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49013
Ceramic Coating for Biomass Gasification
Environment?
June 12, 2008
My name is John Tomasi. My company is a manufacturer of biomass
gasification equipment to provide energy in the form of hot water and
both low and high pressure steam for a variety of commercial and
industrial applications.
The internal construction of our gasifiers is refractory with the
exception of a few stainless steel components. We are searching for
an appropriate ceramic coating to prolong the life of these
components. Most of our systems are operating 24/7 and depending on
the selected biomass fuel can see temperatures of 1100C.-1150C. Any
help is greatly appreciated!
John Tomasi
Product Designer - Williston, VT, USA
June 13, 2008
Thick ceramic coatings will suffer due to their highly different
thermal expansion rate compared to steel, so, perhaps a PVD coating
would meet your needs. They are normally very thin (less than
0.0003-0.0004") but are very adherent and resist oxidation and a good
degree of chemical attack at high temperatures very well. Examples
would be Titanium Nitride, Titanium-Aluminum Nitride, Chromium
Nitride.
Guillermo Marrufo
Monterrey, NL, Mexico


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