Pyrolysis furnace and process tubes
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United States of America Patent
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Apr 21, 2015
Grant Date -
Oct 8, 2009
app pub date -
Apr 7, 2008
filing date -
Apr 7, 2008
priority date (Note) -
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Abstract
A cracking furnace construction includes a firebox defining a chamber having a high emissivity thermal protective coating disposed on at least part of the refractory walls and/or on process tubes disposed within the chamber. The coating contains an inorganic adhesive for metal/alloy tubes or colloidal silica and/or colloidal alumina for refractory walls or ceramic tubes, a filler, and one or more emissivity agents. A method of coating the firebox chamber includes preparing the surface of the tubes/refractory walls, preparing the coating, and applying the coating to the surface.
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