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Method and apparatus for pyrolysis of biomass gas tar oil

A high-temperature pyrolysis and biomass gas technology, which is used in tar processing, cracking, petroleum industry and other directions by heat treatment method, can solve the problems that the gas purification effect is difficult to meet the actual use requirements, cannot be reused, and contains many impurities, and achieves the removal effect. Good, avoid secondary pollution, improve the effect of cracking rate

Inactive Publication Date: 2008-02-27
SHENGLI OIL FIELD SHENGLI POWER MACHINERY GRP
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Problems solved by technology

Generally, coarse filtration methods such as water washing and filtration are used, and the decoking rate is low, and the effect of gas purification is difficult to meet the actual use requirements.
In addition, the tar from the coarse filtration of the gas contains too many impurities and cannot be reused, which also brings secondary pollution to the environment.

Method used

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  • Method and apparatus for pyrolysis of biomass gas tar oil
  • Method and apparatus for pyrolysis of biomass gas tar oil

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Embodiment Construction

[0014] A high-temperature pyrolysis method for biomass gas tar, which mainly includes the steps of (A) gasification in a biomass gasifier; (B) washing and filtering, and (C) a high-temperature cracking step. (C) The high-temperature cracking step is performed in a dedicated In the high-temperature cracking device, the biomass gas discharged from steps (A) and (B) at a temperature of 250°C to 350°C enters a dedicated high-temperature cracking furnace 6, and undergoes a cracking reaction at a high temperature of 800°C to 1200°C. Generate low-carbon methane, ethane and ethylene combustible gases; the purified gas enters the user network for use.

[0015] During high temperature cracking in step (C), countercurrent catalytic cracking is carried out under the control of the electronically controlled high temperature reversing valve 3 in the device.

[0016] A biomass gas tar pyrolysis device, referring to Fig. 1-Fig. 2, includes a controller, an air intake pipe, a reversing valve, ...

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Abstract

The invention discloses a high temperature cracking method of biomass gas tar and device, which comprises the following steps: (A) gasifying biomass in gasification stove; (B) washing; filtering; (C) cracking under high temperature; leading the 250-350 deg. c biomass gas form the step (A) and (B) into private high temperature cracking oven; proceeding the cracking reaction with temperature at 800-1200 deg. c; generating marsh gas with low carbon, ethane and ethene combustible gas; purifying; entering into user net; setting the device as controller, air inlet pipe, change-over valve, flame couple, discharge pipe, cracking furnace and heater; setting the cracking furnace as triple-fired structure; setting the middle as high temperature heating segment; arranging the two sides as low temperature storing segment; assembling the change-over valve at the two ends of the cracking furnace; connecting the one end of the valve to the air inlet pipe; connecting the other end to the discharge pipe; assembling the flame couple on the discharge pipe and the change-over valve; electric-connecting to the controller.

Description

1. Technical field [0001] The invention relates to a device for cracking tar contained in combustible gas produced by biomass gasification or dry distillation, in particular to a high-temperature cracking method and device for biomass gas tar. 2. Background technology [0002] At present, the combustible gas produced by biomass gasification or dry distillation contains a large amount of tar, and the use of this type of gas is greatly limited due to the lack of effective and feasible removal methods. Generally, coarse filtration methods such as water washing and filtration are used, and the decoking rate is low, and the effect of gas purification is difficult to meet the actual use requirements. In addition, the tar from the coarse filtration of the gas contains too many impurities and cannot be reused, which also brings secondary pollution to the environment. 3. Contents of the invention [0003] The purpose of the present invention is to provide a high-temperature pyroly...

Claims

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Application Information

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IPC IPC(8): C10C1/19C10G9/00
Inventor 陈宜亮祝传艮李德良刘瑞刚
Owner SHENGLI OIL FIELD SHENGLI POWER MACHINERY GRP
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