Alumina Catalyst

  • Properties and uses

This product is γ-form white spheric active aluminium oxide, which is used for the recovery of sulfur from acidic gas containing sulfur by liquefaction in petrochemical industry. The product is prepared from intermediate raw materials of quick dehydration process production. It has the feature of high crushing strength, low adsorption rate, good activity, long period of service life, good physic-chemical properties and high catalytic activity etc. The performances of the product such as hydrolytic activity of claus, hydrolytic activity to organics sulfur, resistance to sulfation, heat stability and chemical composition can reach the level of CR- form aluminium oxide catalyst made by France.

This product is suitable for the sulfur recovery in the refined oil plant, natural gas plant, coal gas.

Specifications

Particle Size mm AGC-I (4-6) AGC-II (4-6 )
Specific surface area m2/g 200 min 280-400min
Pore Volume cm3/g 0.4min 0.45min
Bulk Density g/cm2 0.65min 0.72min
Crushing Strength N/sphere 100min 110min
Abrasion rate % 0.5 max 0.5 max
Na2O3% 0.3max 0.25max
A12O3 94.0min  

Packing:

25 kg. steel drum, 140 Kg. Steel Drum

Precautions:

  • In the operation process, prevent the bed layer of the reactor from high temperature, carbon deposition and sulfation, start or stop working carefully, so as to keep the high activity of catalyst and prolong the service life of catalyst.

  • The oxygen and sulfur dioxide content in the air flow entered into the reactor should be decreased as much as possible, so as to prevent the catalyst from sulfation poisoning. At normal operation H2S/SO2(molecular rate)should be about 2.

  • Under the air flow containing sulfur steam, the temperature in all part of the bed layer of the reactor should be less than the dew point of sulfur, so as to avoid the sulfur deposition on catalyst and plugging off the pipeline. Any wrong operation of raise temperature or drop temperature should be avoided.

  • Amines, hydrocarbons and ammonium etc. should be avoided into reactor, so as to prevent the catalyst from carbon deposition, plugging the pipeline and forming poisonous such as ammonium sulfate etc.