A biomass gasification system and method

A gasification system and biomass technology, applied in the field of biomass energy preparation, can solve problems such as low production efficiency and poor quality of gas produced by equipment, and achieve the effects of convenient operation, improved gasification effect, and avoidance of inhibition

Active Publication Date: 2022-04-01
HUAZHONG UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the technical problems of poor gas quality and low production efficiency in the biomass preparation process and equipment in the prior art

Method used

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  • A biomass gasification system and method
  • A biomass gasification system and method
  • A biomass gasification system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A biomass gasification system, the biomass gasification system comprising:

[0051] The first biomass gasifier A and the second biomass gasifier B connected by the gas reversing device 6;

[0052] The first biomass gasifier A and the second biomass gasifier B both include:

[0053] The feed chamber 1, regenerator 2 and combustion chamber 3 are manufactured separately from top to bottom, and are connected by a flange structure 4; The heat pipes 202 are airtightly arranged, and refractory cotton 203 is filled between the heat storage pipes 202, so as to ensure the heat insulation effect of the heat storage chamber 2. The biomass raw material undergoes a high-temperature gasification process in the heat storage pipes. The ash outlet 302 and the gas production outlet 303, the ash outlet 302 are arranged at the bottom of the combustion chamber 3, the flue gas outlet 101 and the gasification raw material inlet 102 are arranged in the feeding chamber 1, and the flue gas outle...

Embodiment 2

[0083] Using embodiment one figure 1 The device, under the condition of gasification temperature at 1035°C and ER value (that is, the ratio of the amount of air supplied by biomass gasification to the amount of air required for complete biomass combustion theory) is 0.2, 0.3, 0.4, 0.6, micron-sized sawdust Biomass gasification reaction is carried out separately as raw material.

[0084] Specific steps are as follows:

[0085] Step S1: First, preheat the combustion chamber to 250°C, connect the fuel delivery pipe 301, the ash discharge port 302 and the flue gas discharge port 101 of the first biomass gasifier A, Sawdust raw material at a rate of 18kg / h~30kg / h, air at a rate of 1.656m 3The rate of / h is transported to the combustion chamber 3 through the fuel delivery pipe for combustion. When the gasification temperature reaches 1035°C, the ash generated by the combustion is discharged from the ash discharge port 302, and the smoke generated is discharged from the smoke disch...

Embodiment 3

[0090] Using embodiment one figure 1 The device, under the conditions of gasification temperature of 941°C and ER value (that is, the ratio of the amount of air supplied by biomass gasification to the amount of air required for the complete combustion of biomass) of 0.2, 0.3, 0.4, and 0.6, micron-sized sawdust Biomass gasification reaction is carried out separately as raw material.

[0091] Specific steps are as follows:

[0092] Step S1: First, preheat the combustion chamber to 250°C, connect the fuel delivery pipe 301, the ash discharge port 302 and the flue gas discharge port 101 of the first biomass gasifier A, Sawdust raw material at a rate of 18kg / h~30kg / h, air at a rate of 1.656m 3 The rate of / h is transported to the combustion chamber 3 through the fuel delivery pipe for combustion and heat storage. When the gasification temperature reaches 1035°C, the ash generated by combustion is discharged from the ash discharge port 302, and the smoke generated is discharged fr...

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Abstract

The invention provides a biomass gasification system and a gasification method, comprising: a first biomass gasifier and a second biomass gasifier connected through a gas reversing device; a first biomass gasifier and a second biomass gasifier Biomass gasifiers all include: a combustion chamber and a regenerator connected together. The combustion chamber is provided with a fuel input pipe and an ash discharge port. Materials; the gas reversing device controls the heat supply reaction and the biomass gasification reaction to be carried out simultaneously and not in the same biomass gasification furnace. The beneficial effects of the system of the present invention are: effectively avoiding the inhibitory effect of the substances produced in the combustion process on the biomass gasification; ensuring the temperature stability in the biomass gasification process and improving the gasification efficiency of the biomass; The heat pipe can be heated evenly, and the gasification effect is improved; the three-way reversing valve is used to control the flow direction of raw materials, products and waste materials, so as to ensure the uninterrupted gasification of biomass.

Description

technical field [0001] The invention belongs to the field of biomass energy preparation, and in particular relates to a biomass gasification system and method. Background technique [0002] my country is a large energy consumption country. With the rapid growth of energy demand, fossil raw materials are becoming increasingly depleted. Extensive use of fossil fuels has caused a great waste of resources and caused serious environmental and ecological pollution. Therefore, there is an urgent need to develop clean renewable energy, and biomass energy, one of the renewable energy sources, is a clean energy that can be stored and transported. It has the advantages of wide distribution of resources and large storage capacity, so its development potential is huge. [0003] Biomass gasification technology is a thermochemical treatment technology that puts solid biomass into a gasification furnace for heating and converts it into combustible gas, which is used as fuel. The basic prin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10J3/04C10J3/20C10J3/30C10J3/72
CPCC10J3/04C10J3/20C10J3/30C10J3/723
Inventor 舒朝晖靳世平黄芬霞周伦祎朱孟祺彭元君安明明贾倩
Owner HUAZHONG UNIV OF SCI & TECH
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