Sulfur Recovery Daily Question 2018.12.6
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What are the technical requirements for protecting catalyst CT6-4B? Answer: ① Shape: φ4mm–6mm, brown spherical. ②Main chemical composition: Active Al2O3 carrying active metal compounds. ③Loss on ignition: <4.0 (wt%). ④Physical properties: Bulk density: 0.75～0.85 (kg/L) ； Specific surface area: >260 (m2/g) (low-temperature nitrogen adsorption method) or ≥200 (m2/g) (methanol adsorption method) ； Pore volume: ≥0.40 (ml/g) ； Wear rate: <0.6% (m/m) ； Average crushing strength: ≥150 (N/piece). ⑤Air speed (h-1): 1500 h-1 (operating condition)
①Shape: φ4mm–6mm, brown spherical. ②Main chemical composition: Active Al2O3 carrying active metal compounds. ③Loss on ignition: <4.0 (wt%). ④Physical properties: Bulk density: 0.75～0.85 (kg/L) ； Specific surface area: >260 (m/g) (low-temperature nitrogen adsorption method) or ≥200 (m/g) (methanol adsorption method) ； Pore volume: ≥0.40 (ml/g) ； Wear rate: <0.6% (m/m) ； Average crushing strength: ≥150 (N/piece). ⑤Airspeed (h): 1500 h (operating condition)
①Shape: φ4mm–6mm, brown spherical. ②Main chemical composition: Active Al2O3 carrying active metal compounds. ③Loss on ignition: <4.0 (wt%). ④Physical properties: Bulk density: 0.75～0.85 (kg/L) ； Specific surface area: >260 (m/g) (low-temperature nitrogen adsorption method) or ≥200 (m/g) (methanol adsorption method) ； Pore volume: ≥0.40 (ml/g) ； Wear rate: <0.6% (m/m) ； Average crushing strength: ≥150 (N/piece). ⑤Airspeed (h): 1500 h (operating condition)
①Shape: φ4mm–6mm, brown spherical. ②Main chemical composition: Active Al2O3 carrying active metal compounds. ③Loss on ignition: <4.0 (wt%). ④Physical properties: Bulk density: 0.75～0.85 (kg/L) ； Specific surface area: >260 (m/g) (low-temperature nitrogen adsorption method) or ≥200 (m/g) (methanol adsorption method) ； Pore volume: ≥0.40 (ml/g) ； Wear rate: <0.6% (m/m) ； Average crushing strength: ≥150 (N/piece). ⑤Airspeed (h): 1500 h (operating condition)
①Shape: φ4mm–6mm, brown spherical. ②Main chemical composition: Active Al2O3 carrying active metal compounds. ③Loss on ignition: <4.0 (wt%). ④Physical properties: Bulk density: 0.75～0.85 (kg/L) ； Specific surface area: >260 (m/g) (low-temperature nitrogen adsorption method) or ≥200 (m/g) (methanol adsorption method) ； Pore volume: ≥0.40 (ml/g) ； Wear rate: <0.6% (m/m) ； Average crushing strength: ≥150 (N/piece). ⑤Airspeed (h): 1500 h (operating condition)
This post was last edited by pdf1314 on 2018-12-7 at 11:41. Physical properties: The bulk density must meet the requirements； The airspeed cannot be too fast. It prevents overheating and overpressure, ensuring that the impurities in the material remain within acceptable levels.