Combustion and Emission Performance of a Hog Fuel Fluidized Bed Boiler With Addition of Tire Derived Fuel

[+] Author and Article Information
Wenli Duo1

 The Pulp and Paper Research Institute of Canada, 3800 Wesbrook Mall, Vancouver, BC, Canada V6S 2L9wduo@paprican.ca

Ibrahim Karidio

 The Pulp and Paper Research Institute of Canada, 3800 Wesbrook Mall, Vancouver, BC, Canada V6S 2L9wduo@paprican.ca

Larry Cross, Bob Ericksen

 Catalyst Paper, Port Alberni Division, 4000 Stamp Avenue, Port Alberni, BC, Canada V9Y 5J7larry.cross@catalystpaper.com


Corresponding author.

J. Energy Resour. Technol 129(1), 42-49 (Mar 01, 2006) (8 pages) doi:10.1115/1.2424958 History: Received August 30, 2004; Revised March 01, 2006

Salt-laden hog fuel (wood waste) is burnt in a fluidized bed boiler converted from a traveling grate boiler to generate steam for a specialty paper mill. The converted boiler has a design capacity of 156th of steam from hog and actual generation has varied from 76% to 107% of the design capacity. The conversion has resulted in more stable operation, more complete combustion, less ash production, reduced boiler maintenance, and lower fossil fuel consumption. Tire derived fuel (TDF) is used as a supplementary fuel. With an energy content of 31GJt for TDF, as compared to 8GJt for wet hog, addition of 2%–5% TDF by weight increased the bed temperature by an average of 55°C, stabilized and improved the combustion of low quality hog and high moisture content sludge. The impact of TDF addition was studied in detail. Stack emissions were tested and bottom and flyash samples were analyzed. Although TDF contains an average of 1.6% zinc and 9.2% steel wire by weight, addition of TDF did not affect total particulate emissions from the boiler. SO2 emissions were increased due to the high sulfur content of TDF (1.4%), while NOx emissions were reduced. A good correlation was obtained from the test results, showing that the addition of TDF resulted in a reduction in both the total formation and the stack emissions of dioxins and furans.

Copyright © 2007 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.



Grahic Jump Location
Figure 1

Schematic diagram of the No. 4 BFB boiler and the TDF and hog fuel delivery systems

Grahic Jump Location
Figure 2

Effect of steam load on unburned carbon content of flyash

Grahic Jump Location
Figure 3

Effect of fuel Cl∕S ratio on stack PCDD/F emissions

Grahic Jump Location
Figure 4

Effect of fuel Cl∕S ratio on flyash PCDD/F concentration

Grahic Jump Location
Figure 5

Effect of steam load on stack PCDD/F emissions

Grahic Jump Location
Figure 6

Correlation of flyash PCDD/F concentration to flyash iron content



Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In