| abstract |
The invention discloses a device and a method for preparing synthesis gas by biomass gasification, wherein the device for preparing synthesis gas by biomass gasification comprises a feeder, a preheater, a reactor, a primary gas-solid separator, a secondary gas-solid separator, a synthesis gas cooler, a tertiary gas-solid separator, a solid slag cooler and a slag extractor; the invention can realize the high-efficiency conversion of biomass under the pressurized operation condition; the synthesis gas has high quality, the content of effective gas in the product synthesis gas is more than 75 percent, crop straws, agricultural product processing residues, forest trees, organic solid wastes, household garbage and the like are used as raw materials, the raw material adaptability is wide, and the gasification strength is high; the operation load of the device can be flexibly adjusted, and the investment intensity and the unit production cost advantage of the synthesis gas are obvious. |