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Activated Alumina Powder Absorbent and Catalyst
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.
Precautions:
1. 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.
2. 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.
3. 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.
4. 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.