Two-stage high-temperature preheated steam biomass gasification furnace

A high-temperature steam and gasification furnace technology, which is applied in the gasification of granular/powdered fuel, inorganic chemistry, chemical industry, etc., can solve the problems of lack of sufficient research on the high-temperature air gasification process, and the lack of a relatively complete experimental system, etc.

Inactive Publication Date: 2011-09-21
万贤法
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Problems solved by technology

[0002] Biomass high-temperature air gasification technology is a high-tech in the field of fuel utilization and energy supply. It is of great significance to alleviate the energy crisis and improve environmental quality. It has been accepted by academia and industry in some developed countries such as Japan, the United

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  • Two-stage high-temperature preheated steam biomass gasification furnace
  • Two-stage high-temperature preheated steam biomass gasification furnace
  • Two-stage high-temperature preheated steam biomass gasification furnace

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Embodiment Construction

[0068] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0069] In the embodiment, the selected material is solid pellets, so the liquid and particulate feed material injection port 11 in the lower part of the furnace body is in a closed state.

[0070] In the present embodiment, the diameter of the selected solid pellets is about 8mm (the parameters of the wooden pellets are listed in Table 1), and the wooden pellets under the room temperature of 15° C. The mass flow rate is supplied to the first-stage reactor 3 from the solid feed feed end 1, passes through the upper fire grate 8 after passing through the first-stage reactor 3, then enters the second-stage reactor 4, and then passes through the lower fire grate 5 until The molten slag formed in the slag collection chamber 6 is discharged at the slag...

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Abstract

The invention discloses a two-stage high-temperature preheated steam biomass gasification furnace. According to the invention, steam with a high temperature is used as a gasification agent. Fuel gas with high quality and high heat value is obtained through the gasification of the biomass. Meanwhile, active carbon, which is a byproduct, is produced. The gasification furnace is composed by a first reactor and a second reactor. The first reactor is a fixed bed gasification section, where volatile matters in feedings are removed. During the process, only high-temperature preheated pure steam provided by a high-temperature air generator is used. The second reactor is a spouted bed gasification section, where a high-temperature preheated mixture of air and steam is used for a complete cracking reaction and a tar breaking reaction. The biomass gasification furnace provided by the present invention has advantages of high gasification efficiency, high gasification speed, complete reaction, high utilance of raw materials, and is energy saving and environment protecting. The fuel gas produced by the gasification furnace has advantages of good quality and high heat value.

Description

technical field [0001] The invention relates to the field of biomass gasification, in particular to a two-stage high-temperature preheating steam biomass gasification furnace capable of performing a two-stage ultra-high temperature gasification operation on biomass. Background technique [0002] Biomass high-temperature air gasification technology is a high-tech in the field of fuel utilization and energy supply. It is of great significance to alleviate the energy crisis and improve environmental quality. It has been accepted by academia and industry in some developed countries such as Japan, the United States, and Western Europe. my country's research work in this area has just started, and there is not enough research on the high-temperature air gasification process itself. At present, there is no relatively complete experimental system that can be used for high-temperature air gasification research. Contents of the invention [0003] The technical problem solved by the p...

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Application Information

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IPC IPC(8): C10J3/66C10J3/60C10J3/62C10J3/48C01B31/10C01B31/08C01B32/336
CPCY02P20/10Y02P20/129
Inventor 万贤法曹小玲万俊松万平喜
Owner 万贤法
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