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Title: Removal of NOx and CO from a Burner system
Authors: Jaafar, M. N. M.
Mohamad Shaiful Ashrul, Ishak
Saharin, C.
Keywords: Burner system;Carbon monoxide (CO);Air staging
Issue Date: 15-Apr-2010
Publisher: American Chemical Society
Citation: Environmental Science and Technology, vol.44 (8), pages 3111-3115
Abstract: This paper presents the development of an emissions-controlling technique for oil burners aimed especially to reduce oxides of nitrogen (NOx). Another emission of interest is carbon monoxide (CO). In this research, a liquid fuel burner is used. In the first part, five different radial air swirler blade angles, 30°, 40°, 45°, 50°, and 60°, respectively, have been investigated using a combustor with 163 mm inside diameter and 280 mm length. Tests were conducted using kerosene as fuel. Fuel was injected at the back plate of the swirler outlet. The swirler blade angles and equivalence ratios were varied. A NOx reduction of more than 28% and CO emissions reduction of more than 40% were achieved for blade angle of 60° compared to the 30° blade angle. The second part of this paper presents the insertion of an orifice plate at the exit plane of the air swirler outlet. Three different orifice plate diameters of 35, 40, and 45 mm were used with a 45° radial air swirler vane angle. The fuel flow rates and orifice plate's sizes were varied. NOx reduction of more than 30% and CO emissions reduction of more than 25% were obtained using the 25 mm diameter orifice plate compared to the test configuration without the orifice plate. The last part of this paper presents tests conducted using the air-staging method. An industrial oil burner system was investigated using the air staging method in order to reduce emission, especially NOx. Emissions reduction of 30% and 16.7% were obtained for NOx and CO emissions, respectively, when using air staging compared to the non-air-staging tests.
Description: Link to publisher's homepage at http://portal.acs.org/
URI: http://pubs.acs.org/doi/abs/10.1021/es903606y
http://hdl.handle.net/123456789/8425
ISSN: 0013-936X
Appears in Collections:School of Manufacturing Engineering (Articles)

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