Research Fields
R&D of CFB technology with multi-fuel (i.e. coal, biomass and waste) for efficient clean combustion and grading conversion; R&D of comprehensive energy efficiency and emission reduction technology.
Research Orientations
1. Scaling-up research of coal-fired CFB boiler technology with large capacity and high parameters; experimental study and numerical simulation of key components and technology; CFB boilers covering capacities of 50MW-150MW-200MW-600MW-660MW.
2. Control technology of combustion gas emissions: oxy-fuel combustion in CFB; CFB combustion SO2 and NOx emission control.
3. CFB pyrolysis and gasification technology: R&D of low temperature pyrolysis technology targeting the high value utilization of coal; R&D, project demonstration and industrialization of CFB coal gasification for natural gas.
4. Biomass combustion technology for power generation: the combustion characteristics, ash characteristics, and emission characteristics of biomass in CFB; R&D of a large scale 100% biomass CFB boiler.
5. Harmless incineration and utilization of urban sewage sludge: the desiccation, combustion and emissions characteristics of sewage sludge; R&D of the integration technology of sewage sludge desiccation and incineration in CFB.
Organization and Personnel
Currently there are 40 employees, including 6 professors (one in the Hundred Talents Plan and one in the Thousand Youth Talents Plan), and 13 associate professors/senior engineers. There are 24 graduates including 11 PhD students and 13 master’s students. There is also 1 post-doctor.
Projects in 2013
In 2013, there were 29 research projects, including 13 projects supported by the nation or CAS, 14 projects commissioned by enterprises, and two international cooperation projects. There were 7 new projects, including 1 project supported by the strategic priority research program of CAS, 1 international cooperation project supported by Bureau of International Cooperation of CAS, 1 project supported by CAS and local enterprises, and 4 projects commissioned by enterprises. Six projects were completed.
Major Progress and Achievements in 2013
In 2013, the laboratory made several great achievements in R&D work and successfully carried out its research missions for the year.
Regarding R&D of super-critical CFB boilers, 2 sets of large-scale supercritical CFB cold-test models were established in the Lang Fang R&D Center of IET. Through experimental study and numerical simulation, the advantaged furnace structure of a large-scale supercritical CFB with annular furnace was determined, based on which the corresponding technical solution was developed. The expert committee review found that “it is technically feasible to apply annular furnace to a supercritical CFB boiler, which is an important approach for the development of the scaling-up of the CFB boiler”. A 2 MW CFB with annular furnace pilot platform for semi-coke/coal combustion was established and successfully commissioned, and the hot-test experiments will be carried out to evaluate the annular furnace structure. In addition, the key project “Operation Technology and Performance Testing of the 600 MWe Super-critical CFB Boiler” supported by the National Eleventh Five-Year Sci-Tech Support Plan passed the acceptance check of Ministry of Science and Technology. The technology research on the start-up, commissioning, operation, and testing of the first unit of the 600 MWe super-critical CFB boiler was completed. The guide lines of start-up commissioning technology, the operation scheme of load change at constant/sliding pressure and reasonable operation mode were proposed, which provided support for the application of super-critical CFB boiler technology.
Regarding oxy-fuel combustion technology, a 100 kW CFB oxy-fuel combustion testing system was further improved, and the furnace heat transfer characteristics, SO2 and NOx emissions in an atmosphere of O2/CO2 and recycled flue gas under 50% O2 concentration were investigated. The scaling-up criteria of CFB oxy-fuel combustion testing system from 100 kW to 1 MW was obtained, based on which the 1 MW CFB oxy-fuel combustion pilot platform was designed and the main part completed before the end of 2013.
Regarding the making natural gas from powdered coal, a 25000 Nm3/h CFB gasifier was put into commercial operation in Jiangsu Province and all operational data was in agreement with the design values.
In the field of residue carbon from coal gasification combustion technology, a 5 t/d CFB combustion pilot platform for residual carbon from gasification was established and the commissioning was completed. The key technology of fly ash re-burning in CFB is expected to be near breakthrough, and the produced heat could be used to make 500℃-600℃ steam as coal gasification process agent, which could improve the carbon conversion rate of the CFB coal gasification process and better realize the efficient clean conversion of coal.
61 papers were published, including 11 indexed by SCI, and 20 by EI. 5 invention patents were authorized in China.
Dean: LYU Qinggang Tel: 010-82543053 E-mail: qglu@iet.cn
Deputy dean: Na Yongjie Tel: 010-82543058 E-mail: nayongjie@iet.cn
