Experimental study on preheating and combustion characteristics of pulverized anthracite coal

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Title Experimental study on preheating and combustion characteristics of pulverized anthracite coal
Creator Zhu, Jianguo
Contributor Ouyang, Ziqu and Lu, Qinggang
Date 2013-09-25
Spatial Coverage Kauai, Hawaii
Subject AFRC 2013 Industrial Combustion Symposium
Description Paper from the AFRC 2013 conference titled Experimental study on preheating and combustion characteristics of pulverized anthracite coal by Jianguo Zhu
Abstract Anthracite, with low volatile content, has difficulties in ignition, stabilization, and burn out, especially under conditions of low boiler load. A new technique for preheating pulverized anthracite by a circulating fluidized bed was adopted. Experiments on preheated anthracite combustion were carried out in a down-fired combustor. Process of anthracite preheating, combustion characteristics, and NOX emissions were studied. The results show that preheated anthracite has a smaller mean size with a larger specific surface area. There is a uniform temperature profile along the axis of the down-fired combustor, and the combustion efficiency is 96.5%. The NOX emission in the exhaust is 256 mg/Nm3 (@ 6% O2) and the conversion ratio of fuel-N to NOX is 24.3%.
Type Event
Format application/pdf
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ARK ark:/87278/s6p29w9m
Setname uu_afrc
Date Created 2014-10-14
Date Modified 2014-10-14
ID 14354
Reference URL https://collections.lib.utah.edu/ark:/87278/s6p29w9m