Biomass combustible gas tar separation and removal apparatus

Abstract

The invention discloses a biomass combustible gas tar separation and removal apparatus, comprising a primary cooling tar separator and a secondary cooling tar separator identical in structure, each comprising a device cavity condenser, an upper tar-collecting plate and a lower tar-collecting plate; the top of a device cavity is provided with a conveying pipe connector intake port connected with a conveying pipe, gas is subjected to primary cooling dust removal and secondary cooling dust removal and the enters the condenser, and the gas is condensed to and separate and remove pyroligneous liquor and is cooled again; the gas then enters the primary cooling tar separator to remove most of tar and is also cooled, the gas is then charged into the secondary cooling tar separator to purify and remove the tar, the residual tar in the gas is further removed, the gas is cooled, and the combustible gas completely purified and fully cooled through kinetic energy of a fan is stored in a gas storage tank for standby.

Description

technical field [0001] The invention relates to the field of gas tar, in particular to a biomass combustible gas tar separation and removal device. Background technique [0002] At present, the separation and removal of tar in biomass combustible gas mainly adopts two categories: physical method and physical chemical method. Roughly divided into: wet, dry-wet, dry-wet mixed, high temperature cracking, catalytic cracking, electrostatic field adsorption and other methods, but there are various deficiencies. [0003] Brief introduction and disadvantages of currently applied biomass combustible gas tar separation and removal technology methods: [0004] 1. Wet washing method. The method is to configure multiple water spray heads in the set container, similar to the shower head in the bathroom, to spray water droplets continuously, and to wash the gas when the combustible gas passes, and the tar will flow away with the water to achieve the purpose of tar removal. Existing prob...

AI Technical Summary

Problems solved by technology

The existing problems are: the pollution of a large amount of water during the washing process and the difficulty in collecting tar, resulting in energy loss, etc.

There are also problems such as a large amount of water pollution, high treatment costs, difficult to handle filter materials, and tar loss.

[0007] 4. High-temperature pyrolysis tar method. Tar can be cracked and transformed at a high temperature above 1100°C. At present, the temperature of biomass pyrolysis furnaces is mostly at 600-700°C. If the furnace temperature is raised to above 1100°C, a large amount of energy will be consumed. Higher requirements are put forward for materials and processes, the cost rises sharply, the gain outweighs the gain, and it is difficult to use in practice. This technology is rarely used in the industry to remove tar

The disadvantages are: a large amount of water is required, causing secondary pollution or treatment, high treatment costs, and large investment in equipment

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