Biomass fuel gas gas-making method by dry method

A technology of biomass gas and biomass materials, which is applied in the direction of biofuel, special dry distillation, petroleum industry, etc., can solve the problems of reducing purification efficiency, clogging the stove hole, and small gap between fan blades, achieving beautiful appearance and lightening The effect of labor intensity

Inactive Publication Date: 2008-10-15
陈天祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] 1. The high-temperature zone of the gasifier is in the middle and lower part. Under the condition of negative pressure operation, there is no effective cooling technology to ensure that the furnace grate will often be deformed when the continuous gas production exceeds 3-5 hours, so it cannot Ensure normal gas supply
[0013] 2. During the operation of the purifier (I), some dust and tar are condensed together with the filler in the purifier. If the filler is not replaced frequently, the purification efficiency will be reduced, and it is difficult to replace the purified material once; the filter (II) also has the same problem
It is only the difference in labor intensity during replacement, which causes unstable temperament
[0014] 3. In the case of problem (2), the tar content of the gas passing through the Roots blower is not stable. In addition, the gap between the fan blades is

Method used

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  • Biomass fuel gas gas-making method by dry method
  • Biomass fuel gas gas-making method by dry method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The present invention it comprises the steps:

[0055] 1. Preparation

[0056] Use bulk biomass materials;

[0057] 2. Feeding

[0058] Biomass materials are added to the biomass gas gas furnace;

[0059] 3. Gas production

[0060] The gas-making raw materials are added to the biomass gas gas-making furnace and undergo thermal reaction to generate mixed gas, which enters the dust removal system through the gas outlet (11);

[0061] 4. Dust removal

[0062] Under the action of cyclone dust removal, 50% of the ash in the mixed gas is removed to obtain gas, and the removed ash enters the ash storage box (6);

[0063] The gas continues to be purified through the purification tower to obtain finished gas;

[0064] 5. Heat exchange

[0065] The finished gas enters the condenser (12) for heat exchange so that the gas temperature at the outlet of the condenser (12) is 35°C; the condensed water, tar and clean finished gas enter the gas-liquid separation tower (14); label ...

Embodiment 2

[0074] The present invention it comprises the steps:

[0075] 1. Preparation

[0076] Use bulk biomass materials;

[0077] 2. Feeding

[0078] Biomass materials are added to the biomass gas gas furnace;

[0079] 3. Gas production

[0080] The gas-making raw materials are added to the biomass gas gas-making furnace and undergo thermal reaction to generate mixed gas, which enters the dust removal system through the gas outlet (11);

[0081] 4. Dust removal

[0082] Under the effect of cyclone dust removal, 60% of the ash in the mixed gas is removed to obtain gas, and the removed ash enters the ash storage box (6);

[0083] The gas continues to be purified through the purification tower to obtain finished gas;

[0084] 5. Heat exchange

[0085] The finished gas enters the condenser (12) for heat exchange so that the outlet gas temperature of the condenser (12) is 38°C; the condensed water, tar and clean finished gas enter the gas-liquid separation tower (14);

[0086] 6. ...

Embodiment 3

[0094] The present invention comprises the steps:

[0095] 1. Preparation

[0096] Use bulk biomass materials;

[0097] 2. Feeding

[0098] Biomass materials are added to the biomass gas gas furnace;

[0099] 3. Gas production

[0100] The gas-making raw materials are added to the biomass gas gas-making furnace and undergo thermal reaction to generate mixed gas, which enters the dust removal system through the gas outlet (11);

[0101] 4. Dust removal

[0102] Under the action of cyclone dust removal, 70% of the ash in the mixed gas is removed to obtain gas, and the removed ash enters the ash storage box (6);

[0103] The gas continues to be purified through the purification tower to obtain finished gas;

[0104] 5. Heat exchange

[0105] The finished gas enters the condenser (12) for heat exchange so that the gas temperature at the outlet of the condenser (12) is 40°C; the condensed water, tar and clean finished gas enter the gas-liquid separation tower (14);

[0106]...

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Abstract

The invention discloses a dry method for making biomass gas, comprising the following steps of preparing material, loading material, making gas, removing dust, exchanging heat, separating gas, oil and water, decoking with an electric tar precipitator and refining gas. The method has the following advantages that: firstly, a machine set of the invention has no sewage; secondly, the whole machine set cannot cause production stop phenomenon because of pipeline blockage during operation, which can greatly reduce the labor intensity of operators; thirdly, high-quality gas can be produced, which has the tar content not more than 10mg/Nm<3> (the national standard is that the tar content of biomass gas is not more than 50mg/Nm<3>); fourthly, the novel (dry method) biomass gas making machine set can be used in matching with a novel structure gas making furnace (with the gas production rate between 500 and 3000 Nm<3> per hour); and fifthly, centralized gas supply can be expanded into a wider range.

Description

technical field [0001] The invention relates to a method for gas production with gas, in particular to a method for gas production with dry biomass gas. Background technique [0002] At present, there is a shortage of energy at home and abroad, and China has leapt to the second largest energy consumption country in the world. How to develop new energy has become a key issue in China and even the world's scientific and technological circles. [0003] The inventor has been engaged in the development and research of straw biomass gas technology for a long time. In 1998, he designed the JMQ straw gasification unit. The first unit was installed in Qiuhuazhuang Village, High-tech Zone, Jiaozuo City, Henan Province. Its technological process is as follows: [0004] The material is fed by the screw conveyor, and the gasification reaction is carried out by anoxic combustion in the gasifier. The dust is removed by the cyclone, the gas is purified by the purifier, the gas is cooled b...

Claims

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Application Information

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IPC IPC(8): C10B53/02
CPCY02E50/14Y02E50/10
Inventor 陈天祥
Owner 陈天祥
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