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NTB CERATUFF Ceramic Ferrules (AL98)
Sulphur is found in crude oils and natural gas. At all temperatures, H.S is corrosive to carbon steel & to most engineering alloys. Hence, H2S must be removed from processed petroleum products & pipeline quality natural gas. This is done by partial combustion in a Claus Process Sulphur Plant. The figure given below shows a schematic drawing of a typical Claus Furnace Plant Burner. An exploded view of & heat exchanger shows the location of Ceramics Ferrules.
NTB CERATUFF AL98 Alumina Ferrules protect the tube inlets of the "Shell and Tube", Heat Exchanger from hot gas corrosion and abrasive particle erosion. Operating conditions inside & Claus unit can reach temperatures of 1600°C - 1650°C, Especially during start-up & shut-down.
NTB CERATUFF AL98 Alumina Ferrules with their excellent thermal & mechanical wear resistant characteristics provide protection to the refractory wall from erosion by the gases. in specially designed CERATUFF Ferrules the intermediate collar rests against the tube openings. This ensures that the refractory castable is anchored & reinforced by the extended part of the ferrule. Other Ferrules are designed with collars embedded in the refractory wall at two different distances from the hot face. The laminating effect of the collar is reduced, when these ferrules are installed alternately. NTB High Alumina Ceramic Ferrules are available in standard sizes or customized designs.
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