Abstract
The study involved optimization of the burning process in furniture industry boilers and reduction of noxious emissions by simple remedies and adjustments. This was realized in four boilers whose initial concentration of carbon monoxide (CO) in the flue gas was 1500-2000 ppm. In addition some other similar boilers were measured and tuned. As a result, emissions due to incomplete burning diminished. The concentration of carbon monoxide in flue gas during the turning off phase was in the range 3 000 - 30 000 ppm in the on/off controlled boilers. It was observed that the CO-level in the flue gas correlated with the amount of fuel left on the grate at the end of each full output sequence. The emissions during the turning-off phase could not be reduced. Grate and control equipment showed defects and malfunction originating from negligence of maintenance and lack of proper operating instructions. The emissions from maintained boilers were reduced by adjusting the fuel stream and the primary and secondary air flows, with brickwork in the furnace over the grate and by insulating the secondary burning chamber. The flow adjustments were carried out on the basis of flue gas analysis. Mounting a catalyst into the convection part
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Larjava, K;
Siltanen, T;
[1]
Metsae, A;
[2]
Tormonen, K;
[1]
Kolsi, A;
Orjala, M;
[3]
Muurinen, M
[4]
- VTT Chemical Technology, Espoo (Finland)
- Suomen Puututkimus Oy, Espoo (Finland)
- VTT Energy, Jyvaeskylae (Finland)
- Enemi Oy, Lahti (Finland)
Citation Formats
Larjava, K, Siltanen, T, Metsae, A, Tormonen, K, Kolsi, A, Orjala, M, and Muurinen, M.
Intensification of combustion in wood product industry; Huonekaluteollisuuden laemmityskattiloiden polton tehostaminen.
Finland: N. p.,
1995.
Web.
Larjava, K, Siltanen, T, Metsae, A, Tormonen, K, Kolsi, A, Orjala, M, & Muurinen, M.
Intensification of combustion in wood product industry; Huonekaluteollisuuden laemmityskattiloiden polton tehostaminen.
Finland.
Larjava, K, Siltanen, T, Metsae, A, Tormonen, K, Kolsi, A, Orjala, M, and Muurinen, M.
1995.
"Intensification of combustion in wood product industry; Huonekaluteollisuuden laemmityskattiloiden polton tehostaminen."
Finland.
@misc{etde_419208,
title = {Intensification of combustion in wood product industry; Huonekaluteollisuuden laemmityskattiloiden polton tehostaminen}
author = {Larjava, K, Siltanen, T, Metsae, A, Tormonen, K, Kolsi, A, Orjala, M, and Muurinen, M}
abstractNote = {The study involved optimization of the burning process in furniture industry boilers and reduction of noxious emissions by simple remedies and adjustments. This was realized in four boilers whose initial concentration of carbon monoxide (CO) in the flue gas was 1500-2000 ppm. In addition some other similar boilers were measured and tuned. As a result, emissions due to incomplete burning diminished. The concentration of carbon monoxide in flue gas during the turning off phase was in the range 3 000 - 30 000 ppm in the on/off controlled boilers. It was observed that the CO-level in the flue gas correlated with the amount of fuel left on the grate at the end of each full output sequence. The emissions during the turning-off phase could not be reduced. Grate and control equipment showed defects and malfunction originating from negligence of maintenance and lack of proper operating instructions. The emissions from maintained boilers were reduced by adjusting the fuel stream and the primary and secondary air flows, with brickwork in the furnace over the grate and by insulating the secondary burning chamber. The flow adjustments were carried out on the basis of flue gas analysis. Mounting a catalyst into the convection part of one tested boiler reduced the CO concentration in of flue gas from the initial value 500 ppm to 300 ppm. However the tested catalyst was poisoned by pollutants in the wood chips. In addition to improving the burning phase, the total emissions of one boiler were minimised by removing the turning off phase completely and changing the burning to a continuous process. This required that the boiler automation was renewed and new automation equipment}
place = {Finland}
year = {1995}
month = {Dec}
}
title = {Intensification of combustion in wood product industry; Huonekaluteollisuuden laemmityskattiloiden polton tehostaminen}
author = {Larjava, K, Siltanen, T, Metsae, A, Tormonen, K, Kolsi, A, Orjala, M, and Muurinen, M}
abstractNote = {The study involved optimization of the burning process in furniture industry boilers and reduction of noxious emissions by simple remedies and adjustments. This was realized in four boilers whose initial concentration of carbon monoxide (CO) in the flue gas was 1500-2000 ppm. In addition some other similar boilers were measured and tuned. As a result, emissions due to incomplete burning diminished. The concentration of carbon monoxide in flue gas during the turning off phase was in the range 3 000 - 30 000 ppm in the on/off controlled boilers. It was observed that the CO-level in the flue gas correlated with the amount of fuel left on the grate at the end of each full output sequence. The emissions during the turning-off phase could not be reduced. Grate and control equipment showed defects and malfunction originating from negligence of maintenance and lack of proper operating instructions. The emissions from maintained boilers were reduced by adjusting the fuel stream and the primary and secondary air flows, with brickwork in the furnace over the grate and by insulating the secondary burning chamber. The flow adjustments were carried out on the basis of flue gas analysis. Mounting a catalyst into the convection part of one tested boiler reduced the CO concentration in of flue gas from the initial value 500 ppm to 300 ppm. However the tested catalyst was poisoned by pollutants in the wood chips. In addition to improving the burning phase, the total emissions of one boiler were minimised by removing the turning off phase completely and changing the burning to a continuous process. This required that the boiler automation was renewed and new automation equipment}
place = {Finland}
year = {1995}
month = {Dec}
}