EXPERIMENTAL STUDY ON ASH-RETURNED REACTOR OF CFB ATMOSPHERIC AIR GASIFIER
In an attempt to improve the gasification efficiency and decrease the carbon content in fly ash of atmospheric air CFB gasifiers, an innovatory equipment by name ash-returned reactor is put forward by SKLCC. Ash-returned reactor is an ash-returned apparatus on line of ash circulation, typically like “Utype valve in CFB boilers, with additional function of some extent combustion of residual carbon and increase the furnace inlet temperature of returning ash, and hence the coal conversion of gasifiers is enhanced. As to its configuration compared to conventional “Utype valve, ash-returned rector has two distinguished features of several times of height scale of fluidizing transportation region to meet the combustion reaction time need and appropriate heat transfer tube bundles arranged in the region to moderate the local temperature so as to avoid slagging. And hence, corresponding to the structure renovation, the material transportation and regulation performance of ash-returned reactor is primarily investigated through a series of experiments in a cold lab-scale facility in this paper. The heat transfer characteristic of the tube bundles is then researched and its influential factors are further discussed. These works lay a foundation on the following study of hot state experiments and industrial applications.
CFB gasifier ash-returned reactor fly ash
Zhang Shihong Tian Luning Zhou Xianrong Chen Hanping Yang Haiping Wang Xianhua
State Key Laboratory of Coal Combustion (SKLCC),Huazhong University of Science and Technology, Wuhan State Key Laboratory of Coal Combustion (SKLCC), Huazhong University of Science and Technology, Wuha
国际会议
第20届国际流化床燃烧会议(20th International Conference on Fluidized Bed Combustion)
西安
英文
653-658
2009-05-18（万方平台首次上网日期，不代表论文的发表时间）