Experimental Study on Combustion Characteristics of Pulverized Coal under Enriched-oxygen Condition by Entrained Flow Reactor
Guo-Wei Liu, Dao-Zhi Qu, Peng Dong, Ru-Shan Bie
School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
Abstract:
Four different pulverized coals have been used to study the effects of oxygen concentration on combustion characteristics under different enriched-oxygen conditions by entrained flow reactor experiments. The results show that: with the increase of oxygen concentration, the ignition temperature of four coals greatly decreases and the low volatile coals decrease faster; with the increase of oxygen concentration, the ignition mode of pulverized coal has an obviously transformation from homogeneous ignition to heterogeneous ignition, and the corresponding oxygen concentrations are about 40％ and 50％-60％ respectively for bituminous coal and lignite, and both about 30％ for lean coal and anthracite; with the increase of oxygen concentration, the optimal pulverized coal concentrations of bituminous coal and lignite increase firstly and then decrease, but for lean coal and anthracite, the optimal pulverized coal concentrations decrease slowly with the increase of oxygen concentration.
Key words: enriched-oxygen condition combustion characteristics entrained flow reactor ignition mode
DOI：10.11916/j.issn.1005-9113.2013.01.009
Clc Number:TK227.7
Fund:
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Experimental Study on Combustion Characteristics of Pulverized Coal under Enriched-oxygen Condition
本站小编 哈尔滨工业大学/2019-10-24
相关话题/Experimental Study Combustion Characteristics Pulverized
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