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Title	Particulate Emission Control by the Application of Combustion Catalyst
Creator	Shah, Jitendra
Publisher	Digitized by J. Willard Marriott Library, University of Utah
Date	1984
Spatial Coverage	Tulsa, Oklahoma
Abstract	A combustion catalyst was developed to improve combustion and reduce particulate emissions from a bark fired boiler. Laboratory experiments showed significant reduction in ignition temperature and an increase in rate~of burnout of bark when mixed with combustion catalyst. It was then field evaluated on a bark boiler which was marginally out of EPA particulate compliance limits of 0.1 pounds per million BTU. An electron microscopic x-ray analysis showed a high level of potassium and sulfur present in the particulate emitting from the stack. Majority of the particles were less than 0.3 microns. The particulate emissions were found to be a strong function of excess air and catalyst feed rate. Application of combustion catalyst reduced particulate emissions from an average baseline value of 0.14 to 0.09 pounds per million BTU. Mechanism of combustion catalyst is also discussed.
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/s63b62pz
Setname	uu_afrc
ID	1435
Reference URL	https://collections.lib.utah.edu/ark:/87278/s63b62pz

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Title	Page 5
Format	application/pdf
OCR Text	Show Thermogravimetric analysis of bark with and without catalyst showed similar results. The sample was heated in an oxidizing atmosphere at the heating rate of 20°C per minute and weight loss was measured as a function of temperature. In Figures 1 and 2, derivative of weight loss^is plotted against temperature for untreated and treated bark. There are three successive stages that take place in the direct combustion of bark. These stages are water evaporation, distillation and combustion of volatile matter, and the reaction of fixed carbon with oxygen. It is interesting to note that there are two major peaks in Fig. 1 for untreated bark and only one in Fig. 2 for treated bark. Both volatile matter and fixed carbon losses in the case of treated bark (Fig. 2) occurred at the temperature of about 338.2°C, which is significantly lower than that of untreated bark. 2.5.4
Setname	uu_afrc
ID	1422
Reference URL	https://collections.lib.utah.edu/ark:/87278/s63b62pz/1422