
Typical build up of vanadium scale on boiler tubes when burning
#6 fuel regular.

This indicates removal of vanadium scale build up burning homogenized
#6 fuel injecting 7% water by volume with controlled droplet
sizes of 4 to 7 microns over a period of six months operation.

Cleaning fireside of boiler after one year of burning #6 fuel. |
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Reduced
Maintenance
Burning homogenized
fuel oil with 40% to 50% less excess air raises the melting point
of vanadium from 1243°F to above vanadium deposits melting point.
Hence, the fireside is completely clean including brickwork, wall
tubes, screen tubes, super-heater and economizer. Several tests conducted
by the US Department of Defense, EPA, US Department of Commerce and
US Department of Transportation, along with numerous universities,
laboratories, and private entities conclusively show that homogenization
of oil with water significantly improves combustion.
Top photograph was taken of a B&W water tube boiler, 450 psig,
750°F superheat burning #6 fuel at the time a fuel homogenization
system was installed. The top photograph of screen tubes on the left
is indicative of vanadium build up when burning regular #6 fuel. Many
air passages between tubes are blocked.
The center photograph is of the same screen tubes after 6 months of
operation with a fuel homogenization system injecting 7% water. There
was no mechanical cleaning of fireside during this test period. The
superheated steam vapor from water droplet mico-explosions remove
vanadium during operation. Note the number of air passages uncovered
in only 6 months of operation.
The bottom photograph is of a 100,000 lb/hr B&W water tube boiler
after burning homogenized #6 fuel with 7% water injection by volume
for one year. The light powder on tubes is easily removed with a broom.
However this was not necessary and was for demonstration purposes
only.
For additional information please Contact Us. |
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