through quick thermal cracking and makes straw into the novel fuel product of the biomass oil, the biological carbon and the water; moreover, the method has the advantages of lower production cost, higher yield of biomass fuel and better control of quick thermal cracking conditions. The fuel product has the advantages that the product has high thermal value and low sulphur content and does not block up pipelines and burner nozzles frequently during combustion; moreover, the product has stable performance and is convenient for transportation and storage. Therefore, the fuel product can be widely used in thermal power plants, heating boiler rooms, and the like.

Description

technical field [0001] The invention belongs to the technical field of straw pyrolysis, and more specifically relates to a method for producing fuel by fast pyrolysis of straw and the innovation of the fuel product. Background technique [0002] Bioenergy refers to the energy obtained from biomass. It is a renewable and environmentally friendly energy source. The carbon element of its energy carrier comes from CO in the atmosphere. 2 , after combustion or cracking, CO 2 The form returns to the atmosphere, thus constituting the ecological cycle chain of carbon. Bioenergy, as a renewable energy, plays an increasingly important role in the energy structure. Biomass rapid pyrolysis technology is one of the keys. [0003] Biomass pyrolysis refers to the thermal degradation of biomass under the condition of complete anoxic or limited oxygen supply, and finally produces char, condensable gas (biofuel) and combustible gas (non-condensable). Biomass pyrolysis is a complex thermoc...

Claims

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Application Information

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IPC IPC(8): C10B53/02C10L1/32C10K1/04C10K1/08
CPCY02E50/14Y02E50/10
Inventor 丁赤民李建隆
Owner BEIJING YIMINBAO ENERGY TECH CO LTD
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