Gasification furnace with tar catalytic cracking structure

A technology of catalytic cracking and gasification furnace, which is applied in the field of gasification furnace, can solve the problem of tar and other problems, and achieve the effect of wide application range and convenient use

Inactive Publication Date: 2011-11-23
DONGGUAN BAIDA NEW ENERGY CO LTD
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  • Abstract
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Problems solved by technology

[0009] The purpose of the present invention is to propose a gasifier with a tar catalytic cracking structure to solve the problem of tar in the biomass gasifier

Method used

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  • Gasification furnace with tar catalytic cracking structure
  • Gasification furnace with tar catalytic cracking structure
  • Gasification furnace with tar catalytic cracking structure

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Embodiment 1

[0026] Such as figure 1 As shown, the gasifier with tar catalytic cracking structure in this embodiment includes a furnace body 1, and the furnace body 1 includes a feed inlet 2, an ash door 3 and a gas outlet 4, and the gas outlet 4 passes through a filter 5 and a multi-section tubular structure The cracker 6 communicates with each other. The cracker 6 is arranged in the body of furnace and has a part exposed inside the body of furnace. The part of the cracker 6 exposed inside the body of furnace is flush with the body of furnace. The filter 5 is a box structure, and partitions are arranged inside to form a "U"-shaped channel inside the box, which can not only block the particulate impurities in the gas, but also prevent tar from accumulating in the filter.

[0027] Such as figure 2 , 3 As shown, the cracker 6 is surrounded and arranged in the peripheral wall of the furnace body in the shape of a square frame. Inlet 64, the other end is provided with the second gas outle...

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Abstract

The invention provides a gasification furnace with a tar catalytic cracking structure to solve the general problem of tar of biomass gasification furnaces. The gasification furnace comprises a furnace body, wherein the furnace body comprises a feeding hole, an ash door and a fuel gas outlet; the fuel gas outlet is communicated with a cracker with a multi-section tubular structure; the cracker is provided with a steam inlet and a second fuel gas outlet; and the cracker is arranged in the furnace body and at least one part of the cracker is exposed in the furnace body. High temperature fuel gas containing atomized tar in the furnace body is discharged through the fuel gas outlet, and enters the cracker through a gas-ash separator; at the moment, the temperature of the fuel gas is about 500-600DEG C, and the fuel gas is secondarily heated to the temperature of higher than 750DEG C by heat provided by the furnace body in the cracker; and the fuel gas is reacted with steam under the action of a catalyst, most tar in the fuel gas is cracked into combustible gases such as CO, H2 and the like, so that carbon black is reduced, and the yield of gas is improved; therefore, the gasification furnace is more convenient to use and wider in application range.

Description

technical field [0001] The invention belongs to the technical field of biomass energy utilization, in particular to a gasifier with a tar catalytic cracking structure. Background technique [0002] As an ancient traditional energy source, direct combustion of biomass has been the only way to use energy for a long time, but this method has low conversion efficiency and serious energy loss, which not only directly leads to air pollution, but also seriously damages the ecological environment. For the clean combustion and efficient utilization of biomass fuel, it is very important to develop various energy conversion and utilization technologies of biomass, among which biomass gasification technology is one of the important methods for efficient utilization of biomass energy. However, coke and tar are unavoidable by-products in the process of biomass gasification. Tar is gaseous at high temperature and completely mixed with combustible gas, but condenses into liquid at low temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/84C10J3/20
CPCY02P20/52
Inventor 杜海江刘光华徐冰燕赵光华李宗楠叶世栋
Owner DONGGUAN BAIDA NEW ENERGY CO LTD
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