Large-scale fixed-bed biomass gasification power generation production process and complete sets of equipment

Abstract

The invention discloses a scale fixed bed biomass gasification power generation production technology and complete equipment, which is characterized by comprising four parts: (1) raw material pretreatment part, mainly comprising a raw material collecting, drying and forming system; (2) biomass gasification part for mainly comprising a large-sized biomass fixed bed gasification furnace and relevant supporting facilities thereof; (3) gas purification part, mainly comprising dusting equipment, tar removing equipment, sulfur removing equipment, dechlorinating equipment and the like; and (4) gas power generation part, the deeply purified gas is burned to generate power by mainly utilizing an internal-combustion engine. The technology also comprises accessory systems of a water treatment system a heat transfer system and the like. In the invention, the biomasses, such as waste crop straw stalks and the like are taken as raw materials, and the technology is beneficial for reasonably utilizing resources and protecting environments; the gas produced by the technology higher heat value, the produced residue and tar are comprehensively and reasonably utilized, thereby be capable of increasing income and reducing expenditure; and in the method of the invention, the energies generated in each link are utilized simultaneously fully, thus greatly improving the heat efficiency, and lowering the operation cost.

Description

technical field [0001] The invention relates to a large-scale fixed-bed biomass gasification power generation production process and a complete set of equipment, belonging to the field of biomass energy. Background technique [0002] China is a large agricultural country with abundant biomass resources. China has sufficient energy crops for development, and also includes various wastelands, grasslands, saline-alkali lands, swamps, etc. If utilized effectively, the development potential will be enormous. Biomass power generation mainly uses agricultural, forestry and industrial wastes as raw materials, and urban wastes can also be used as raw materials to generate power by direct combustion or gasification. In recent years, China's energy and power supply and demand have tightened, and domestic and foreign power generation industries have paid great attention to the development and utilization of biomass resources that are rich in resources, highly renewable, and conducive ...

AI Technical Summary

Problems solved by technology

However, these processes generally have the following disadvantages at present: the use of biomass pyrolysis and gasification has low thermal efficiency and conversion rate; biomass is generally not pretreated, and it is difficult to put it into production practice due to low production capacity or huge equipment due to its low density ;The gas purification system adopts the traditional cyclone separation and filtration method to remove fly ash and tar, and the phenomenon of running, emitting, dripping and leaking is serious, and the equipment is difficult to operate stably

These deficiencies make it difficult for the above-mentioned patents to be well applied in engineering practice

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