Research Field
Orienting at the major demand in the field of energy and environment in China, the laboratory has been engaging in basic research, technology and engineering development in the fields of efficient, clean and low-carbon coal combustion, coal gasification and staged utilization, deep and flexible peak regulation of coal-fired power generation, low-carbon industrial process optimization, solid waste disposal and comprehensive energy conservation andemission reduction, etc.
Team Building
There are 39 research staffs including 11 professors, 12 associate professors/senior engineers; 7 post-doctor fellows and 48 graduate students.
Project and Major Achievement
In terms of peak regulation of coal-fired power generation, new progress has been achieved in the key technology development and industrial validation of coal preheating modification for deep flexible peak shaving in coal-fired power plants. Industrial validation on a 240 t/h circulating fluidized bed (CFB) boiler and a 170 t/h pulverized coal boiler demonstrated a minimum stable combustion load of 20%. The CFB boiler achieved ultra-low NOx emissions without ammonia injection at low loads (30%-50% capacity). The load change rate under wide-load operation exceeded 2.5% Pe/min, and the pulverized coal boiler's restart time after bank fire was less than 1.5 hours. The 300 MW power plant boiler deep flexible peak load demonstration project has been implemented, and the 300 MW power plant boiler deep flexible peak load project scheme and scheme feasibility study have been completed.
In terms of gasificationand industrial low-carbon technologies, a technological system for the utilization of carbon-based raw materials, centered on pyrolysis/gasification-combustion, has been established to provide solutions for lowcarbon development in the industrial sector. The 1000 ton pilot-scale platform for the integrated utilization of pulverized powder by coupling fluidized bed pyrolysis with combustion and the 100 kg pressurized semi-coke conveying system have been completed and tested. The demonstration project for the > 250,000 ton per year nickel-iron reduction roasting technology has been tested and put into commercial operation, and the 2500 ton per day low-carbon and high-efficiency combustion technology demonstration project for cement kiln has begun testing. The process flow of biomass pressurized gasification has been successfully integrated and achieved stable operation at 0.5 MPa. The process package for the 500 ton per day biomass gasification to synthesis gas has been completed, and the 50,000 ton per year biomass gasification to green methanol project has started construction.
In terms of solid waste disposal and utilization, the key technologies for resource utilization of entrained-bed gasification slag through fluidizationmelting combustion are broken through, which focus on the high-efficiency incineration of residual carbon and the mineral phase reconstruction of inorganic components. The pilot test results show that the glass phase content in the molten slag reaches 98.0%, and the utilization rate of inorganic components is 91.5%. The world's first demonstration project for carbon combustion and utilization of gasification slag with an annual output of 490,000 tons has completed hot-state commissioning. For the fluidization-melting gasification technology for carboncontaining fuels, the construction of a 100,000 ton/year demonstration project has been completed and trial operation has been started, which the non-catalytic thermal reduction of CO2 to produce CO can be achieved simultaneously.
In terms of research and development of new technology for clean and lowcarbon coal combustion, the integrated coal purification-combustion process has demonstrated excellent performance. On a 200 kW test platform, original NOx emissions without ammonia injection are measured below 30 mg/m³ for multiple coal types, while combustion efficiency exceeds 99.5%. Breakthroughs have been achievedin flow and temperature control technology for staged pressurized oxy-fuel combustion. The world's first megawatt-scale pilot device for staged pressurized oxy-fuel combustion has now been developed. This system has achieved stable operation at 1.0 MPa, accumulating 75 hours of pressurized operation with asingle continuous pressurized run lasting 25 hours. The CO2 concentration in the flue gas exceeds 91%.
Technology Transfer
In 2024, the circulating fluidized bed gasification technology, the pulverized coal preheating combustion technology and the biomass gasification technology have been transferred continuously.
Patent and Paper
In 2024, 45 academic papers were published, 32 of which were indexed by SCI and 3 of which by EI. 30 invention patents were authorized, including 8 core or important patents; 2 group standards was issued; 2 monographs were published.
Award
In 2024, the research team was rewarded with the First Prize for Scientific and Technological Progress of Gansu Province and the First Prize for Scientific and Technological Progress of the China Society for Particuology.
International Cooperation and Exchange
In 2024, one international exchange and cooperation project was approved.
Dean: ZHU Zhiping 86-10-82543184 zhuzhiping@iet.cn
Deputy dean: REN Qiangqiang 86-10-82543176 renqiangqiang@iet.cn
HUANG Canran 86-10-82543054 huangcanran@iet.cn
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