Combined biomass vaporization furnace and thermal cracking device thereof

Abstract

The invention discloses a compound biological gasification stove and thermal cracking device, the main point of which is: it is comprised with two biological gasification stove, four U-shaped catalytic reactor, catalyst, one aerator and air regulator. The gas produced in the gasification stove 1 is introduced to the catalyst 3, taking part in the first thermal cracking; through the modification by the aerator a part of gas flow is introduced into the gasification stove 1 and mixed with catalyst 11,taking part in the second thermal cracking and the new produced gas flow is introduced to the catalyst 3 and for the third thermal cracking; another part of gas flow is introduced into gasification stove 26 and mixed with catalyst 21 for the fourth thermal cracking, and is introduced into upper catalyst 25 for the fifth thermal cracking; and therefore, the oil tar is cracked thoroughly. The invention is characterized by the low production cost, convenient usage, and the improvement in oil tar cracking efficiency, gasifying efficiency and gas thermal value on the original base.

Description

Technical field:

[0001] The invention relates to a gasification furnace, in particular to a composite biomass gasification furnace and a thermal cracking device. Background technique:

[0002] In the early 1980s, my country began to study biomass thermal decomposition gasification technology, and developed various forms of gasifiers. Biomass is a kind of renewable energy with abundant reserves. It can be used as an alternative energy source to realize CO 2 Zero emissions, and low S, N content, greatly reduce the greenhouse effect and environmental pollution.

[0003] At present, the main problem of domestic biomass gasification technology is that the calorific value of gas is low, and the tar produced in the gasification process is more, which makes it difficult to purify the gas and affects the normal operation of the gasifier. The gas purification system usually adopts simple water washing treatment, which not only causes serious pollution of the washing water, but also ...

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