Laboratory of Circulating Fluidized Bed

Aug 27, 2024 / Author by Text SizeDBS

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 boilers, low-carbon industrial process, solid waste disposal and comprehensive energy conservation and emission reduction, etc.

Team Building

There are 43 research staff including 9 professors, 16 associate professors/senior engineers, 5 post-doctor fellows and 62 graduate students.

Project and Major Achievement

In terms of peak regulation of coal-fired power generation, the key technology development and industrial validation of pulverized coal preheating modified depth flexible peak shaving have been completed. This technology supports the peak shaving of self-provided power in a large industrial park located in Shandong. The photovoltaic utilization rate of the park has seen an increase from 52% to 78%, leading to a significant reduction in carbon emissions and economic benefits. The project has broken through the key technology of flexible peak shaving of tangentially pulverized coal boiler and circulating fluidized bed boiler. This innovative technology has been validated through MW-scale pilot tests and has been industrially implemented in 170 t/h pulverized coal boilers and 240 t/h circulating fluidized bed boilers, with the lowest stable combustion load reaching 20%. Furthermore, the design of the program for the 300 MW power station boiler deep flexible peak shaving demonstration project has been successfully finalized.

In terms of low-carbon technology in industry, a carbon-based raw material utilization technology system with pyrolysis/gasification-combustion as the core has been established, which is conducive to supporting the low-carbon development of industry. Based on reaction decoupling, a pyrolysis process of pulverized coal in a fluidized bed has been proposed, and a kilotons/year pilotscale setup has been further built. In terms of engineering demonstrations, a demonstration project of 250,000 tons/year nickel iron reduction roasting technology has been successfully constructed, and the design scheme for the demonstration project of low-carbon high-efficient combustion technology used in a 2,500 tons/day cement kiln has been completed and the corresponding demonstration setup has been in construction. The developed comprehensive utilization system for coal gas-electricity cogeneration has been practically applied, and the comprehensive energy utilization efficiency has reached 83.11%, according to the third-party evaluation.

In terms of solid waste disposal and utilization, the key technology of efficient incineration for the residual carbon from entrained-flow gasifier ash was broken through. What's more, the pilot experiment of carbon combustion and utilization on kilotons of entrained-flow gasifier ash was accomplished and its third-party test was passed. On this basis, the 490,000 tons/year demonstration project of residual carbon combustion and utilization on gasifier ash will be completed. Aiming at the demand of gasifier ash melting disposal, the key components for the high-value fluidization melting technology were developed, and the kilotons/year pilot experiment was completed. Further, the first 100,000 tons/year demonstration project adopting the above technology was built.

In terms of new technology research and development, breakthrough progress has been made in near-zero emission technology of coal combustion and CO2 utilization technology. The process of coal purification and combustion was got through, and the high-efficiency and low-nitrogen emissions were achieved on the first 100 kW scale pilot. Therefore, the original NOx emission reduced to 40 mg/m3, and the combustion efficiency was over 99.5%. In addition, the 1500 tons/year pilot experiment on the non-catalytic thermal reduction of CO2 to CO technology was verified, in which CO2 utilization rate reached 39%.

Technology Transfer

In 2023, the circulating fluidized bed gasification technology and the pulverized coal preheating combustion technology have been transferred continuously.

Patent and Paper

In 2023, 55 academic papers in journals and conferences were published, with 48 indexed by SCI. 35 invention patents were authorized, including 5 core or important patents. A trademark was registered.

Award

In 2023, the research team was rewarded with Special prize of Invention and Entrepreneurship Award of China Invention Association.

International Cooperation and Exchange

In 2023, an 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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