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Title The Burning Properties of Dust from Asphalt Firing in Pulverized Coal Fired Boilers
Creator Watanabe, Shinji; Kiga, Takashi
Publisher Digitized by J. Willard Marriott Library, University of Utah
Date 1998
Spatial Coverage presented at Maui, Hawaii
Abstract Since ashes from heavy oil or asphalt fired boilers contain considerable amount of corrosive materials, they are burned with additional oil in an exclusive incinerator. On the other hand, as they includes much unburned carbon having as much heating value as coal, there is some possibility to use them as fuel. In this study, ashes sampled at the electrostatic precipitator (EP) of an asphalt-fired boiler were examined whether they could be co-fired in the pulverized-coal-fired boilers. From laboratory-scale and pilot-scale test results it was made clear that although the ashes from asphalt firing had as only as a little amount of volatile matter as semianthracite or anthracite had, they revealed burn-out properties Iike bituminous. When they were co-fired with pulverized coal by 1% by heat input, a considerable increase in SO, emission was noted, whiIe N0X emission was somewhat decreased compared with coal firing. From these verifications, it was confirmed that the co-firing of ashes from asphalt firing with pulverized coal was applicable to actual boilers within the permitted S02 concentration at the inlet of the de-SOx system.
Type Text
Format application/pdf
Language eng
Rights This material may be protected by copyright. Permission required for use in any form. For further information please contact the American Flame Research Committee.
Conversion Specifications Original scanned with Canon EOS-1Ds Mark II, 16.7 megapixel digital camera and saved as 400 ppi uncompressed TIFF, 16 bit depth.
Scanning Technician Cliodhna Davis
ARK ark:/87278/s6xd1493
Setname uu_afrc
ID 13147
Reference URL https://collections.lib.utah.edu/ark:/87278/s6xd1493

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Title Page 4
Format application/pdf
OCR Text Show
Setname uu_afrc
ID 13137
Reference URL https://collections.lib.utah.edu/ark:/87278/s6xd1493/13137