Details: special grade, octagonal shape tiles (high alumina bricks) for secondary reformer of ammonia-i. temperature=1600 deg (min), pressure=35 kg/cm2g, the bricks will come in contact with a mixture of process gas with various contents of h2, co, co2, ch4 and steam, as per the operating conditions as mentioned above. composition of high alumina bricks- al2o3= 99 % (min) sio2 =0.30 percent (max), fe2o3 = 0.15 percent (max), cl= 50 ppm (max), s= 50 ppm (max), alkalies= less than 0.35 percent, partical density= 3.20 gm/cm2 (min), appparent porosity= 14 to 18 percent, cold crushing strength=950 kg/cm2 (min), size as per detailed description and drawing which are enclosed. special grade, square shape tiles (high alumina bricks) for secondary reformer of ammonia-i. operating conditions are temperature=1600 deg (min), pressure=35 kg/cm2g, the bricks will come in contact with a mixture of process gas with various contents of h2, co, co2, ch4 and steam, as per the operating conditions as mention
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