Gas-liquid separation and purification system for pyrolysis gas of agriculture and forestry biomass materials

Abstract

The invention relates to a gas-liquid separation and purification system for pyrolysis gas of agriculture and forestry biomass materials. The structure is that a gas input pipe is connected to an inlet of a cyclone separator, an outlet of the cyclone separator is connected with an inlet of a needle tube type condenser, an outlet of the needle tube type condenser is connected to an inlet of a spraying device, an outlet of the spraying device is connected to an inlet of a static coke knocker, an outlet of the static coke knocker is connected to a gas tank, and an outlet of the gas tank is connected with a clean fuel gas outlet pipe. The system has the advantages that the structure is scientific and reasonable, and the needle tube type condenser is adopted to replace a coiled tube type or return tube type condenser, so that the use and the maintenance are convenient, by adopting the system, gas generated by biomass pyrolysis can be separated and purified sufficiently to meet the requirements of an internal combustion engine on fuel gas and gas supply, and continuous uninterrupted stable gas supply is formed. In the system, the static coke knocker or the spraying device and a sprayingcirculation pump, or the gas tank can be demounted according to different applications of the gas, and the system can also achieve the effects of separation and purification.

Description

technical field [0001] The invention relates to a gas-liquid separation and purification system for pyrolysis gas of agricultural and forestry biomass materials, and belongs to the technical field of manufacturing and use of pyrolysis gas gas-liquid separation and purification equipment. Background technique [0002] At present, the main equipment used for pyrolysis gas-liquid separation of agricultural and forestry biomass materials includes cyclone separators, coil condensers or return pipe condensers, spray devices, etc. There are two problems encountered in practical applications: one is the current The condensation effect of some gas-liquid separation equipment is not good. The gas in the coil or return pipe condenser passes through the coil or return pipe leading to the cooling water from a large space, the cooling uniformity is low, and the condensed liquid phase contains tar. Adhering to the surface of the cooling water pipe, affecting heat transfer, resulting in poo...

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Problems solved by technology

[0002] Currently, the main equipment used for pyrolysis gas-liquid separation of agricultural and forestry biomass materials includes cyclone separators, coil condensers or return pipe condensers, and spray devices. Two problems have been encountered in practical applications: one is the existing The condensation effect of some gas-liquid separation equipment is not good. The gas in the coil or return pipe condenser passes through the coil or return pipe leading to the cooling water from a large space, the cooling uniformity is low, and the condensed liquid phase contains tar. Adhering to the surface of the cooling water pipe, affecting heat transfer, resulting in poor condensation effect and high tar content; second, the high moisture content of the gas after spraying forest, so that the quality of combustible gas cannot be guaranteed, affecting the quality of gas supply and power generation

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