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.

Abstract: A burner tip, and method of manufacture, has a support layer with an external surface exposed to combustion reactions and an unexposed internal surface defining at least one a passage therethrough to deliver fuel and combustion gasses, and a thermal protective layer disposed on at least part of the unexposed surface of the burner tip support layer. The thermal protective layer 22 has from about 5% to about 40% of an inorganic adhesive, from about 45% to about 92% of a filler, and from about 1% to about 20% of one or more emissivity agents.

Abstract: Process and apparatus to form vinyl chloride monomer from ethylene dichloride in a cracking furnace, including a firebox chamber having a thermal protective layer disposed on refractory walls and/or process tubes disposed within the chamber, a quencher to form vinyl chloride monomer, and fractionator separate products. The thermal protective layer which 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.

Abstract: A burner tip, and method of manufacture, has a support layer with an external surface and an internal surface defining at least one opening therethrough defining a passage therethrough to deliver fuel and combustion gasses, and a thermal protective layer disposed on at least one surface of the burner tip support layer. The thermal protective layer 22 has from about 5% to about 40% of an inorganic adhesive, from about 45% to about 92% of a filler, and from about 1% to about 20% of one or more emissivity agents.

Abstract: A tube shield, and method of manufacturing the tube shield, having a support structure with an external surface, an internal surface, and an edge, and a thermal protective layer on at least one surface of the shield support structure. The thermal protective layer is composed of a filler, one or more emissivity agent, and either an inorganic adhesive or a binder that is colloidal silica, colloidal alumina, or combinations thereof. A colorant, a surfactant, and/or a stabilizer may be incorporated into the thermal protective layer.

Abstract: Process and apparatus to form vinyl chloride monomer from ethylene dichloride in a cracking furnace, including a firebox chamber having a thermal protective layer disposed on refractory walls and/or process tubes disposed within the chamber, a quencher to form vinyl chloride monomer, and fractionator separate products. The thermal protective layer which 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.

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.

Abstract: A coating, method of coating and substrates coated thereby, wherein the coating contains an inorganic adhesive such as an alkali/alkaline earth metal silicate such as sodium silicate, potassium silicate, calcium silicate, and magnesium silicate; a filler such as a metal oxide for example silicon dioxide, aluminum oxide, titanium dioxide, magnesium oxide, calcium oxide and boron oxide; and one or more emissivity agents such as silicon hexaboride, carbon tetraboride, silicon tetraboride, silicon carbide, molybdenum disilicide, tungsten disilicide, zirconium diboride, cupric chromite, or metallic oxides such as iron oxides, magnesium oxides, manganese oxides, chromium oxides and copper chromium oxides, and derivatives thereof. In a coating solution, an admixture of the coating contains water. A stabilizer such as bentonite, kaolin, magnesium alumina silicon clay, tabular alumina and stabilized zirconium oxide may be added.

Abstract: A coating admixture, method of coating and substrates coated thereby, wherein the coating contains colloidal silica, colloidal alumina, or combinations thereof; a filler such as silicon dioxide, aluminum oxide, titanium dioxide, magnesium oxide, calcium oxide and boron oxide; and one or more emissivity agents such as silicon hexaboride, carbon tetraboride, silicon tetraboride, silicon carbide, molybdenum disilicide, tungsten disilicide, zirconium diboride, cupric chromite, or metallic oxides such as iron oxides, magnesium oxides, manganese oxides, chromium oxides, copper chromium oxides, cerium oxides, terbium oxides, and derivatives thereof. In a coating solution, an admixture of the coating contains water. A stabilizer such as bentonite, kaolin, magnesium alumina silicon clay, tabular alumina and stabilized zirconium oxide is also added.