At present, the core equipment for biomass gasification power generation is a gasifier. According to the different operation modes of the gasifier, it can be divided into three types: fixed bed, fluidized bed and rotary bed.
The gasifiers used in the current biomass gasification process in China are mainly fixed bed gasifiers and fluidized bed gasifiers. At present, in the practical application process of biomass gasification technology, fixed bed gasifier and fluidized bed gasifier generally have the situation that equipment cannot be continuously produced, in addition to easy coking and high temperature alkali metal element corrosion. problem. The revolutionary bed gasifier unique to our institute can not only solve many problems in the above fixed bed and fluidized bed gasifier, but also has unique technical advantages.
|Current status of biomass gasification technology
|Fixed bed gasifier and fluidized bed gasifier have major problems
|Technical advantages of LCDRI revolutionary bed gasifier
|The equipment can not achieve precise control of temperature, precision, etc.; low degree of automation, continuous production of equipment can not be achieved; in the actual application process, easy to coke and produce alkali metal corrosion;
|The original rotary bed technology has the advantages of uniform fuel heating, less coking, pyrolysis condition parameters (time/temperature), precise and automatic control, reliable system operation and high gasification efficiency.
|When biomass is gasified, the slag and fly ash have higher carbon content and lower gasification efficiency;
|High tar content in gas, affecting the stability of power generation equipment, and easy to produce coke-containing wastewater;
|Adopting the world’s only and world-leading gas purification and decoking technology, the gas meets domestic and international emission standards and the requirements of gas-fired power generation systems, and zero discharge of coke-containing wastewater;
|The exhaust heat recovery effect of the gasification generator set is not good, resulting in low overall efficiency of the system;
|The residual heat of the system can be recovered by equipment such as circulating cooling system and waste heat boiler to realize the cascade utilization of energy. The comprehensive energy utilization rate is above 95%, and the system efficiency is high;