Method for preparing synthetic gas by gasifying biological oil and device thereof

A technology for synthesis gas and bio-oil, which is applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problem of no substantive research, no use of pressurized gas flow bed bio-oil gasification reaction, and no synthesis gas preparation. problems, to reduce complex problems, reduce tar and methane content, and facilitate collection

Inactive Publication Date: 2011-03-23
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The domestic patent ZL200620103338.0 discloses a bio-oil pyrolysis gasification combustion device. However, this patent aims at high-temperature cracking of bio-oil and clean combustion of the cracked gas, and does not adopt the method of pressurized entrained flow bed to Bio-oil undergoes gasification reaction, and at the same time, the main purpose is not to produce syngas
To sum up, the method of producing syngas by bio-oil gasification is of great significance, but there is no substantive research at present

Method used

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  • Method for preparing synthetic gas by gasifying biological oil and device thereof
  • Method for preparing synthetic gas by gasifying biological oil and device thereof
  • Method for preparing synthetic gas by gasifying biological oil and device thereof

Examples

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Embodiment 1

[0032] see figure 1 and figure 2 and image 3 As shown, in the gasification method provided by the present invention, after the bio-oil is preheated and heated up, under the aerodynamic action of the gasification agent, it enters the entrained bed reactor after being atomized through the atomizing nozzle, and the preheating temperature of the bio-oil is Lower than 80°C; the atomized bio-oil is partially oxidized, pyrolyzed and gasified in the entrained bed reactor to produce combustible gas, the resulting reaction product is condensed, and the residue is separated to obtain crude synthesis gas.

[0033] see figure 1 As shown, the entrained bed reactor 11 in the present invention is the core device, and a furnace shell 12 is arranged outside the reactor 11 . The bio-oil is preheated to 60-75° C. through the preheater 6, so that the viscosity of the bio-oil is reduced, which is beneficial to its atomized feed. An atomizing nozzle 10 is provided before the bio-oil enters the...

Embodiment 2

[0039] see Figure 4 As shown, in this embodiment, the superheated steam enters the entrained bed reactor 11 through the draft tube 4 and six distribution tubes separated by the draft tube, and the distribution tube is communicated with the water vapor input port 9. In this embodiment Adopt six distributing pipes in the example, therefore formed six water vapor inlets 9 on the entrained bed reactor 11, make it form the structure that takes nozzle 10 as the center of circle symmetrical distribution, like this water vapor inlet is more accurate on the horizontal distribution surface. Uniform distribution, can evenly input water vapor into the entrained bed reactor. Of course, at the relative position of the nozzle and the superheated steam inlet, the number of the steam inlets is not limited. When the cross-section at the inlet of the entrained bed reactor 11 is larger, eight or ten or more can be used. The water vapor input port 9 is to ensure that the water vapor can enter th...

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Abstract

The invention discloses a method of preparing synthesis gas by biological oil gasification and a device thereof. The chemical oil is heated, atomized by a atomizer spray nozzle and then enters into an entrained flow reactor under the action of gasification agent; the atomized biological oil receives partial oxidation, thermal decomposition and gasification reaction in the entrained flow reactor to produce combustible gas; the obtained reaction product is condensed, the residual is separated and crude synthesis gas is obtained. The invention also realizes the device of the synthesis gas method, which includes the entrained flow reactor and the furnace shell out of the reactor; the inlet of the entrained flow reactor is provided with a spray nozzle for supplying the biological oil, and the outlet of the entrained flow reactor is connected with a gas-solid separation device capable of separating the reaction product in the entrained flow reactor to obtain the crude synthesis gas; at least two water vapor inlets are arranged near the spray nozzle; the water vapor inlets are spread symmetrically around the spray nozzle. The invention can obtain the synthesis gas with higher grade than that of the gas obtained by the direct gasification of biomass.

Description

technical field [0001] The invention relates to a method and a device for preparing synthesis gas from biomass, in particular to a method and a device for preparing synthesis gas by gasifying bio-oil produced after biomass pyrolysis. Background technique [0002] Syngas is an important basic raw material in the chemical industry. It is widely used, cheap and clean, and is the basis for realizing green chemical industry, synthetic liquid fuel and high-quality metallurgical products. After years of development, the process of preparing synthesis gas by gasification technology using fossil fuels such as natural gas, coal, and heavy residue oil as raw materials has become very mature. Relatively speaking, biomass is a kind of renewable energy with abundant reserves. If it is converted into high-grade syngas by gasification method, it will not only free human beings from dependence on limited fossil resources, but also greatly Significantly reduce the emission of air pollutants ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/36C01B3/44
Inventor 阴秀丽汪丛伟吴创之马隆龙
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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